Take One Audio 派美 CS Port Viva Esturo Kuzma

Click pics to enlarge. More pics and captions below. Above: Treasures are everywhere, but for the vintage afficionado I note behind the sofa a classic vintage Luxman 300B amp!

 
Letter from Hong Kong (24-14): Another Longest Day, Part I

Visit to Take One Audio

Written in Shenzhen

My taskmaster icefox sends so much audio info out a day that I'm not sure how he functions in his real job. SO! even before this day, Last Saturday, like last time, icefox scheduled a full day's activities, of which this is the start.

I have long heard of Take One Audio in Kwai Chung (very detailed report in Chinese), a high-end dealer. I met icefox and Brother Shan 山哥 and Take One partner 新哥 and old friend 欧阳 and had dim sum. Then we went for an afternoon of demo that showcased Japanese CS Port Analog and Tube Electronic products and Italian Viva Horns, conducted by the affable Johnny of Distributor 派美 and assisted by Take One partner 德哥. The whole thing is reported here in Weixin, with much better info on the esotericas and pics than my cellphone can muster. Western readers should find these rare stuff interesting too, with the help of translation.

The Jap CS Port tube gear use a lot of C3G tube (long a DIY fav). The Phonoamp, Preamp and Amp use this tube. The amp uses the monstrous 212 tube (not sure if we heard the NOS UK STC version); most interestingly, it uses SMPS, and so is very light. Mind you, there are a LOT of 212 amps around now, including Chinese Line Magnetic (both Foshan and Zhuhai) which use huge LPS and are very heavy.

Only LPs were heard on the flagship CS Port TT, with Esturo Gold Diamond Cartridge. On this day, while sound was very refined and luxurious, it lacked a bit of rhythmic exactitude. The Viva horns projected real sized images but seemed polite too. I pined for a good CD or even BT for comparison but of course it was not to be had. However, a very interesting demo and I thank our hosts. I'd love to re-visit, especially since I didn't hear the outer room! You should visit too! An unbelievable Treasure Trove!

They are also Kuzma and Verdier dealers (both brands are my favs), and, wow, the TTs just are mouth watering! I MUST re-visit!

A great start for the day, and many thanks for the excellent coffee!

The outer room houses Viva 211 amp and CS Port GM70 amp, which sources tell me

are excellent through the Trenner & Friedl loudspeakers!

The Vintage Corner. Note Leak TL12, Marantz 9. In fore-front Appollo Amp.

Italian Viva horns. Back CS Port 212 amps and, last row, luxurious electronics

 and TTs by CS Port and Kuzma.

Kinoshita Loudspeakers and a myriad of Cartridges including Koetsu, Dynavector and AT.

Faith, Conviction, Cheap Amps

Click pics to enlarge. Australian Surfer rides with Dolphin pod (Getty Images)

Letter from Shenzhen (24-7): Faith, Conviction, Cheap Amps

This article is on some thoughts I have been having lately. It kind of all started with some items I just picked up from Douk, a bit of reading, and then one thought led to another. I shall start with a quote from Prestomusic's Interview of the phenomenal Korean pianist Yunchan Lim:

PM: You’ve cited pianists such as Friedman, Cortot and Horowitz as influences on how you approach the Études - what is it about these pianists that you find so particularly powerful?

Lim: People who make brilliant sounds of warmth. People who play with faith without hesitation. It's more important to play with faith than conviction. Conviction can't change, but faith can always change and develop.

Faith and Conviction Lim's words are fascinating, and amazing from such a young man (obviously in his youth he hasn't been dumbed by apps like Tik-Tok, whatever). It led me to contemplate on how these inner qualities affect audiophiles. What does Lim mean? In the case of Lim, I think he means those iconic musicians were guided by their beliefs in their mission as messengers for music, much less so by how a particular piece must be played in a particular way. Certainly, for students of piano playing, from the recorded legacy of these masters the same Chopin Etude sounds drastically different from one account to another. There's a lesson for audiophiles here. Audiophile Convictions To my thinking, conviction is usually arrived at after some experience, observation and reasoning, hopefully with a degree of objectivity, which however can vary greatly with individuals. Audiophiles are quite a vocal bunch, and harbor many many convictions, like "Analog is superior to Digital", "LPS is superior to SMPS",  "Solid Core is better than Stranded", not to mention those caricature-like "puritans" (in quotes only because the term elevates these idiots) in the Audioscience forum: "absolutely no tube!", to cite just a few. LOL! Me? Yes, I have my convictions, like "Tube rules" (yes, I'm not much of a sand lover), "Direct-heated better than Indirect", "Triode Operation better than Ultralinear", "Thorens TD-124 is the best TT, bar none" etc. And it would take a lot to convince me otherwise, impossible actually, as it's a lifetime's distillation, for me, along in my years. BUT, it's very important to note here that I use horns and other fairly easy-to-drive loudspeakers (another strong belief) but I can and do make allowances for situations that demand deviations from my norm (e.g., Maggies are wonderful loudspeakers, but SET ain't going to work at all). Audiophile Faith First, what is Faith? From terms like "Blind Faith" and "Leap of Faith" one knows, more than "Conviction", it's not entirely "Rational". Faith has a glow, a look towards the future (even afterlife) and a comforting aura or cushion for those immersed. I don't knock it - it keeps many going. What then is Audiophile Faith? I'd say the Belief that as we go along (and keep spending money) our system shall improve, or even achieve Nirvana; problem is how we choose to go about it. Many audiophiles, especially those with relatively short experience, are inquisitive and avid readers who cast their nets wide, but with the hugely diverse audiophile populations out there choosing who to believe and what path to follow is basically impossible - one frequently ends up choosing someone or something on faith, at least at first (I reckon one will drift away if the preaching's or recipes don't work the second, third time...). DIY people have hugely misplaced faith in "quality" components, all thinking that just because they use expensive components that the usual audio manufacturers don't, their products shall of course be better. Problem is, few of them know how to voice something - too much "science", not enough art. It's simpler, at least for those with money, to fall into certain manufacturers' bloated system and level upgrade approach. A full ANUK system (or even worse, for that matter, Burmester, Linn, whatever,) will however only get you so far. These companies demand you to have faith in their approach, and your loyalty (and your dough). But come on, while ANUK can sound OK, all that money for their top AN-E, which will not thrill me enough (in NYC I'm used to 15" horn woofers with my SET)? It's as laughable as the full metal jacket Linn LP-12. All ridiculously hyped, perhaps reasonably decent products that unfortunately are contorted to offer ridiculously overpriced upgrades and inflate themselves way out of proportion to pretend to be giants (see my ANUK summation here). My Faith? In terms of Audio, although I do have my many convictions, I am a pragmatist and agnostic and, more and more, cheapskate. But My Faith is that Audio will deliver Better Music for me and it's worth the occasional struggle (make sure it's not too often, not to say everyday). I rely on it, and it delivers! Even here in SZ, where my cheap stuff have forced me to diversify and re-invent my approaches, I remain faithful. The important thing is enjoyment. At this point, after bringing back tubes from HK etc, my humble SZ setups provide me with sound that is almost on par with HK. Satisfied. There's another kind of Faith that is important for us music lovers: Faith in the continuing emergence of musical talents. To be honest, many audiophiles (including some friends, and critics) really bother me. They listen to the same songs, or alikes, repeatedly. Take Ken Kessler, he praises every re-issue of old albums. The same things over and over. We should at least devote a good portion of our time to stream new music, new artists. Otherwise, there is no future.

