USB Cable Comparison Audience / Cardas / Purist / Stealth / Wireworld


I've been meaning to share my findings and impressions from a recent six cable comparison of USB cables.

What follows is a 'work in progress draft' that I will be finalizing and posting on a blogging site.

Getting this posted is a way of lighting a fire under myself so I get the write-up finalized. And to keep my promise to share my findings with a number of Audiogoners.

What is posted is the first phase of the 'shoot-out' involving four cables.

Please note:

- This is not finalized and I will be making edits, and adding information, etc.

- This is the first phase of the comparison.

- The second phase will be posted soon.
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The following cables were made available through The Cable Company's Cable Lending Program:


1. Audience Au24 SE Plus USB 1M ($895)

2. Cardas Audio High Speed Clear USB 1M ($400)

3. Purist Audio Design Ultimate USB 1.5M ($900)

4. Purist Audio Design 30th Anniversary 1.5M ($1,500)

5. Stealth Audio USB 1.5M ($850)

6. Wireworld Platinum Starlight 7 USB 2.0 1M ($700)


Actual length of each provided cable is listed in meters.

All prices are List in US$ for 1 meter lengths.

I personally selected four of the cables with the following exceptions: XX (for privacy) recommended the Purist 30th Anniversary. Peter Hansen of The Cable Co. recommended the Stealth.

The comparison was conducted in two phases. The first phase between Cables 1, 2, 3, and 6. The second phase between Cables 4, 5, and 6.

The first phase took place in October 2017 and the second phase took place in Oct - Nov 2017 with both phases taking about two weeks each.

General system information:


- Windows 10 Tidal / Roon - source / software.

- Small Green Computer sonicTransporter AP - Roon Core.

- Sonore ultraRendu with Uptone UltraCap LPS-1 [for Phase 1 cables] - Roon Renderer

- Sonore Signature Rendu SE [for Phase 2 cables] - Roon Renderer.


Schiit Yggdrasil Gen 3 USB > Pass Labs XP-20 > Pass Labs XA-30.8 > Tekton Design Double Impacts (4Ohm, upgrade package)


Each cable (considered broken-in per The Cable Co) was run with signal for about two days before critical listening.

Methodology was subjective listening for a length of time to familiarize myself with each cable and enjoy music before conducting A / B listening comparisons of short sections within each test track. A number of tracks were used (list to be provided later).

I realize the The Cable Company is a business concern but I have to acknowledge the benefit of their robust cable lending program. It has made cable choices easier, has taken the angst of a possible wrong choice out of the equation, and has led to much better and wiser final selections for me. I cannot overstate the value of taking advantage of it.

My need for a new USB cable was driven by the move from the Sonore microRendu and the Cardas adaptors I was using with it to the Sonore ultraRendu. The ultraRendu is not easy to set up behind the DAC (like the microRendu with the short adaptors is) which meant a USB cable of at least a half-meter to one meter length. I have also been upgrading my 2ch system over the past six months and felt it was time to test out other USB cables. Previously, Oyaide and Shunyata USB cables were in prior systems, however both are longer runs and I prefer having a 1M length for my current system.

I am familiar with both Audience and Cardas within my system. I am using and have been very happy with the Cardas Clear Reflection XLR ICs and Audience Au24 SX speaker cable.

I have not had prior experience with Purist, Stealth or Wireworld, though I have followed reviews and owner comments on Wireworld cabling.

This was my first lengthy and truly in-depth cable evaluation and also the first one that involved so many cables. Prior to this I had compared two cables at a time.

This was frustrating and time-consuming and early on, a very boring process. I also felt the urge to throw in the towel after the first few days.


BUT, BUT, BUT once I got into it, it was a very good experience and I have to say a terrific learning and growth experience for me. It has also furthered my understanding of audio and sound quality. In the end, it was a very rewarding exercise for me and retrospectively, time very well spent.

In a way, actually in much more than a way, it has brought me closer to my system --- in understanding it --- appreciating it --- enjoying it.


First phase ranking and results:

1st: Wireworld Platinum Starlight 7

2nd: Audience Au24 SE Plus

3rd: Purist Ultimate

4th: Cardas High Speed Clear


CAVEAT, CAVEAT, CAVEAT: This is in my system/room and based on my hearing abilities and preferences.


The caveats are important because after listening to all four of these cables, I can see why someone would pick any one of them for their system and needs and budget and be satisfied with the performance.


The Cardas was easy to identify as the fourth place finisher because the other three cables had a greater sweetness and refinement to their sound, greater air and bloom, and because the Cardas did not stand out based on any particular strengths, which the other cables exhibited. Some will value it’s consistency in not having any pronounced strengths. It’s Value = Quality/Price is high since it has the lowest price in the group tested.

Please note that this is the High Speed version which adds a ’special high performance data cable using silver-plated conductors’ per Cardas.


The Purist and the Audience were closer in sound signature to each other. With the Audience being closer to the Wireworld in it’s capabilities than the Purist.


Both cables are Fuller, Rounder, and Mid-Range Centric and came across more Forward with vocals.


