Anybody compare Shunyata Alpha USB against Purist Audio Diamond Rev USB


New Member
Mar 17, 2021
I currently own the Shunyata Alpha USB between my Innuos Zen mkIII and Chord Qutest. I use all Shunyata Venom NR power cords, however I use Purist Audio speaker cables and interconnects and absolutely love what they do for my system. The Shunyata Alpha USB has been a wonderful cable as well, but after some recent new additions of Purist Audio interconnects making a huge impression on me, it makes me wonder what the Purist Audio Diamond 30th Anv USB would sound like against the Alpha. Anybody had the opportunity to compare the two?
You didn’t ask about the Sigma USB, but I just wanted to mention that it’s a big step up from the Alpha. Same price as the Purist cable you mentioned. I do like your thinking though about using the same brand throughout. It’s been my impression that this can achieve better results than mixing brands - depending on the brand. Your best bet would be to audition the Purist yourself if you can to see if there is a greater synergy with your other Purist cables. The one thing that I really like about sticking to a single brand is that the benefits stack up predictably as you move up to better models.

On the other hand I should mention that Shunyata has really been on a roll lately with both their v2 power cords and digital cables. The Sigma USB will blow your mind.

(And yes I have not been able to stick to a single brand throughout as my amp requires MIT speaker cables, but they haven‘t seemed to get in the way of me appreciate the Shunyata positives)
  • Like
Reactions: JM1911
I have a first Gen Sigma and I quite like it. I also have a Stealth Audio USB-T Select V3 cable that has the Sigma sitting in its container.

Just for giggles I bought an inexpensive Inakustik Reference USB 2.0 cable and it is a nice surprise for $340. It can stand with the big boyz.

If you are a loyal Shunyata owner you should look at the V2 Alpha minimum, and look higher if you can.


About us

  • What’s Best Forum is THE forum for high end audio, product reviews, advice and sharing experiences on the best of everything else. This is THE place where audiophiles and audio companies discuss vintage, contemporary and new audio products, music servers, music streamers, computer audio, digital-to-analog converters, turntables, phono stages, cartridges, reel-to-reel tape machines, speakers, headphones and tube and solid-state amplification. Founded in 2010 What’s Best Forum invites intelligent and courteous people of all interests and backgrounds to describe and discuss the best of everything. From beginners to life-long hobbyists to industry professionals, we enjoy learning about new things and meeting new people, and participating in spirited debates.

Quick Navigation

User Menu

Steve Williams
Site Founder | Site Owner | Administrator
Ron Resnick
Site Co-Owner | Administrator
Julian (The Fixer)
Website Build | Marketing Managersing