Cheaptubeaudio Modus Operandi For the longest time, this blog was only me writing about whatever crossed my mind or just acquired. Then we have a few more writers and contributors, all writing about stuff they have purchased themselves (sometimes I solicit the commentators). Here in Shenzhen, I eventually started writing about cheap stuff that I bought from Taobao. Only in the last couple of years have things changed, just a little, in that I (we) get to test some loaner units. Some Points: 1) Shenzhen and adjacent areas happen to have a lot of low-end manufacturers, like Aiyima, Douk and Fosi; 2) these companies are keen to let others try their (very low cost) stuff, so after I made the acquaintance of Aiyima and Douk once in a while I pick up a few of theirs for testing; 3) they never force anything on me, and I only pick up what on features or looks appeal to me - like the latest (and surprisingly accomplished) Douk equalizing preamp T8 Pro. You shall note that, even in this low end world, aside from an occasional sand power amp, I tilt towards products with tubes; 4) I don't write about everything I've picked up and tested, not even close. Many are OK but lack a stand-out point for me to write about, while some others fail to entice; 5) Peer Review Occasionally, I'd decide an item should be reviewed by someone else (too), and so is passed to HK (I also engage with my NYC friends). It started with the Aiyima A-08 Pro, which was sent to ELO. Now that crossing between HK and SZ is easy (and fun if you avoid the crowds), I can even bring them over myself if I deem it worthwhile. That happened with my own (paid for) UMI and Reisong Transformers, which are still with my HK friends. Some earphone amps (admittedly far from our priorities) are with Shawn P, as he has a much greater variety of earphones. More opinions, maybe some dissent and, just perhaps, more interesting.

Cheap T(D)-Amps etc In Perspective Given the recent periodic prominence of these things in this blog (judged by readership stats and comments), a bit of the mandate of the "Cheaptubeaudio" has been obscured perhaps. That's OK. Even prior to T-amps, I have written enough on good (discrete) solid state stuff too, especially classic integrated amps (especially UK ones like NAD 3020, Naim Nait, Cyrus etc, see my comprehensive Overview)! Even prior to my return to HK/SZ, way back in NYC I've started my foray into T-amps with the Lepai 2020A+ (2015) and later the SMSL SA36A Pro (2018), so you can say I have long (but not deep) experience on T-amps. Why not deep? Simple - SET still sounds better. And, more recently, during the lockdown of course I on impulse bought the Aiyima T-9 (which has 2 tubes), which gave me something to play/do.

Some Points: 1) I have subsequently tested some cheap separates, with or without tube buffers, digital preamps and amps, but few appeal to me more than the small "integrated" T9. It's not that it is that special really - perhaps part of this has to do with the formative experience and circumstance around it, part due to my favored small form factors too, but somehow... 2) I suspect T-amps (at least cheap ones, not to mention dirt-cheap ones) are not meant to be high-powered beasts. You shall notice that all my T-amps are not high in power. Yes, you can coax a lot more power out of some of them with a high Voltage PS (say, 48V) but I think you will for sure lose some critical refinement (same with any topology, be it discrete ss or tube). The relatively high powered Aiyima A-08 Pro is powerful, energetic and vivacious, yang, but it lacks (crucial for me) a certain degree of ying, smoothness and refinement. Mind you, unlike ELO, my loudspeakers are easy to drive and I more easily (and logically according to my convictions) prefer less power with them. On the other hand, my recent experience with the Douk H7 Pro is a surprise - something that I perhaps can live with if there's another lockdown and I'm caught without tubes, and it makes up for the potential downsides of the Beydas 11 ohm (full but less tactile bass compared to the 15 ohm). Still, from memory, the best T-amp sounds in my experience are still the flea powered Lepai and not-that-much-more-powerful SMSL (on which the estimable and honorable veteran commendatore Sg. Surdi had also put in a word in this blog) but then I was testing them on more efficient loudspeakers in NYC, and the Douk likely runs them close; 3) although I'm tolerant of sand amps, including T- and D- amps, they shall never be my main amps, even if I recognize and appreciate very much their Green Credentials; 4) I agree that better power supply and ancillary circuit tweaks can elevate the performance, as even high-end manufacturers are doing to humble modules (and selling for astronomical prices), but I think that's missing what's for me the esprit and raison d'etre of such devices - value for money. Cheapsandaudio - perhaps that should be a sister blog but, no, thanks...5) as a corollary, there's no point in investing too much money in what is ultimately (my conviction) technologies that do not (as no sand can) surpass what a good SET tube (or even an old classic integrated, see below) can do! Mind you, there have been quite some people who have left tube (including SET) for T- and D-amps. There are a lot of people who spend much more on upgrades on these cheap amps (Op-amps, LPS, expensive caps). IMHO no amount of overkill can elevate these significantly; 6) that said, there are plenty of bad tube products out there and these humble but good sounding sand devices serve as a reminder that there is no place for them; 7) IMHO, no matter how cheap these are, there is little point of acquiring several - they are more alike than different; 8) Suggestion for Reality Testing: I can totally understand people who do not want to get into tubes. But for those with less audio experience under their belt, a classic integrated mentioned above would be a good watchdog - meaning whatever complicated systems we drum up must surpass the integrated as a whole to be worthwhile, which is harder than you think! This is like my NYC friend Andy's ancient AR Turntable; he jokes that any new TT has to surpass the AR to be allowed to join his stable.

Cheap Preamps In Perspective In terms of actual usage out there in the wide world, these T- and D- amp products cannot be separated from their stable partner preamps and digital products. As is the trend, many products try to be everything, so we have increasingly preamps with built in DAC that allow for full digital inputs and BT, often with a headphone output thrown in. Most have a Tubed Buffer. Ponder why that is! Aside from potential sonic benefits, it offers the chance to tweak (just like opamps). There are literally hundreds of these out there, and I've heard a few. All these opamp based preamps with tube buffer (mostly with built in digital) sound pretty decent, so why don't I write about them? Well, because they cannot beat a pure tube preamp of my choice used with a DAC of my choice. The only exception I made is the Douk T8 Pro (which has no digital in), which has equalizing functions and can roll a lot of different tubes (which I already have). Even then, in terms of soundstage air, it is not quite on the level of all-tube preamps, not to mention the DHT Douk E6, but it makes up for that with its even performance and a commendably fast transient. (useful with Beydas 11 ohm). 