What follows is relative to the Wireworld cable as it excelled in attributes over the Purist (to a greater degree) and the Audience (to a lesser degree).


Please know and make note that I’m not saying any of these cables are, for example, NOT detailed, or NOT transparent, or XXX (fill in the blank). This is a relative comparison.


I found the Purist to be lightly veiled, with less definition to the leading edge of the music, and it sometimes felt slow in timing. Transparency and resolution are not as strong as the Wireworld and micro-detail is lost, again relative to the Wireworld cable. Separation of musical information was not as strong as the Wireworld. It does not provide a window into the depths of the music like the Wireworld does.

It’s strong with the already mentioned fullness and roundness attributes as well as with the air and bloom it presents. Bass was the ’tubbiest’ of the four cables. I also found some inconsistencies with sound stage presentation, and at times larger than life images. I liked this cable enough to be open to considering the step up in the Purist line, but it was, relatively speaking again, the most inconsistent cable of the four.

I considered the possibility of it being somewhat defective or not run in completely. However, after hearing the 30th Anniversary version, I have to say that the cable was likely good and it’s performance is what it is, based on the house sound I was able to determine from the step up Purist cable.

If this sounds like damning information, it is not. Like I said, I was intrigued enough to be open to the 30th Anniversary version. I will say it really comes down to your system, your goals, and your preferences. I’m sure there are fellow audiophiles that are quite happy with this cable.


The Audience Au24 SE Plus (please note that this is the Plus USB cable which, per Audience, is an improvement over the SE version).


This is the first cable of the four that I really liked. The easiest way for me to describe it is that it brings most of what the Purist does well, without overdoing it as much, and it gets one closer to the Wireworld cable’s strengths.

It is more relaxed than the Wireworld.

It presents more musical energy than and with better definition than the Purist. It remains refined and delicate (not to the extent of the Wireworld but more so than the Purist) with great air and bloom. It is less detailed than the Wireworld, though it gets closer to it than the Purist.


If you are looking to split the difference between the Purist Ultimate and the Wireworld Platinum Starlight 7 the Audience Au24 SE Plus cable is the way to go.


The winner of the Phase 1 shoot-out is the Wireworld Platinum Starlight 7.


This is a well reviewed cable. On the flip side, those who have owned / demo’d it and have had concerns point to it being bright and lean and being a cable that requires careful system matching.


My impressions here are with the Sonore ultraRendu in the system (I’m giving something away here, but it is important to note that this cable was also evaluated with the Sonore Signature Rendu SE with even better outcomes which minimize or eliminate some of the weaknesses listed here).


For me, relative to and versus the other cables, the Wireworld cable nailed timing, clarity, resolution, detail, micro-detail, venue and ambient cues and information, and refinement. There is a delicate purity to it’s presentation that I noticed across tracks in combination with and contrast to a robust and engaging presentation of musical energy.


It offers a higher level of insight into the music and separates the musical information better than the other cables. Control is taut and better defined throughout the frequency range and the bass delivered is of much better quality and impact than the other cables. To my ears and assessment, timbre, tone and weight sound more ’real’ and palpable. The Wireworld also extends higher than the other cables, likely due to the level of transparency and resolution offered.


With the Sonore ultraRendu, it does have a leaner presentation than the Audience and the Purist. With certain recordings the sound was lightly fatiguing. It is less ’sweet’ sounding than the Audience and Purist cables. To my ears, it is the more honest cable in this comparison. For me, it is also the more musically satisfying cable of the four.



I agree about the big CAVEAT. The Yggdrasil has a less than optimal digital implementation. So your findings may be entirely related to digital problems of the DAC which are influencing your cable preference. If your components worked robustly then digital cables would not have an effect.

With such a long list of exhorbitantly expensive USB cables, you might consider upgrading components as a first step towards eliminating how digital cables affect your component performance.

According to Stereophile:

"Tested for its rejection of word-clock jitter with a 16-bit J-Test signal, the Schiit Yggdrasil had some problems"

Read more at https://www.stereophile.com/content/schiit-audio-yggdrasil-da-processor-measurements#LlqYiPu8IobviLI...

and

"While the processor’s analog circuitry is superbly well designed, its digital circuitry appears to have problems with high-level, high-frequency tones, and with the LSBs of 24-bit data"

Read more at https://www.stereophile.com/content/schiit-audio-yggdrasil-da-processor-measurements#LlqYiPu8IobviLI...
Hi David,

Nice writeup. Looking forward to part II.

I agree with Shadorne that USB cable preference can change according to the DAC it is paired with. The Yggdrasil is reported to be relatively laid back sonically so the more aggressive sounding USB cables (WW Platinum Starlight 7) will indeed provide a nice synergy if that is true. The rest of his post is closed-minded nonsense reflecting a lack of actual experience with different USB cables.

Dave
Interesting, I know someone who had the Purist and likes the new soon-to-be released SOtM USB cable the best.  He also preferred the Uptone USPCB to the Phasure Lush.