Audio note ISIS vs Furutech FP TCS-31

kiwibirch

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May 31, 2024
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Has anyone compared or heard the Furutech vs the AudioNote ISIS Mains cables?

I'm looking at either the ISIS with furutech R connectors or Furutech FP-TCS31 with the same connectors.

cheers
 
Curious to know as well. Looking to try the ISIS power cord and XLR.
 
I used to have the Isis in one of my smaller systems, although it just had the regular silver plated AN connectors (unless those are made by Furutech, I don't know) and it was a great budget cable. I think it was $500ish back then, always seemed like a great balance between resolution and density.

I tried lots of alternatives (many more expensive) in search for an upgrade, nothing beat it until recently. The Veritas Cables Aeris is even more affordable than the Isis, and sounds similar but to my ears even better. Very rich, meaty sound which still has great detail retrieval plus a nice open, spacious feel. I've got various more expensive cables that do some things better but very few of them are as well rounded as the Aeris or the Isis.

Haven't heard the Furutech you mentioned so I can't comment on that particular AC cable. I have quite enjoyed most of the Furutech products I've tried over the years but that's as far as I can go on that.
 
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@V-Fi Thanks. I just got an ISIS power cord on a loan demo and my experience mirrors yours. really enjoyed my time with it.

For the money, it does things better than some cables I demoed up to $5000. It certainly made the most dramatic impact when plugged into my Benchmark AHB2 power amp. My system is comprised of an MSB Premier DAC, Antipodes CX and the Benchmark.It always sounded a bit too polite.

The Isis had a raw quality that livened things up and gave a really good solid bass plus a very satisfying mid-bass punch.

The only minor tradeoff i had was that it made some vocals sounded a bit sibilant. And this is really the exception more than anything else.
 
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@shawnf Yes, "raw" is a good way to put it. I guess that word could be taken as a negative but in this case it is used in the positive way, like a "raw" live performance with magical qualities even if the acoustics aren't studio perfect.

I wish Audio Note cables weren't so popular with counterfeit cable makers. They make nice interconnects at a good price too, but I would be scared to purchase anything but a new set from and authorized dealer.
 
@shawnf Yes, "raw" is a good way to put it. I guess that word could be taken as a negative but in this case it is used in the positive way, like a "raw" live performance with magical qualities even if the acoustics aren't studio perfect.

I wish Audio Note cables weren't so popular with counterfeit cable makers. They make nice interconnects at a good price too, but I would be scared to purchase anything but a new set from and authorized dealer.
Yes - I'm planning to demo a pair of Isis XLR interconnects next. Currently using the Audio Envy XLRs from my Premier DAC to the AHB2. Good synergy especially with the ISIS power cord in the mix.

The interconnects are a bit pricier than the 1.5m power cord i tested but if I'm satisfied with the improvements, I will likely buy a pair too.

At the moment, I'm locked on the ISIS power cord :)
 
