SoundStage! Ultra | SoundStageUltra.com
Network Hub Buying Guides Newsletter Signup Advertisers' Index
Shunyata Research
Shunyata Research
Saturday, July 19, 2025
  • Equipment
  • Features
      • Back
      • Opinion
      • For the Record
      • In Good Company
      • Recording of the Month
      • General Interest & Interviews
      • Off the Cuff
      • Richard Freed's Keepers
          • Back
          • UltraAudio.com Articles (Archived)
          • SoundStageHiFi.com (Current)
  • TWBAS
  • Videos
  • Our Sites
      • Back
      • SoundStage! Network (portal)
      • SoundStage! Access
      • SoundStage! Australia
      • SoundStage! Global
      • SoundStage! Hi-Fi
      • SoundStage! Life (podcast)
      • SoundStage! Simplifi
      • SoundStage! Solo
      • SoundStage! TV
      • SoundStage! Ultra (here)
      • SoundStage! Xperience
Vitus Audio
IsoAcoustics Reveal Every Detail
Dutch&Dutch - Hear Everything
Hegel

Legacy link:
legacy_200w
This new site was launched in July 2010. Visit the older site to access previous articles by clicking above.

Bryston
Gryphon Audio Essence
Wilson
Gryphon Audio StandArt
Wilson

Equipment Reviews

Ultra Audio's site platform was changed in August 2010. For equipment reviews previous to that, use this link to transfer to the old site.

Stanford Research Systems PERF10 Rubidium Audio Clock

Written by: Howard Kneller
Created: 15 December 2015

Reviewers' ChoiceIn audio, a clock determines the times at which digital audio samples are converted into analog. Messing up this timing condemns the music to digital hell, where jitter causes distortion and harshness in music. Thomas Hobbes said that “Hell is truth seen too late.” For audio purposes, I suggest that hell is truth seen too early or too late.

Think back to the days of hand-cranked film viewers. Because it was extremely difficult to achieve a constant playback speed, the films looked jerky, unnatural, jittery. A similar phenomenon occurs when the conversion of a digital to an analog signal is imperfectly timed.

Read more …

Wadia di322 Digital-to-Analog Converter

Written by: Jeff Fritz
Created: 01 December 2015

Reviewers' ChoiceThese days, to sell their products, makers of high-end audio gear must have a hook: something that makes the consumer choose their widget over competing widgets. Maybe that hook is a famous designer, or a company history long established and revered by audiophiles, or performance and/or build quality that far exceed what might be expected for the price -- or just clever marketing. But whatever the hook, it won’t work if it’s a secret. Companies have to get the word out.

Read more …

Reference 3A Nefes Loudspeakers

Written by: Jason Thorpe
Created: 15 November 2015

It’s got to be the best gig in the world, or the worst.

In my 15 years of reviewing I’ve dealt with companies large and small. The big guys -- Audio Research, MartinLogan, Monitor Audio -- can afford a significant level of detachment from their products. They have marketing guys, shipping guys, and manufacturing departments. Each step in the production of one of their products is insulated from the next, and by the time a component arrives in my listening room it’s been manhandled by a dozen people -- maybe more.

Read more …

Ayre Acoustics KX-5 Twenty Preamplifier

Written by: Aron Garrecht
Created: 01 November 2015

Reviewers' ChoiceEarlier this year, I reviewed Ayre Acoustics’ stellar KX-5 preamplifier ($7950 USD, discontinued). It was the quietest preamplifier I’d ever reviewed, and set the stage for many good things to come, with one exception: having to give it back. Difficult as it was, I parted with the KX-5 -- only to be asked, a few months later, if I’d be interested in reviewing its successor, the KX-5 Twenty. My response was an immediate yes.

But seeing a new version of the KX-5 only 18 months after the release of the original took me a bit aback. Ayre is one of the few audio companies that avoids the economic temptation to make a few minor internal changes, add a new faceplate and a higher price tag, and call the result “all new!” Instead, they claim that they don’t release a new model or version until what they do release is a considerable improvement on its predecessor(s). This has usually involved revising circuits, upgrading parts, and sometimes redesigning all of the circuitry from the ground up. But Ayre had rarely, if ever, replaced a product -- especially one that had so well established itself -- as quickly as it did the KX-5. What gives?

