Showing posts with label Brand-Unitek. Show all posts
Showing posts with label Brand-Unitek. Show all posts

17 February, 2023

Canare L-2B2AT Belden 8451 1309A Rean Unitek

Click pics to enlarge. The Preamp that necessitated me to write this article first. Belden 8451 in and out. Behind is the 6J4/6P3P Preamp.

Taobao Talk: Cheap Cables
Letter from Shenzhen (23-2): Wired!

Amendment 2/20/23: In haste of editing, I left out some important sentences in my writing on Sommer. Duly corrected. The new sentences are in italics.

I actually wanted to write about the very cheap Preamp pictured above. But the thing is, the story of this Preamp has an interesting twist behind it that involved cables. So, to prep for that, I’m “forced” to write about the cables first. So be it, it’s time anyway.

The story about my cables here in China is pretty much similar to tubes. When I first bought the Aiyima T9, I had barely enough cables to connect things, just making do. It was after I revamped my main listening room (the study, chronicled here) and acquired the Beydas LS3/5A that by necessity I started to buy things, including cables. There may be minor overlap with my previous diary-like articles chronicling my journey here, so bear with me.

My reasoning for choosing the cables I did was similar to what I did for tubes (explained here). Here in China, I don’t have my go-to cables, none! All I have are leftovers (described in my Aiyima T9 article). No Gotham (GAC-2,4, DGS, 2111, 50025,40, etc); no Belden (9497, 1810A); not even Mogami (2534, 49). I’d not like to buy them again. And whatever has to be cheap. And are they cheap and good!

Note that TB prices vary a bit, and some of the prices I got might have been a bit lower than now as I did order quite a few things during 11.11 and 12.12. The difference most of the time though is not significant.

https://m.tb.cn/h.Un3PHPh?tk=sJlLdSfydjW

Canare L-2B2AT This was the first one I got. At the ridiculously low price of RMB 3.70 per meter, I got 15 m, and wired my whole system basically with it. This is a slender, soft and very well-made cable. I had the slightly more expensive 2T2S before (here) and the 2B2AT surprisingly has more resolution. In fact, I was very satisfied. Good and clean transients, very even tonal balance and good rhythm. I previously also had another pair of Canare cables, the ones that came with my Softone CDP, a coaxial cable that sounds close to the 2T2S, both on the warm side. The L-2B2AT is to be preferred.

Recently, I opened up the BRZ FU-50 amp, and was delighted to find that it uses the L-2B2AT as signal cable! Cheap, but good! I shall one day re-wire my 6J4/6P3P preamp (here) and perhaps I shall use this cable.

https://m.tb.cn/h.UNLIl0k?tk=Q9HjdhIUGih

Belden 8451 I was happy with the Canare but, one day, as I was surfing TB, I accidentally came across my old friend Belden 8451. And man, this one I know well! Although I really haven't written about it, in NYC I have used it as interconnect as well as signal and hook up cables in various projects (serach 8451 in the blog if u like). I know its sound shall be a little more textured than the Canare I’ve been using and shall benefit the FU-50 amp (whose sound is a little leaner than the APPLause 300B). At the even lower price of RMB 2.80 per m, I ordered 17 m. In fact, if I had encountered it before, this would have been my first buy. Too bad I didn’t think of looking for it. In fact, this is an obscure Belden that I’m surprised to have found on TB. One bad thing about TB algorithm is that the bigger and more trafficked stores and items show up much more often than smaller ones (browsing gets boring after a while); perhaps there is a TB fee for giving stuff prominence too. So, sometimes it’s a matter of luck. The inner construction of the Canare L-2B2AT and Belden 8451 are very similar, but the skin of the Belden is quite a bit stiffer and more unwieldly (as per usual). This is genuine Belden.

For the 2 above cables, I’d recommend you first try out a little of both and compare before buying larger quantities.