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I love unshielded cables, that is, wherever an unshielded cable can go (environment that isn't sensitive to noise), I seem to prefer unshielded. What's special about AN Isis is the holographic and focused soundstage. As to tonality, I understand why some call it "raw", I find it spot on, if without the lusciousness of tone that Audio Note or Kondo silver cables bring to the table. AN Isis is not a typically "audiophile" cable in the sense that it does not appear to do much to the sound compared to e.g. Furutech that to me sound like tone controls. Impressive tone controls, to be sure, had three different Furutech models here, including the DPS-4.1, couldn't get over the coloration, which I came to the conclusion may be helpful in some solid-state systems, but with tubes, something wide-band and fast works better. Compared to Furutech, Isis is lacking any extra fat or weight, it's more of a sprightly, lively and lifelike sound. It also seems to sound fractionally less loud in volume than those Furutech (or for that matter, Yarbo SP-1100PW). That brings me to tone: it's not as gorgeous as the aforementioned pure silver variants, nor even as "beautiful" as the less expensive DH Labs Power Plus (another unshielded copper litz cable, and best-buy in its category), but the DH Labs sounds comparatively forward and blurry in comparison (so if soundstage depth and imaging focus is the priority, the DH Labs isn't ideal). The Isis won't exactly strip tone of its beauty, it's just that it emphasizes a lean and fast sound, whereas there's something positively gorgeous about the DH Labs that one may be tempted to call natural and unforced, on the downside, it's slightly tame in comparison to the Isis, and again, soundstage depth and imaging focus is nowhere near (that is where Isis excels). I'm drawing this comparison because despite my preference for the open, unforced and natural sound of unshielded cables, I haven't yet found an affordable or even semi-affordable one that'll work in any system, and the DH Labs comes closer to a universal recommendation than the more unforgiving Isis (at the price, the DH Labs Power Plus is quite the entry-level no-brainer). The Isis can't be recommended to be used in bright systems (not because it emphasizes brightness, but because it won't hide any nasties). That brings me to the importance of and synergy with plugs: I use mine with Wattgate AG (phosphor bronze with silver plating), a recommended combination (alternatives include Oyaide C-037, phosphor bronze with silver/rhodium plating for even "perkier" transients, or Oyaide C-079, phosphor bronze with gold plating that's said to accommodate solid state as gold plating tends to make for a less revealing and more forgiving sound). I'd be curious to try a pure silver plug and IEC, but those tend to be disproportionally priced. AN Isis a relatively light, thin and flexible cable that may well be the easiest to DIY of any cable I've ever used. Note I can't stand the sound of rhodium, that metallic "ping" to the transient attacks may grab the attention of the listener at first, but gets fatiguing after a while. AN Isis sounds detailed and coherent, but neither warm nor thick nor smooth - a fine line that the choice of plug and IEC can easily make or break. It's amazing to me that power cables and plugs make any difference at all, but over the years I've come to the conclusion that it's rather difficult to find any that'll do no harm (e.g. while stock cords sound congested and harsh, shielded cables anywhere near the same price category tend to sound reigned in, and ones that sound similarly uncolored and dynamic tend to be expensive, not to mention ones that sound as coherent and better). All in all a relatively affordable power cable (that's well-made, but doesn't look expensive, certainly not like audiophile jewelry) to recommend for systems that tonally don't need help or makeup.

Greetings from Switzerland, David.
 
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I love unshielded cables, that is, wherever an unshielded cable can go (environment that isn't sensitive to noise), I seem to prefer unshielded. What's special about AN Isis is the holographic and focused soundstage. As to tonality, I understand why some call it "raw", I find it spot on, if without the lusciousness of tone that Audio Note or Kondo silver cables bring to the table. AN Isis is not a typically "audiophile" cable in the sense that it does not appear to do much to the sound compared to e.g. Furutech that to me sound like tone controls. Impressive tone controls, to be sure, had three different Furutech models here, including the DPS-4.1, couldn't get over the coloration, which I came to the conclusion may be helpful in some solid-state systems, but with tubes, something wide-band and fast works better. Compared to Furutech, Isis is lacking any extra fat or weight, it's more of a sprightly, lively and lifelike sound. It also seems to sound fractionally less loud in volume than those Furutech (or for that matter, Yarbo SP-1100PW). That brings me to tone: it's not as gorgeous as the aforementioned pure silver variants, nor even as "beautiful" as the less expensive DH Labs Power Plus (another unshielded copper litz cable, and best-buy in its category), but the DH Labs sounds comparatively forward and blurry in comparison (so if soundstage depth and imaging focus is the priority, the DH Labs isn't ideal). The Isis won't exactly strip tone of its beauty, it's just that it emphasizes a lean and fast sound, whereas there's something positively gorgeous about the DH Labs that one may be tempted to call natural and unforced, on the downside, it's slightly tame in comparison to the Isis, and again, soundstage depth and imaging focus is nowhere near (that is where Isis excels). I'm drawing this comparison because despite my preference for the open, unforced and natural sound of unshielded cables, I haven't yet found an affordable or even semi-affordable one that'll work in any system, and the DH Labs comes closer to a universal recommendation than the more unforgiving Isis (at the price, the DH Labs Power Plus is quite the entry-level no-brainer). The Isis can't be recommended to be used in bright systems (not because it emphasizes brightness, but because it won't hide any nasties). That brings me to the importance of and synergy with plugs: I use mine with Wattgate AG (phosphor bronze with silver plating), a recommended combination (alternatives include Oyaide C-037, phosphor bronze with silver/rhodium plating for even "perkier" transients, or Oyaide C-079, phosphor bronze with gold plating that's said to accommodate solid state as gold plating tends to make for a less revealing and more forgiving sound). I'd be curious to try a pure silver plug and IEC, but those tend to be disproportionally priced. AN Isis a relatively light, thin and flexible cable that may well be the easiest to DIY of any cable I've ever used. Note I can't stand the sound of rhodium, that metallic "ping" to the transient attacks may grab the attention of the listener at first, but gets fatiguing after a while. AN Isis sounds detailed and coherent, but neither warm nor thick nor smooth - a fine line that the choice of plug and IEC can easily make or break. It's amazing to me that power cables and plugs make any difference at all, but over the years I've come to the conclusion that it's rather difficult to find any that'll do no harm (e.g. while stock cords sound congested and harsh, shielded cables anywhere near the same price category tend to sound reigned in, and ones that sound similarly uncolored and dynamic tend to be expensive, not to mention ones that sound as coherent and better). All in all a relatively affordable power cable (that's well-made, but doesn't look expensive, certainly not like audiophile jewelry) to recommend for systems that tonally don't need help or makeup.