Read more …

Nordost Norse 2 Tyr 2 Speaker Cables, Interconnects, and Power Cords

Written by: Jason Thorpe
Created: 15 October 2015

Seems you can’t turn around these days without bumping into a cable company or tripping over a coil of their wire. There’s good reason cable manufacturers proliferate: the markup must be astronomical. Buy some wire, wrap it in a nice sheath, terminate with extreme prejudice, and off to market. What a gig!

A few cable companies don’t work that way. Wire isn’t always just wire, and in recent years there’s been some honest innovation in a field that, on the face of it, looks simple: no moving parts.

Read more …

Ayre Acoustics MX-R Twenty Mono Amplifiers

Written by: Peter Roth
Created: 01 October 2015

Reviewers' ChoiceBeauty and brains

“I have a head for business and a bod for sin!”

Those words from Tess McGill (Melanie Griffith) caught Jack Trainer (Harrison Ford) hook, line, and sinker, and propelled the remainder of Working Girl, Mike Nichols’s romantic comedy-drama of 1988 -- the intoxicating sentiment stated, appropriately, in a bar. The allure of intellectual prowess coupled with emotional hedonism is great, not only because it is elusive but because it promises to satisfy so completely. It’s hard enough to find one of those qualities; to find both together is exponentially more difficult. Nonetheless, the combination has been heroically sought across many disciplines, including audio reproduction.

Read more …

Aqua - Acoustic Quality La Voce S2 Digital-to-Analog Converter

Written by: Michael Wright
Created: 15 September 2015

When a SoundStage! reviewer asks editor-in-chief Jeff Fritz if he has anything interesting he’d like reviewed, that reviewer never knows what Jeff will say. Jeff said that there was an opportunity to review La Voce S2, a digital-to-analog converter from Aqua - Acoustic Quality (AAQ). I’d never heard of Aqua - Acoustic Quality, and didn’t know if I’d enjoy or regret reviewing their new DAC. But I thought it might be an interesting adventure.

Read more …

Magico Q7 Mk II Loudspeakers

Written by: Jeff Fritz
Created: 01 September 2015

Reviewers' ChoiceI started turning away from the whole notion of declaring something “the best” about the time I shut down my column, “The World’s Best Audio System.” Don’t get me wrong: The writings and events that made up the TWBAS series were enlightening -- I was able to learn from lots of talented industry folks, and assembled several state-of-the-art audio systems in my listening room, the Music Vault. In terms of establishing a personal audio reference, this was invaluable, and no doubt made me a better reviewer. But there’s a futility in searching for the universal “best” -- at least, in high-end audio. It’s an argument that’s never settled, by me or by anyone else.

Read more …

Highend-AudioPC AudiophileOptimizer Computer Audio Software

Written by: Howard Kneller
Created: 15 August 2015

Audiophiles looking for a music server can use a home computer, a music server made by a traditional audiophile component manufacturer, or do it themselves. Typically, the DIY approach is for the very computer savvy, and some custom-designed servers are very good indeed. They can include specially made or modified audiophile parts -- USB cards, clock modules, solid-state drives, SATA cables -- and can even be on the technological cutting edge.

But if you lack the knowledge, time, or inclination to build a custom server, there’s a fourth way: go to a company that will design and build one for you. One such company is England’s Hifidelit, whose server I used to test the software that is the subject of this review.

Read more …

Soulution 711 Stereo Amplifier

Written by: Jeff Fritz
Created: 01 August 2015

Reviewers' ChoiceThere are some things I don’t like about the Soulution 711 stereo power amplifier, and the first is the astronomical price: $65,000 USD. That’s far beyond what any normal person could ever afford. You could certainly make the case that something like the Benchmark Media Systems AHB2, at $2995, is far more relevant to the vast majority of audiophiles.

I have come to admire the 711’s understated appearance. It’s certainly built well, with close tolerances, excellent fit’n’finish, and tasteful appearance. It is not, however, the audio equivalent of a Rolex watch -- it lacks enough visual bling. I think the Dan D’Agostino products are the polar opposite -- they demand attention with their gleaming copper and watch-face meters -- but even Boulder Amplifiers, and certainly Gryphon Audio Designs, bring more defining exterior design elements to the fore. The latter are more distinctive.