A Surprise and Dark Horse Those 2 are what I mainly use for interconnects. I thought everything was well, but audiophiles always get surprised, right? Well, as ELO repeatedly waxed lyrics about his “Studer” cable (latest here), a reader astutely commented that it looks like the Sommer SC Classique. We all dived in and did some detective work. I looked at the SC Classique: it is a 1 conductor coaxial cable and cannot possibly be used as XLR (the "Studer" comes in both XLR and RCA versions). I asked ELO to take a pic of the connector with shell removed. I then identified it as most likely SC Club Mk II. Now, this is a 2-conductor cable and comes in both naked and tweed-clothed versions, the latter similar in looks to the SC Classique. My friend Seng and I looked at the spec’s and found the 2 versions to be identical though the naked version is substantially cheaper, and I managed to source it here. It proves very good. Sorry, this is a bit of a teaser, but full report shall come later from ELO and his friends (I'll chip in).

https://m.tb.cn/h.Un3lc94?tk=QM76dSfzSTY

Belden 1309A This is the curiosity. There are variations. I actually got 5m of the thicker 2.5mm x2 version before I even got the Canare loudspeaker cables I recommended previously (here). During 11.11, when I got the bargain Weiliang LPS (here), I noticed they also have the 1.5mm x2 version, and I got another 5m for RMB 9.80 per m. This was to enable me to bi-wire the Beydas LS3/5A.

The Canare’s (2 or 4 conductors) are faster but have less depth and flesh than the Belden. The Canare’s fare better with my floorstanding Sansui. But with the Beydas, I prefer the Belden for its organic sound. Bass goes deeper and is more tactile. This does come at a cost, as the Belden is a little darker sounding. In fact, aurally it reminds me of my go-to bi-wire cable, the Belden 1810A. They even look and handle similar.

But! Big Issue! If you look at official info of the Belden 1309A, it doesn’t look remotely like this cable. Plus, there is only one official 1309A, but here there are 3 versions of this “1309A” (professional cable companies won't catalogue as such). Beside the two I mentioned, there’s even a 4-conductor one! It is known that there are counterfeit Belden cables around, so like ELO’s mis-appropriated “Studer”, this one is better designated as “Belden” and “1309A”. But, if you ask me, it sure sounds and feels like Belden (especially the darker 1810A), and I do recommend it for people whose systems are too bright.

https://m.tb.cn/h.UMIgntb?tk=8m95dSfShNW
Rean RCA Connectors For RCA connectors, there is no greater bargain than Neutrix subsidiary Rean, which I have long used. There are high quality gold-plated ones as well as non-gold-plated ones. Both are very good, but personally I’ve always tended towards non-gold ones (nickel-plated would be even better). At RMB 2.55 per connector, I bought dozens.

https://m.tb.cn/h.UnWCHh2?tk=WER1dSf8kBU

Unitek USB Cable Since we are on cables. For the longest time, I have used Unitek (read this article where it went against another supposedly budget champ, Belkin). For the longest time I used my 1m USB B to Mini with my Meridian Explorer. And then when Aiyima T9’s stock USB cable, which looks good, proved unsatisfactory, I resorted to the Unitek again, with adaptors (here). Then I got some B to A from the official TB store in Shanghai. The only problem is that the shortest length (reason is people buy them as Printer Cables, which are usually longer, even very long - the hifi use is just incidental) I could find at a good price is 1.5m (I’d prefer shorter 1m), for a measly RMB 5.80. It proves very close in performance to my go-to 1m + adaptors. Some of my other devices, like my 1-bit TDA1305 DAC, came with USB cables. I always tried them out, but none can get close to the Unitek. Highly recommended!

Aside from the Sommer, there are others coming up. Reader Attila recommended the Belden 8428 and I procured some. I was shocked how unwieldly its construction is (the cotton strands are positively nuisance), and so I haven’t terminated it. Next time...