Greetings from Switzerland, David.
Thanks for sharing @acousticsguru Are you using the ISIS on digital sources or analog components like amps? I found the ISIS power cord made a bigger difference when plugged into my AHB2 amplifier.
 
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Thanks for sharing @acousticsguru Are you using the ISIS on digital sources or analog components like amps? I found the ISIS power cord made a bigger difference when plugged into my AHB2 amplifier.
If you want to mix and match, I'd use them on analogue equipment and maybe shielded on e.g. digital source equipment. I use it for my DAC in one system as well, but have tried mixing with shielded on the purely digital units (that unlike a DAC don't have any analogue circuitry in them). Having said that, there's something to be said in favor of using the same throughout a system. Try, as an experiment, swapping cables in a seemingly remote part to see if it affects the sound (it may or may not, in either case, good to know - I've sometimes been surprised where something does or does not make a difference, let alone is a worthwhile improvement, sometimes seems to defy logic…). Should perhaps add that I sometimes wonder if power cables aren't overrated, and plugs underrated, but again, there's no telling without trying. After all, one would expect none of it to make any difference at all, and yet, more often than not, it does…

Greetings from Switzerland, David.
 
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Thanks for sharing @acousticsguru Are you using the ISIS on digital sources or analog components like amps? I found the ISIS power cord made a bigger difference when plugged into my AHB2 amplifier.
Does it do what I described, or do you get a different "sound profile"?

(Note it doesn't quite make sense to me that power cables have "a sound" - I've simply learnt to accept the fact that they may affect the sound of a system, and that it would be narrow-minded to not, at the very least, try if replacing stock cables is worthwhile, as I tend to find those downright nasty…)

Greetings from Switzerland, David.
 
Does it do what I described, or do you get a different "sound profile"?

(Note it doesn't quite make sense to me that power cables have "a sound" - I've simply learnt to accept the fact that they may affect the sound of a system, and that it would be narrow-minded to not, at the very least, try if replacing stock cables is worthwhile, as I tend to find those downright nasty…)

Greetings from Switzerland, David.
@acousticsguru I had to return the ISIS to the dealer.

I am currently demoing a Hijiri Nagomi power cord. I placed my experience of this cable on the site too.

In short, it's slightly more refined that the raw sounding ISIS and with slightly better spatial information. But the ISIS leads on value at only 1/3 the price of the Hijiri Nagomi.

Both cables are on my shortlist but yet to make a decision.
 
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