Read more …

  1. Rogue Audio RP-5 Preamplifier
  2. Moon by Simaudio Evolution 760A Stereo Amplifier
  3. AudioQuest Cinnamon Ethernet Cable
  4. Spatial Audio Hologram M1 Turbo Loudspeakers
  5. Audio Research Reference 10 Preamplifier
  6. Bryston Middle T Loudspeakers
  7. Vienna Acoustics Imperial Liszt Loudspeakers
  8. Exogal Comet Digital-to-Analog Converter
  9. NAD Masters Series M22 Stereo Amplifier and M12 Preamplifier-DAC
  10. Ascendo C6 Loudspeakers
  11. Hegel Music Systems HD12 Digital-to-Analog Converter
  12. Esoteric Grandioso P1 SACD/CD Transport, Grandioso D1 Mono Digital-to-Analog Converters, and G-01 Master Clock Generator
  13. Blue Circle Audio BC60X1 Power Conditioner
  14. Octave Audio V 110 Integrated Amplifier
  15. JL Audio CR-1 Active Subwoofer Crossover
  16. fo.Q Damping Products and AB-4045 Audio Board Isolation Platform
  17. Devialet 400 Mono Integrated Amplifier-DACs
  18. Audio Research VSi75 Integrated Amplifier
  19. Triangle Magellan Cello Loudspeakers
  20. Audience Au24 SE powerChords, Interconnects, and Speaker Cables
  21. Zanden Audio Systems 120 Phono Stage
  22. Grimm Audio LS1 Loudspeakers and LS1s Subwoofers
  23. Aurender W20 Music Server
  24. Transfiguration Phoenix S Phono Cartridge
  25. M2Tech Young DSD Digital-to-Analog Converter
  26. Audio Research SP20 Preamplifier
  27. Magico S3 Loudspeakers
  28. Synergistic Research High Frequency Transducer (HFT) and Frequency Equalizer (FEQ) Room Treatments and XOT Crossover Transducer
  29. Ayre Acoustics KX-R Twenty Preamplifier
  30. Resonessence Labs Invicta Mirus Digital-to-Analog Converter
  31. Vivid Audio Giya G4 Loudspeakers
  32. Aurender X100L Music Server
  33. Sonus Faber Olympica I Loudspeakers
  34. Clarity Cable Organic Speaker Cables, Interconnects, Digital Interconnect, and Vortex Power Cord
  35. EgglestonWorks Nine Signature Loudspeakers
  36. Light Harmonic LightSpeed USB Cable
  37. David Berning Company ZH-230 Stereo Amplifier
  38. Esoteric Master Sound Works C-02 Preamplifier
  39. Vivid Audio Oval V1.5 Loudspeakers
  40. Daedalus Audio Argos v.2 Loudspeakers
  41. Octave Audio V 70 SE Integrated Amplifier
  42. KR Audio VA910 Mono Amplifiers
  43. T+A Criterion TCD 110 S Loudspeakers
  44. Birch Acoustics Raven Loudspeakers
  45. Monitor Audio Platinum PL200 Loudspeakers
  46. Essential Sound Products Essence Reference-II Power Cords and Reference-II Power Distributor
  47. JE Audio Dyad S400 Stereo Amplifier
  48. Dynamique Audio Celestial Speaker Cables, Zenith Interconnects, Firelight USB, and Infinite Power Cables
  49. Music Culture Elegance MC 501A CD Player-DAC
  50. KR Audio VA340 Mk.II Integrated Amplifier
  51. PMC IB2i Loudspeakers
  52. Cabasse Pacific 3 Loudspeakers
  53. Sonus Faber Venere 3.0 Loudspeakers
  54. Hegel Music Systems HD25 Digital-to-Analog Converter
  55. EMM Labs DAC2X Digital-to-Analog Converter
  56. Esoteric P-02 SACD/CD Transport and D-02 Digital-to-Analog Converter
  57. Vivid Audio Giya G3 Loudspeakers
  58. PBN Audio Scan-Speak B741 Loudspeakers
  59. Blue Circle Audio BC109 Preamplifier
  60. Dynaudio Confidence C2 Signature Loudspeakers