I remain firm on my general preference for all tube Preamps. But the cheap ones have their share of headaches. Even with my limited experience, I can say the cheap pots used in many of these cheap tube gear have a good chance of failing at some point. Witness my ETA 6N3 SRPP Preamp and BRZ 6L6 SE Amp (here). These use open dirt cheap pots, not the small sealed ones soldered onto circuit boards in most T(D) amps and opamp based preamps. Mind you, the sealed ones can fail too, but the chance is smaller (Douk boss says may be 1%). Despite the troubles, All-tube Preamps have in general superior soundstage and air, not to mention tonal allure. But there is another reason for the use of a (non-digital) sole-purposed Preamp - we can use a digital source of our choice, and that is very important! And don't forget, we can insert a 1:1 Transformer between (be it UMI or Reisong) and that can be a game changer!

Ellington Band 1931 (Getty Images)

Douk H7 Pro Nobsound

Click pics to enlarge.

Review: Douk H7 Pro, Part I

Part II (on XLR use)

Surprise! I'm actually in the middle of writing another article that shall tell the story better. But, hell, sometimes we usurp our own order, even upstage ourselves. Let it be known that I have a couple of new toys, and this one is perhaps easier to start with, even if it didn't appear so at first.

As you know, I'm not usually a solid state person but lately I've been using the Beydas 11 ohm "LS3/5A", and I know it can take to solid state amps just as well as (or even better than) tube amps. So, during a recent visit to Douk, I spotted this amp, which looks marvelously finished, and I brought it home (some kind of pet mentality, or sheer vanity?). This one is a higher powered one, a TPA-3255 amp that is able to take 48V DC. It's akin to the Aiyima A-08 Pro which ELO has reviewed before and still uses. So, I decided to give it a try, with the thought that if it passes my initial muster I'd have ELO compare it with the A08 Pro.

Built and Ergonomics Not much to comment on. The gun-metal finish is fabulous. Internals look well built with good components. This is just a simple amp. No digital input, no BT. No Op-amp sockets for swapping. Unlike its predecessor H7, this Pro version has a single volume knob, balance knob and dual meters. The meter sensitivities are adjustable via pots on the bottom. For the Inputs, there is one RCA and, unusually, one XLR.

Steup I just brought back the amp, without box or anything else. Standard PS I think is 32V, but for testing I just used my Aiyima T9's 24V SMPS supply. IMHO, the less the power the better (if your loudspeakers are reasonably efficient). The H7 Pro is barely warm even after running for the whole day.

Run-In Be patient, it took a while (at least several full days of play) for the amp to run-in (as well as for me to acclimatize again to solid state). Run-in definitely smooths out the initial rough edges, which are particularly noticeable in classical music. In case you don't know (say, you're Ken Kessler) vocals, jazz, pop are the easiest to reproduce and classicals the hardest. Many systems can pass with jazz and pop but fail miserably with classical; far too may in my experience. Mind you, I don't look at this from a classical music vantage point; rather, my system must play everything well!

Associated Equipment With the Beydas "LS3/5A" as mentioned. DAC initially was my default workhorse 1-bit  TDA-1305, later an exciting new toy (a tubed DAC/BT/Preamp) which shall for now (not for long) remain unnamed. Preamps tested were the usual Tubed suspects, ETA 6N3 SRPP, Douk T8 Pro, Douk E6 and my 6J4/6P3P Preamp.

Performance I didn't expect to review this so soon, but everything went smoothly after patient run-in. Marvelous!

• A Word on Cables I basically used my regular cables (for interconnects, like Belden 8451), no different than when I'm using my tube amps. But, initially, for convenience, I recruited my Canare 4S10F 4-conductor bi-wire loudspeaker cable (normally hooked up to our keyboard and Sansui loudspeakers) just because I didn't want to upend my tube amps. But during the run-in, the sound proved to be too forward and a little sharp, so I reluctantly reverted back to my somewhat slower and darker (but more depth) "Belden 1309" and, voila! that smoothed out the sound significantly and they stayed.

• As Integrated Amp This means, in my case, DAC direct in, using the unit's volume control. From my listening, this is an amp with a passive volume control (no additional gain in "preamp stage"). Sound is decent and transparent, with good air, rhythm and pace. The initial bit of tightness and treble grain smoothed out with run-in. I right now have on hand 2 DACs, and they are very different, and the H7 Pro effortlessly shows the difference. Very good!

• With Tube Preamp Used as an amp, the volume is maxed out. Although each Preamp brings its own color, across the board a (Tube) Preamp brings additional benefits: more tonal sheen, better control and greater dynamics. Addition of preamp also makes the images a little more textured and clearer in outline. Of course, tubes make the soundstage larger and airier. The transparency of the H7 Pro means the differences between the preamps are very apparent: the 6J4/6P3P is slower in transient and less focused, which I preferred during run-in, but not afterwards; the ETA 6N3 SRPP (with JAN GE 5670) is very focused and airy but it developed problems (again); the tube-buffered op-amp based Douk T8 Pro (with 6CG7) proves to be a good match, well-tempered and with good transient speed. As for the Douk E6 , it imparts the most air and the largest soundstage.

• XLO Facilities I haven't tested this yet, as I don't have any XLR cables or adaptors here in SZ. But next time I go to HK I shall bring both the H7 Pro and T8 Pro with me to test out the XLR connection. Not only that, I could challenge the H7 Pro with the B&W Matrix 801 Mk II - a tall one indeed.

• vs Aiyima A08 Pro I don't have the Aiyima anymore. From my memory, I'd reckon the H7 Pro is a little smoother and more refined. But why rely on faulty memory? I shall get this to ELO, who is still using the Aiyima, for a fair comparison. Also, his Dynaudio Crafft is much harder to drive, so that's a good challenge. And, he has the larger power supply (36V). Whether he agrees with my assessment or not, I shall be happy with a large slice of truth!

I have been listening to this for days and haven't gone back to my tube amps yet. I don't miss the extra liquidity and that says a lot about the H7 Pro. Recommended without reservation!

Below are several albums played during this evaluation. Big complex works well rendered!

Stunning Varese (Vol 2 just as great) 

Muscular Elgar, This is BIG Brass galore and not for once the sound grates.

Wonderful 17th Century Spanish Music for trumpet and Organ

Wonderful scores even if you don't know the movies

UMI 2 Clarity Plus S2

Letter from Hong Kong (24-13): ELO on UMI 2 Clarity Plus S2, Part II

UMI 2 Clarity Plus S2, Part I

It's been a few weeks since I received the new UMI 2 and I have been using it everyday. Some may wonder why I am so enthusiastic about this product. I hereby declare that I have no personal interest in this brand and I bought my own UMI unit. I do not  know Engineer Li (the chief designer) nor had any contact with him although I would love to meet him!

I have been praising this little transformer for so long (since Mk I) it's possible some readers may wonder whether I have overexaggerated the effects. Well, thanks to Icefox, who had recently organized a group buy, 3 of my Hifi friends who trust my ears also took the plunge.

Initial Feedbacks from my Hifi Friends

Kwong He has been my long term Hifi buddy since the 90s. We have been inspiring each other and often recommend gadgets and gear to each other. I took his advice on the "Studer" cables and the popular little Bluetooth device H9A. The "Studer" Cables has now become indispensable in my system. While I had recommended to him quite a few items in his current system:Audionet, JMR, Holo Spring, Rayaudio and now the UMI! 