04 February, 2015

Brief Reviews: Five USB 2.0 A to B Cables

Copartner Usb A/m To Usb B/m Cable E119932 Awm 2725 80c 30v Vw-1 28awg Ll84201 Csa Type Awm I/iia 80http://i00.i.aliimg.com/img/pb/713/105/913/913105713_639.jpgClick pics to enlarge: L, Unitek; R, Copartner
 
Brief Reviews: Five USB 2.0 A to B Cables from Unitek, Copartner, Sunf Pu and Belkin
Talk CAS/Talk Cables - USB Cables







Revised March 25, 2015 (Friend Nelson's evaluation added; see Sonics Part II below)


My readers know that I do not go to heroic lengths for my desktop but, excited by the recent changes made to my desktop, on a whim I put this quintet to test. The current desktop configuration: Microsoft Windows 7-iTunes-USB-Micromega MyAmp-Sparkler S301 (pic at bottom of article).

The Cables:

Gold Series Hi-Speed USB 2.0 Cable - HeroImage
  • Belkin Gold This is the only well known member of the trio here, and long a TAS favorite. The official website lists it as Part Number F3U133, but you could buy it substantially discounted at Amazon and other sites. Only problem is, it is commonly available only in 6-, 10- and 16-ft lengths (designated -06, -10 and -16), not the shorter 3-ft/1 m preferred by audiophiles (I agree longer ones sound worse usually). Belkin apparently also makes a 3-ft version that bears the same Part Number F3U133, followed by -03 (like this one sold at Amazon and others), but for some reason this one does not say "Gold". Confusing? You bet! Mine is 6-ft, marked in gold letters and clearly labelled "Gold Series".
  • Belkin Hi-Speed 2.0 Shielded My grey 10-ft cable seems to be an old model. It is rather thin, marked E330337 Style 2725, and is 28 awg + 26 awg. These spec's don't match anything I can find on the net.
  • Unitek 科盛國際 This is a Hong Kong company (official site) without great US presence. Even in HK, the USB cables are not widely available. Try Wanchai 298 Computer Center (where my friend Nelson bought one for me) or Mongkok Computer Center. Mine is 1.8m, model Y-C419 (3m and 5m are available as -C420 and -C421). This cable (pic above) is unusual in that it has a brown transparent sleeve, through which one can see its braided shield.
  • Copartner 聯穎科技 This is a brand from Taiwan (official site) that is not hard to find in the US. Mine is marked E119932 Awm 2725 80c 30v Vw-1 28aw, same as this one that is available at Amazon and PC World. Mine is 10-ft, bought for a dollar or two from (I think) Parts Express, one of those Buyout Specials (pic above).
  • Sunf Pu 松普科技 Again, this is a brand from Taiwan (official site), though it seems its products do not have a good US presence. My 6-ft model is actually an old Hewlett-Packard cable OEM'ed by Sunf Pu which I found in my drawer, marked E132276-A 24/28 AWG CSA LL-64151-A.
Sonics Part I (my quick evaluation)
  • Best sound was obtained by the Unitek, Belkin Gold and Sunf Pu (though marked HP). They sound somewhat different from each other. The Belkin Gold is quite smooth, the HP a little crisper, and the Unitek somewhere in between. I ended up using the Unitek now. Highly recommended for HK readers.
  • As these are 6-ft in length, it DOES seem possible that USB cables should not be too long. The longer (10 ft) Belkin Hi-Speed and Copartner were obviously inferior, but to be fair, it would be nice to test out their 6-ft counterparts.
  • I am also going to let my friend Nelson , who uses exclusively CAS, to test out these for me, so the article may be updated when his verdicts come in..
 Sonics Part II (Nelson's evaluation, and editorial thoughts in italics)
  • Nelson listens almost exclusively to CAS, Windows/iTunes to Micromega MyDAC, Counterpoint electronics to Haydn Grand SE. I think he spent more time than I did in his comparisons (His CAS should not be too different from mine, given his Micromega DAC!).
  • Similar to me, Nelson picks Unitek and Sunf Pu (HP) as the best of the lot, with Unitek the winner. Different from me, Nelson regards the Belkin Gold as the worst performer, kind of "foggy" in his own words (I can understand this, "smooth" (my term) and "foggy" (his) are but two sides of the coin). In his opinion, the Belkin Hi-Speed and Copartner performed somewhere in between.