  61. First Watt J2 Stereo Amplifier
  62. Simaudio Moon Evolution 810LP Phono Stage
  63. Boulder Amplifiers 1060 Stereo Amplifier
  64. SMc Audio VRE-1C Reference Preamplifier
  65. Blue Circle Audio NSL Stereo Amplifier
  66. Audio Research Reference 250 Mono Amplifiers
  67. Von Schweikert Audio VR-35 Export Deluxe Loudspeakers
  68. Vitus Audio Signature SM-010 Mono Amplifiers
  69. YG Acoustics Kipod II Signature Loudspeakers
  70. Vandersteen Audio Treo Loudspeakers
  71. Magico Q1 Loudspeakers
  72. Hemingway Audio Prime Reference Mk.II Speaker Cables, Interconnects, and Power Cords
  73. Synergistic Research Element Copper, Tungsten, and Copper-Tungsten-Silver Interconnects and Speaker Cables
  74. Crystal Cable Arabesque Mini Loudspeakers
  75. EgglestonWorks Fontaine Signature Loudspeakers
  76. AudioQuest Diamond and Carbon FireWire 800 Cables
  77. Artos Audio Sunrise Loudspeakers
  78. Esoteric I-03 Integrated Amplifier
  79. NuForce DAC-9 Digital-to-Analog Converter
  80. Audience adeptResponse aR6-TS Power Conditioner
  81. EAR MC 4 Step-Up Transformer
  82. PBN Audio Montana InnerChoic Liberty Loudspeakers
  83. Simple Design Sonore Music Server
  84. Herron Audio VTSP-3A Preamplifier
  85. Copland CDA825 CD Player
  86. TW-Acustic Raven 10.5 Tonearm
  87. Artisan Silver MC Phono Stage
  88. MSB Technology Universal Media Transport
  89. Well Tempered Lab Amadeus Turntable
  90. Purity Audio Design Purity Reference Preamplifier
  91. Silverline Audio Sonatina Mk.IV Loudspeakers
  92. Ayre Acoustics DX-5 Universal A/V Engine
  93. Coda Technologies 15.0 Stereo Amplifier
  94. LessLoss Firewall Power Conditioner and DFPC Signature Power Cable
  95. Miyajima Laboratory Premium BE Mono Cartridge
  96. Magnum Dynalab MD 309 Integrated Amplifier
  97. Audio Research Reference 5 Preamplifier
  98. VAC Phi 200 Stereo Amplifier
  99. Ortofon Cadenza Mono Phono Cartridge
  100. Ultrasone Edition 8 Headphones
  101. YG Acoustics Carmel Loudspeakers
  102. Atma-Sphere Music Amplifier M-60 Mk.3.1 Mono Amplifiers
  103. AudioPrism Ground Control Grounding Cables
  104. Nordost Norse Frey Interconnects and Speaker Cables
  105. Ayre Acoustics KX-R Preamplifier and MX-R Mono Amplifiers
  106. Raysonic SP-300 Integrated Amplifier
  107. Synergistic Research Galileo Universal Interconnect and Speaker Cells, and Mini Power Couplers
  108. VAC Renaissance Mk.3 Preamplifier
  109. Accustic Arts Reference Tube-DAC II SE DAC and Reference Drive II CD Transport
  110. Silent Running Audio VR fp isoBASE Equipment Platforms
  111. EAR 890 Stereo Amplifier

Page 22 of 34

  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
210x600 T+A R Criterion S (20240601)
Gryphon Audio Essence
Simaudio
Dynaudio Contour 20BE
Vitus Audio
Vitus Audio

SoundStage! Ultra is part of
SoundStage!

All contents available on this website are copyrighted by SoundStage!® and Schneider Publishing Inc., unless otherwise noted. All rights reserved.

This site was designed by Rocket Theme, Karen Fanas, and The SoundStage! Network.
To contact us, please e-mail info@soundstagenetwork.com

To Top