He was so excited that he called me on two consecutive nights to tell me how amazing this unit is! At the beginning, the sound of UMI 2 Clarity Plus was not appetizing to him at all! But the second night, with a little play time under the belt, the unit transformed itself and then went from strength to strength! Here's his view:

"...the high end extension seems limitless. With the UMI, the supertweeter flourished. The music is now extended beyond the walls and the soundstage had been pushed back 3 feet to create a holographic soundstage. The decay of instrument seems to last forever, like the half-life of Uranium, LOL! The loudspeakers just disappeared!

...Background becomes darker, resulting in heaps of low-level details emerging from the depths. Bass extension improves and more bass details show up. Playing Chinese Guqin is such a treat and I'm stunned by the endless reverbs of decaying notes washing over each other. Imagine rain falling on a pond and creating ripples which intersect with each other!

...Vocals is natural with no edges nor any digital glare. I'm drawn into the sea of music and have no choice but to isten to song after song. Even familar songs which I have listened to hundreds of times sound like brand new songs or recordings!

...In conclusion, UMI is THE most important upgrade in my system. The word "improve" is not enough; "transform" is more like it!..."

Needless to say, he immediately placed an order for additional one!!

"7" Another friend  who was perhaps a bit skeptical initially about my overly enthusiastic recommendation (remember that I almost lost a friend over hard persuasion) and procrastinated a bit but finally joined the group buy. Needless to say, we have another happy customer, and here's what he wrote:

"...好多謝一位音響師兄前輩朋友ELO兄介紹我使用，起初都半信半疑，引不起即時購買嘅意欲，又相隔一段時間，ELO師兄告知攪了一個團購計劃，抱住信ELO師兄心態去購買，貨到時ELO師還親自帶給我，正值下午時份沒時間測試，當晚工作結束，打開包裝插進系統，一著機，這還是我的系統嗎？這音效從未出現在我的音樂室，真是太豐富太精彩，多了從來未聽過的音樂細節，這次真是買對了，也即時覺得這次花費，物有所值，完全超出金錢上的性價比，真的沒有介紹錯，我還打算多購入一台去再次提升糸统，這次花錢來得出的效果十分顯著明顯有效，感謝ELO兄推介，也希望多啲同好受惠..."

(Translation: Many thanks to my HiFi friend ELO who had introduced the UMI to me. At first I was skeptical with the UMI and did not have the urge to try it out. After a few months has passed, ELO told me that there's a group buy, so I thought I may give that a try based on his recommendation. ELO delivered the UMI 2 to me in person! I waited till the night after work and unwrapped the unit and hooked it up immediately. At once , I asked myself if this is the same system I  have been listening to everyday? The extent of impact and improvement brought by UMI2 has not been experienced in my music room previously and it's simply amazing. I heard so much more details in music which were not picked up before. I think I made a right decision and also think the money spent is well worth it. The PQR value surpasses any products I had bought previously. That was a heck of a recommendation and I am planning to buy another unit, hoping to elevate further the performance, which is so pronounced and immediate. Thanks ELO for his persistent recommendation, and hope more hifi lovers can benefit from this unit.)

Also, needless to say, he immediately placed an order for additional one!!

"7" also bought a vintage MF power amp recently and I asked him how it is. He said  with confidence "With UMI in the mix, everything that you throw in always sounds good!!"

Jo Another music lover friend of mine, Jo has been following my recommendations on building up his system, and after the listening session Chez Mila (see Part I), he was really gobsmacked by Mila's system and the changes UMI made. However, although he feels that in his system there are improvement when UMI is plugged in, his deelings do not seem to be up to the magnitude expressed by Kwong and "7". Also, he thinks that his noise background at home is not dark enough to reveal all the details. Therefore, I will leave him time to improve on his setup first. He will try to make a DIY ground box to lower the noise floor further. So stay tuned!

Well, things has progressed unexpectedly in a good way. I had bought him some tourmaline chips and a big piece of black tourmaline for him to DIY a gorund box. Today, he bought a wooden box and use a cheapo wire to connect it to the back of his router. He heard a difference immediately and can hear more nuances of singing skills of  Sandy Lam which makes her famous! So his setup has improved due to various upgrade! Good to know!  I give some credit to his DIY Ground box, UMI1 and "Studer" cable, LOL!

My impressions
By now, you must be curious on my own experience with the UMI 2 Clarity Plus S2 and how does that compare to my UMI 1. After I plugged in the UMI 2 and start listening to it, I lent my UMI 1 to Dr. Lo so I still haven't had the chance to directly A/B. Strangely, Dr. Lo is the only person among my friends who has experienced a setback in musical experience. I don't know what went wrong and scratch my head. He's giving me the chance to go over to his place; maybe I can try to find out why and that's the fun of playing with Hifi, haha.

My initial feeling is, if broken down into hifi parameters, all the good things that UMI 1 has, UMI 2 Clarity Plus has them too, and perhaps I do not feel any significant improvement. However, as a whole, there is an improvement in overall musical experience. The sound has gained refinement and has become more organic, smoother, more natural and musical. At first, I felt that there may be a slight loss in detail when compared to UMI 1. But the more I listen, the more I do not feel that way. In fact, the details are there but not as flashy. The music presentation has become more holistic -  I would  say overall a 10 to 15% increase in quality of UMI 2 Clarity Plus over UMI 1 (since the starting point of UMI 1 is quite high already)

2024 Shanghai AV Show

Letter from Shenzhen (24-6): 2024 Shanghai AV Show

This Weekend is the Shanghai AV Show. There may be more than one audio shows in Shanghai but this one is pretty big and it looks like all major players are there. This report is by the Weixin Site 视听至前线. Declaration: all pics from them (click to enlarge). Those with WX can watch it on their Cellphones. Those without can peruse the links below:

Part I, Part II

It hardly matters if you don't know Chinese. The pictures speak for themselves, and you may find things to linger on. For me, it's just like a somewhat bigger Shenzhen Show. American readers will find many brands they don't know about. Enjoy.

I'd love to have this "desktop" Mini Maggies and Audio Hungary Tube Amp

Looks like a Klipsch Forte IV, but some kind of special edition?

MouthDancing Cafe 嘴舞咖啡

Click pics to enlarge. The top pic is placed only because this is an audio blog after all. Sun Audio 2A3 amp (with good old-stock tubes) driving Proac Tablette (a later edition). Rega TT. To the right, the “Chemistry Lab Apparatus" flanking Leon is what is used to make Ice-Drip Coffee!

Letter from Shenzhen (24-5): MouthDancing Cafe 嘴舞咖啡

Desert Flower 沙漠之花

Note: A Chinese expose shall be added soon. Come back soon.

Serendipity! Some months ago ELO mentioned that he knows this interesting fellow from Hong Kong who has opened a Boutique Cafe in Longgang district (borough), where I live. After some to and fro, I found out it is located on a street which I know very well because I have lunch once in a while at several of the cheap eateries around there! I have witnessed first hand the transformation of this very street - previously it was a sleepy neighborhood street with humble eateries but over the last years swanker Cafes kept popping up. 

This Cafe is called MouthDancing. Just a few days ago I finally met the proprietor, Jim Chan. Over an excellent Expresso I had a great conversation with him. Jim is a soft-spoken but very particular man and a Polyglot! Just what a good Cafe needs (as a Bar needs good Bartenders). Of course, he's a Barista par excellence but it's astonishing what else he is well versed in. His accomplishments are too many to mention (what's not mentioned below is that he was a boutique eyeglass and interior designer for many years), some of which you will find in the captions to the pics below.

The space is not big, but it's subtly divided in cells that hide Jim's ambitions. Appreciation of the art of Flower Arrangement, Visual Arts, Cinema, and Music. Jim knows many of HK's cultural and art influencers and I'd just urge you to chat with him, as he's a cornucopia of knowledge, and not afraid to tell you his true opinion. His broad embrace of the arts, cultural climate and adaptation to reality is well worth listening to!

A bit later, Jim made a (for me) highly unusual Hand-Drip Coffee and it was wonderful to savor the taste change as it went from hot to warm. This is a masterwork. Jim has his beans roasted to his specifications.

Jim has his staff (a girl-next-door on the day I visited) well trained. Jim splits his time between HK and SZ. In this SZ shop you'll find him Monday to Wednesday.

Here we have an Auteur.

And why do I say "Desert Flower"? Well, much of the Longgang district (the Eastern sector, where we are, is very different from the Western sector, which is closer to the center of town) is quite boring in comparison with hipper boroughs like Nanshan, Baoan and Futian, even Lohu. And it's a cultural desert if you ask me. Not much of artistic significance happens around here. We need more people like Jim here to spice up the place.

Home made desserts. Looks Yummy. You know, it's hard to get an authentic Tiramisu anywhere.

Varietals on Offer.

Jim's many Certifications on Flower Arrangements 

We all love Beatles

The Young Regulars arrived in a flamboyant Race Car

Movie Posters, including my favorite Luc Besson.

Mother's Day Masterclass on Flower Arrangements

Beydas Douk T8 Pro GE 5670 WE 274B 350B 80

Click pics to enlarge. R, WE 350B.

Letter from Shenzhen (24-4): Listening Notes

Douk T8 Pro, Part II (Transient Speed)

ETA Preamp, Part IV (Contact Woes, Failed Pot Replaced, GE 5670)

BRZ 6L6 SE Amp, Part IV (WE350B, Defective Volume Pot, Failed 6N2 Adaptor)

BRZ FU-50 Amp, Part III (with 80 Rectifier)

Douk T8 Pro Equalizing Preamp, Part I, Part III (on XLR use)

Eastern Transmission Audio (ETA) 6N3 SRPP Preamp (Parts I-III)

BRZ 6L6 SE Amp (Parts I-III)

BRZ FU-50 Amp (Parts I-II)

Lately, though still based in SZ (hint: not for long), I have had the opportunity to conduct some listening sessions in HK, much of it reported in recent articles. I had been busy writing those up as well as with private matters, so it's now time to update you on what I've been up to around here in SZ. It's basically tinkering with what I have here, AND with some tube rolling. Not just any tube, but some old stock Western Electric tubes brought over from HK; with WE, it's always a transformative experience! But I shall start with humbler stuff.

Loudspeakers: Beydas 15 ohm and 11 ohm "LS3/5A"

Previously, I detailed my Struggle with Beydas 11 ohm after I returned form NYC in September 2023. Some time later, I substituted the 15 ohm version and also initially had a rough time adapting to it (chronicled here). After a while, I again "tamed" it to my satisfaction. Then, sadistic me reverted back to the 11 ohm and again had to struggle to get the best sound. But, through all these, I gained some insights:

• Whether for initial run-in or after long disuse, (re-)running them in is a must.

• 15 ohm This version is really quite lean in the bass but easier to manage in a way. The lack of bass heft (at least 10db less than the 11 ohm) ensures good transient response and clarity in the midband and ease of partnering. When properly matched, sound is very lucid but the lightness in the bass shall not suit all, though I find its bass pitch and definition highly satisfactory.

• 11 ohm This version is much more bassy, but at the cost of some loss of definition in the lower midrange and bass. Therefore, more care has to be taken with partnering equipment. Overly rich-sounding gear or "tubey" stuff may not do so well, resulting in a sound that is rolled off in the treble and smeared lower down (reader Collins has complained of this, but I don't know his associated equipment). Transistor or T- and D- amps likely do better. What one needs is better speed and definition in the amplification. E.g. my Douk T8 Pro Preamp suits it more than my others because of its superior transient speed (see below). The Beydas 11 ohm also respond well to my leaner sounding BRZ FU50 (when used with a suitable rectifier). When optimized, sound is perhaps a little closer to the real LS3/5As than the "15 ohm".

2 Preamps: Douk T8 Pro and ETA 6N3 SRPP For this period, I've been mainly using these 2 preamps.

• Douk T8 Pro This Preamp has continuously surprised me by its versatility. Mind you, this is the only Preamp in my active use arsenal here that is not pure tube, being a tube buffered op-amp design. But why not? The very expensive MBL 6010 (which is garbage imho) is just an opamp preamp that sells for the price of a car! But to compare the Douk with MBL is to tarnish the Douk, which has much more flexibility and sheer life to it! Transient Speed As mentioned before, its prowess here saves the day in many a situation. It serves the 11 ohm Beydas (which can be darkish) well. With tube gear, sometimes things gets slowed down and, when overly so, is not desirable. A faster transient preamp can make the difference. That said, faster transients can exact a cost. Things can get breathless, which is NOT the case here, thank God. Perhaps sometimes one wishes for a trifle more lingering, a little more harmonics, but one adapts. Suffice to say, it proves very useful here in SZ. XLR Use Finally, one day I brought it over to HK (with stock small wall wart). I connected it (with Gotham GAC-3 XLR cables) between the XLR output of my Marantz 94 Limited DAC and an early iteration of Bryston 4B amp, driving the B&W Matrix 801 Mk II. Sound was very good. At low volume, I swear it was even more detailed than many of my hifi preamps, the hybrid ARC SP-11 included. But, ultimately, at higher levels, it did not prove to be better at matching with the Bryston than my RCA output only tube preamps, be them MFA Magus or even Counterpoint SA3000. So, not a success yet. Capacitor Mods There being so many, I have to contact Douk on which ones are the most important. But this is in the agenda.

• ETA 6N3 SRPP Preamp (pic above with 5670 tubes) As mentioned previously (in Part III), the Preamp developed problems in RCA Contact as well as Volume Pot. RCA Terminal Woes I thought I rectified this after re-soldering but it irritatingly still periodically failed (even sometimes as I write) to make contact with my GAC-2 (brought over from HK) which has the "Canare" plugs I bought from Apliu St (and SZ 万商) ages ago (and I never had problems with my gear in HK). These plugs manifestly don't agree with the ETA's RCA terminals, which look of "reasonable quality" outwardly. Some wiggling is usually required to enforce contact. But I'm thinking of changing them out. Incidentally, my cheap Rean plugs don't have this problem. Volume Pot I finally dug out the spare tiny cheap Volume Pot that came with one of the kits. It's 100K instead of the ETA stock 50K. What the hell, I just did the surgery, not too difficult. Voila! The pot functions well (for now) and I could use it at all positions, even with my BRZ 6L6 Amp! GE JAN 5670 Finally, I yielded to temptation and bought a few from Taobao (cheaper than HK or US). These were from '86, last of the Mohican's, but came matched in sections (as JAN tubes are wont to be). Of course, I'd have preferred WE396A /2C51 but those now command very high prices. At first, I was non-plussed by the sound of the GE 5670 - controlled and finely textured but overly reticent. For quite a while, I reverted back to my Douk T8 Pro (with 6CG7) for more oomph factor. BUT, guess what? The 5670 gradually came to life, becoming livelier and more dynamic, and now can serve in most situations, though some may still prefer the more gun-ho nature of the Russian 6N3. This tube takes quite a while to run-in! I have more to say on this tube but it shall be in another article devoted to tubes.

3 Amps: APPLause 300B, BRZ FU-50 and 6L6 SE; WE 274B and 350B For the past months, especially when the weather was cool, I have rotated these amps, especially the hotter 300B (yes, my most powerful one, LOL). BUT, I brought over the a WE274B ('82) and later WE 350B ('79). Boy oh boy, are they game changers! Yes, they are late old-stock productions, but their merits just shine through. I'm confident they are miles ahead of current re-issues.

Now, my system is powered on basically from the moment I wake up to when I go to sleep, minus the 2 hours I go out for lunch and a walk, so we're talking about 10-12 hours a day for most days. While I write and multitask and so on, I would not be in critical listening mode. Most likely, I'd be sampling new releases. All these activities mandate a system that sounds decent enough but do not warrant putting in the very expensive WE tubes, which are reserved for very critical listening! Believe it or not, I had a hard time establishing the hierarchy of my amps. That is, which to choose for "casual" listening, and which to choose for more dedicated sessions?

I love exploring new releases. While some are just superb, more are disappointing, even from artists I follow. Believe it or not, a change of tube sometimes just changes how I perceive the music and make me re-evaluate. No WE can make a deadwood dance, but a shift of perception from merely metronomic to rhythmically more savvy, or from plainness to more harmonically fulfilled, is definitely possible!

• WE 274B Of course, this immediately transformed the sound of my tube-rectified APPLause 300B amp and BRZ FU-50 amp. The sheen, rhythmic subtlety and ease of delivery is immediately evident. Mind you, many audiophiles, including many I know, are arrested in the tonality stage and judge everything by a few vocal recordings (kinda like HiFi News Kessler) and these people often fail to grasp what makes WE great. Problem is, should I run the 274B for >10 hours a day? I cringe...Mind you, many modern tubes tout themselves for guaranteed 3000 hours but, man, this is less than a year for me! I know, WE tubes can last forever, but we still want to use them when everything is optimal, not wasted.

• APPLause 300B Putting aside the 274B, this amp runs well on my Chatham 5R4WGY and Philips JAN 5R4WGB and National Union old 5U4G. The hotter the weather, perhaps the less suitable this amp. It just occurs to me to swap out the Linlai 300B and exchange with my older Russian and Chinese 300B's in HK. Soon. No, I'm not going to bring my WE 300Bs over to SZ, as I'm in Retreat Mode. I tried my Tung Sol 80 (ST engraved) too: it works despite arcing on turn on; and current drops to 130 mA for both channels combined. Fine with me, but the 80 works better below...

• BRZ FU-50 This amp I use the most, because it's performs well enough (less power than 300B) and does not heat up the room so much that it can be used in the summer. My Tung Sol 80 (ST) works very well in this amp (with adaptor). No arcing and it complements the slightly leaner sonority of the amp with its richness and, yes, soul. The 80 is a very fine tube, being descendent of the venerable WE 274A. It's a little darker, slower in transient and almost as subtle as the WE 274B; through its DNA has inherited a bit of the old-world magic, that is soul. The ST 80 is still an affordable tube, significantly cheaper than Globe ones, and you should try it! So! The FU-50 amp with the 80 rectifier is my main amp.

• BRZ 6L6 SE Amp Well, SS rectified, so the WE 274B and 80 are out of the equation. In previous installments, I detailed the tube rolling (some with adaptors) I had done for the 6N2 and had mostly used it with my 6SN7/L7. WE 350B Then, about 2 weeks ago, I brought back from HK a pair of the WE 350Bs. Initially, replacing the Executone (Sylvania) 6L6GCs, I was shocked by how lackluster the sound was. I let them run for quite a while and still the sound lacked dynamics. Now, as the 350B is not quite a 6L6 type, I thought it likely needs more drive, which the 6SN7/L7 were not providing (less gain than the stock 6N2) . This is not just a matter of gain (which the preamp can make up), it's the swing required to drive the tube. Adaptor Woes So I sought to drive the 350Bs with my 12AX7 with the adaptor. NO Sound! After some tube swapping, it was clear that the adaptor now works only with 6V filament tubes (like 6CG7), and not with 12V filament tubes. For sure, a solder joint inside has gone bad. Desperate, I put back the stock 6N2 (Beijing). Voila! Sound was much improved! In fact, I was floored by how good the sound was! Yes, even with the lowly Chinese 6N2, surely not the best driver tube, the WE 350B showcased its famous qualities. Like the WE 274B and 300B, it lacks nothing: Rhythmic sophistication, tonal opulence, clarity, wide bandwidth and the most natural of dynamics. Simply put, I heard the famous WE sound, and this in an amp that costs less than 1/20th of the pair of tubes! This also attests to the reasonable quality of the output transformers, no mean feat in such a cheap amp. There are things to watch out for though. The 350B, here run in Ultralinear, surely draws more current than 6L6GC or EL34, though probably less than KT66, which I don't advise in this amp. The Power Transformer is a little hotter than usual, but not excessively so. So let's see how it fares in the long run. vs BRZ FU-50 and APPLause 300B Now, with the WE 350B on board, this little amp has become my Special Reference Amp here in SZ, its sound quality surpassing the BRZ FU-50 and APPLause 300B without WE 274B. Even with the 274B, the FU-50 and APPLause cannot completely overtake the 350B amp. This is an amazing development, which I had not foreseen. Now, you must read me carefully and I stress, this result can only be achieved with old-stock WE 350B, nothing else. Volume Pot Defect Well, small hiccups happen often with these cheap machines, no? Here again, it's the volume pot (remember my ETA Preamp, APPLause Amp), which I basically don't use actively, because I max it out and use a Preamp in front. However, when I change preamps, I turn the volume to zero. During one such swap, I heard crackling noise in the middle of the range, and it was repeatable - sure enough, the volume pot has turned bad. It doesn't affect how I use it, but the problem has to be rectified at some point. So, if you use it as an integrated, this may ruin it for you.

To sum up with some wine analogies: 1) without old-stock WE, a modern day amp can only be a good Pinot Grigio, whereas with WE it can turn into a real French Chablis (Americans beware, the word Chablis is too well known but too little understood stateside); 2) If you fail to properly utilize real WE (many people unfortunately) or perceive the real virtues of WE, then you probably prefer Australian wine to French wine, or prefer Temperanillo to Medoc.

To sum up with just one music analogy: Shostakovich Symphony No. 8 is almost mainstream repertoire now. While most performances are decent (sorry, a good Pinot Grigio), few really go to the heart of the piece. Compare your versions with the Russian National under Paavo Berglund (Pentatone) and within a few bars of the opening you shall (hopefully) know the difference (sorry again, between Pinot Grigio and Chablis, or between Temperanillo and Medoc). LOL!

UMI 2 Clarity Plus S2 version 优美 1:1 Isolation Transformer

Click pics to enlarge. Top, Mila's complicated yet interesting rig. Stacked Stirling 3/5A (15 ohm version).

Letter from Hong Kong (24-12): ELO on UMI 2 (latest Clarity Plus S2 version), Part I

Home (Salon) Visit: A Quaint Hair Salon

ElO's Review of UMI 2 Clarity Plus, Part II published 

ELO's Review of UMI 1

Editor: I  have written several articles on the slightly older UMI 2 (for a start, see here and here) but it's great to have now the initial evaluation of the latest v2 by ELO! See sections below for the subtle functional, cosmetics and sonic differences between my v2 and his latest v2).

The long awaited UMI v2 (UMI 2) has finally arrived thanks to icefox for organising the group buy! As I mentioned previously, 4 for me and my friends.

Round 1, Chez Mila's
We had arranged pickup at his freind Mila's shop on Tai Ping Road in Sheung Wan, a quaint street with a unique vibe rarely found elsewhere in HK. I used to visit the area for taking street photos or just hanging around. His shop has a back alley which is arguably the cleanest in HK, just perfect for food and wine gathering with friends!

Me and Jo arrived at the shop around 7 pm to pickup our orders, one each for me and Jo, another for Kwong and the last one for another Hifi friend "Seven" who is now using Infinity Renaissance 90 and Lab12 preamp, and I can't wait to hear his system with UMI 2 in the mix.

Mila's place is actually a hair salon with a small but dedicated space that houses a very unique system. When I first look at his setup, I know he is a seasoned veteran as his equipment are definitely far from main stream, kinda like mine even if our systems are very different in direction of preference. After a short conversation with him, I immediately realised that he is more of a music lover  than an "Effects Chaser", and we do share the same belief on how a good piece of music should sound like. Afterall, it's music that we are chasing, not effects!

Before I describe the sound from his setup, let me make a run down of his interesting setup! I categorize him as like me, an " Itchy Ass" kinda guy, meaning we don't want to be tied up by the mainstream stuff and instead like to find our own way. Thinking of my system, I suddenly realised that it comprises products made in Denmark, Sweden, Switzerland, UK, Japan, Mainland China, France, Germany and Canada!  In it I used 6 earth boxes to kill background noise in order to achieve a low noise floor. Diversity and open-mindedness and know-how is what a music/hifi lover should have in mind all the time.

R, Cyrus One atop EAR Phono Amp (chrome)

Setup Mila uses Bluetooth to stream Tidal music. He is also a user of  H10U (variously branded as Kyoeon 友昂, You Sheng Heng 友聲恆 or Wenliang), the el-cheapo little BT device which Kwong introduced to me and which I had written about in an early post [Editor: Before the H10U, ELO used the H-9A and reported on it.  I then got the H-9A courtesy of ELO, written up here; still has it in SZ. It should be noted that in ELO's reports, he preferred both the H9A and H10U to the popular and well-reviewed iFi Zen Blue - this is illustration of this Blog's independence from commercial influence!]. I believe it has become a popular cheap yet effective musical device! He then uses multiple  Reisong signal transformers and Douk E6 as preamp (his unit does not have any tube ringing as reported by DJ!) Then through a generic red/black wire to a MCM Reverse/Inverse RIAA device that converts the analog output of BT into an RIAA signal, which is then sent to his newly acquired "EAR 88P" (Chinese clone)! Then the "EAR" converts the RIAA signal back into analog signal and send the signal to the early version of Cyrus One Integrated Amp driving two pairs of Stirling 3/5A, stacked!! What an interesting setup and I noticed he must have followed this Blog. M told me originally the Reverse RIAA unit was acquired to run in the EAR phono, but it turned out the system sound had improved to a point that it has now become a pivotal piece in his setup. What a beautiful accident! Sound from streaming Tidal has surpassed his Turntable and he told me he mainly streams music through Tidal now.

Unboxing the UMI2 was such a pleasure. It came in a box only slightly larger than the unit, with a snug and tight fit. The unit itself is sturdy, with near-perfect metal works, like my UMI 1, not surprisingly.

Before UMI 2 We had an initial listening session with Mila's standard setup before moving on to implant the UMI2 and my Studer cable into the system. Overall sound was musical, and was already quite good. His liking is towards a meatier midrange and I can understand since stacked (15 ohm) 3/5As were used!! The stacked Stirling's seemed to add some heft in the lower octaves [Editor: interesting as a single pair of the Stirling 15 ohm tends to be lean in the bass; perhaps this is the result of stacked pair!]. The overall sound was very enjoyable and analog, without too many Hifi artefacts. His setup, with a listening distance of only 6 or 7 feet, tends to be more upfront and in your face compared to mine (which is like seated at the 8th row while his is 3rd row). 

One thing  that I really want to comment on: the whole system does not make me feel the shortfall of using a mass market Bluetooth receiver in streaming music. Back some time ago, for a while I had used BT to stream music; even now, I still use the BT that is built in to my Aiyima A08 Pro to stream TV and Youtube videos. They sound really good but ultimately fall behind the my proper setup using WEA. With the addition of UMI 1, I began to feel the gap widening between the two. Having said that, I'm still enjoying streaming Youtube music videos thru Bluetooth . 

+ UMI 2 Then we inserted the UMI 2 between the EAR and Cyrus. Upon turning up the volume, the sound had taken a change for the better. The bass dug deeper and with better definition, and imaging had tidied up without taking away the musicality. Musicians seemed to have drunk some Red Bull's, suddenly more alert and played at their highest level. Shades and Colours were fantastic, the flow smoother, more toned up and conditioned in body, all to my liking. Also, reverbs and decays were portrayed nicely in the background. Very enjoyable indeed given the listening in limited space (around 100 sq. ft I would guess).

Mila told me that his experience this night was very different from what he had heard from the loaner UMI 2 that DJ had earlier left to his HiFi buddies in HK to audition. M would have joined the group buy based on what he had heard on this night, which in his opinion was significantly better than his previous encounter. This begs the question: Perhaps this batch of transformer is better in quality? I'd think, like many smaller brands, the designer feverishly chases after improvements, so any upgrades will be implemented into the next batch without changing the version number. Therefore, it is no surprise that the most current batch's sound is superior to the previous batches! [Editor: Because of this I spoke to Engineer Li of UMI and clarified the differences; see below]

Detour: "Studer" Cable Then we added the "Studer" cable into the mix, we experienced a slight softening and increased smoothness in the music, For me the "Studer" may be a perfect match to take away some kick and coolness from my Aiyima A8 Pro and UMI 1, but on his setup, which is quite rich in body, the sound, though still very nice, turned in a slightly different direction! I tend to think that "Studer" cables is more suitable for cooler systems.

I think Mila's system definitely benefits by inserting the UMI 2 into the lineup. I think it integrates musicality and hifi values seamlessly! I'd also recommend trying out an earth box, as the background can become darker and more valuable music information can be retrieved! 

Next time, I will bring my Wattson WEA and my Entreq Earth box over to try - should be quite interesting! BTW, some days later I went again with my family for a stroll around the Tai Ping St and Hollywood Rd area and there's a shop selling a vast array of precious stones and crystals across the street from Mila's salon. I bought another pack of tourmaline and a piece of black tourmaline for Jo for his DIY earth box project.

Round 2, Chez Moi
Recently, for no particular reason, the sound suddenly suffered a setback, becoming less engaging and the soundstage seemed to have shrunken slightly. Except for switching cables for comparisons I had not altered anything. DJ reminded me that he had similar experience before and that it will go away eventually. I had my fingers crossed but, sure enough, days later the previous musical sound returned in full and now I'm back in Enjoy mode, yeah!

My latest setup with Crystals everywhere; for decoration purpose only, LOL. Also another newly acquired Entreq Minimus Ground box in the mix~

I have now replaced the UMI 1 with the UMI 2 in my system and will let it run-in for a week or so before I would switch it back to my UMI 1. DJ had said that the sound traits should be more similar than dissimilar, which is also my initial feeling, though I think the v2 has a slight edge. I am curious about the actual differences when UMI 2 is fully burnt in. It is already amazing!

Editor's Note on Latest UMI 2, Clarity Plus S2 version

Things moved fast! Before ELO penned this article (I thank him for his efficiency - must have been motivated! :-) as he has always been by UMI), very soon after the event chez Mila's, from icefox via Wechat (as E) I had already received pics of the latest v2 and texts on the proceedings. I was a bit taken aback as, aside from the purported sonic differences, there are certainly ergonomic differences between this latest v2 and my slightly older v2. So, I decided to clarify the differences and just now had a long wechat with UMI engineer, the perfectionist Mr. Li. Here are the essences on common as well as new features.

Note the Latest Version says Clarity Plus S2

The back of the Latest Version is also different! Phase Switch still there, but GONE is the 300/600 ohm switch (only 600 Ohm now). Now, for both channels there are XLR/RCA switches, which

have more functions than meet the eyes (see text).

v2 Latest Version (ELO's) vs older v2 (Editor's):

• Latest Version is Clarity Plus S2 This is silkscreened on the casing (see above pic; the previous v2 does not have this). ALL of ELO's comments above are based on this latest version! Mine is the older version without such words.

• Trannies (core materials etc) are the same.

• Circuit Board is the same, but re-purposed for the different Ergonomics [Editor: Wiring is certainly different and simplified].

• No more 300/600 ohm Choice. Only 1:1 600 ohm now. [Editor: IMHO, this is a good move as I had found the 300 ohm to be not much of a higher gain and pretty superfluous. The simpler the better].

• Phase Switch remains the same. [Editor: I have not written much on this feature before, so at the behest of Engineer Li some pointers here. On higher-end vintage equipment (Preamps, Phonoamps and DACs) there are often a Phase Switch to cater to those who care (even obsess) over phase. To put it simply, many older recordings, be it classical or jazz or whatever, were recorded phase-inverted. My experience is that in a good system it makes a difference to have the choice, but if one listens to a mix of the modern and vintage (as I), switching back and forth is barely practical even if the switch is at one's finger tip. On the other hand, if one deals with a Preamp that is itself Phase-Inverted, like the Goliath Douk E6 (referenced above), or most CJs, it pays to have a means to invert phase (instead of switching speaker cable polarities, which is my preferred way). With this statement, if you infer that the Editor thinks Phase-Correctness is more important in a Preamp than in a Recording, you are damn right. I'd not belabor the point here. Suffice to say, this is a useful feature].

• Ground (New Feature) This is fascinating. According to Engineer Li, with the removal of the 300/600 ohm switch a new function is added. This is because the Center Tap (300 ohm) is now permanently grounded, circuit board repurposed to the dual channel XLR/RCA Switches, etc. It's kind of confusing on the back panel, but follow me: 1) No matter where the Switch Position, both XLR and RCA will work properly; 2) XLR, with its carefully grounded planes and differentiation of ground and -ve return, of course should be switched to XLR (unless your system is uniquely queer, and I hope not); 3) RCA is grounded when switched to RCA position, but floated when switched to XLR position! This is of great use to the minority of people who experience hum with trannies [Editor: sorry to say, imho these people have usually committed basic errors in setup; analog SUT users should be familiar with this].

• DC 5V Input This remains the Same as in previous v2. USE According to Engineer Li, the 5V is used to operate the Switches, and not in the circuit path. The 5V has to be plugged in for: 1) both XLR Input and Output needs the 5V connected; 2) Phase Reversal needs the 5V. In RCA only mode Mr Li said, and as I've experienced before, even when the 5V is not needed, the 5V still changes the sound. Even a casual generic cellphone 5V source will make the sound just a trifle warmer. But my system does not need extra warmth, so I'm not necessarily keen, YMMV. Engineer Li stresses that a proper LPS 5V supply (they have developed one which we hope to test one of these days) makes a significant difference. Let's say this remains on our agenda. Since the feature is here, we should try it out! 5V Source For reasons unknown, rarely a certain 5V cellphone charger may not work. If that is the case, just switch to another one.

• XLR/RCA Conversion Same This can be easily accomplished, but 5V is usually needed. IMHO, it's more than worth its price even if used just as a two-way XLR/RCA Converter. Very versatile tool.

ELO again: Geez, there are so many combinations to try: 1) ground or float; 2) invert phase; 3) 5V input. This is gonna take some time and I hope I will not have listening fatigue.

I have created a test list, already added up to more than 80 tracks that have unique hifi attributes! Of course, I have to find them enjoyable musically as well!

Some photos taken recently👆

Ursula's Paddington, Sydney

Spaghetti with grilled "Pipa" Shrimp, slighlty grilled meat which taste so sweet and with a bouncy texture. The sauce is to die for!

Osso Bucco. No need to decribe the bone marrow is as good and lush as what you can imagine. Served on the side is super green and fresh cucumber with enchovies on toast which is equally as delicious~

Grass Fed Beef Steak on Chinese Chili Sauce (LaoGanMa) Excellemnt beef grilled to perfection and the chilli sauce did goes well with the steak!

Side dish with peach, ricotta cheese and Iberican ham

Scallop on a bed of Spinach. Such huge, fresh, sweet and tender Scallop!

Went to a nice French/Australian Cuisine with an Asian twist name Ursula's Paddington in Sydney. Highly recommended!