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Vitus Audio
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Hegel

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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.

Moon by Simaudio Evolution 850P Preamplifier

Written by: Jeff Fritz
Created: 01 January 2016

Reviewers' ChoiceI’ve had a love/hate relationship with the analog preamplifier. For audiophiles like me, with all-digital systems, the allure of going preampless is strong. There are many digital-to-analog converters on the market, at all different price points, that offer remote switching of digital sources and have quite transparent volume controls. These DACs, in effect, have become the digital preamp -- perfect for those who don’t need analog switching. Bridging the gap between these full-featured DACs and the all-analog preamplifier are analog preamps with digital input sections -- essentially, a preamp with a built-in DAC. With such components, you have the choice of analog or digital inputs, which offers tremendous flexibility that can accommodate almost any system configuration. The downside is that upgrading your DAC also means replacing your analog preamp.

Read more …

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 …

  1. Soulution 711 Stereo Amplifier
  2. Rogue Audio RP-5 Preamplifier
  3. Moon by Simaudio Evolution 760A Stereo Amplifier
  4. AudioQuest Cinnamon Ethernet Cable
  5. Spatial Audio Hologram M1 Turbo Loudspeakers
  6. Audio Research Reference 10 Preamplifier
  7. Bryston Middle T Loudspeakers
  8. Vienna Acoustics Imperial Liszt Loudspeakers
  9. Exogal Comet Digital-to-Analog Converter
  10. NAD Masters Series M22 Stereo Amplifier and M12 Preamplifier-DAC
  11. Ascendo C6 Loudspeakers
  12. Hegel Music Systems HD12 Digital-to-Analog Converter
  13. Esoteric Grandioso P1 SACD/CD Transport, Grandioso D1 Mono Digital-to-Analog Converters, and G-01 Master Clock Generator
  14. Blue Circle Audio BC60X1 Power Conditioner
  15. Octave Audio V 110 Integrated Amplifier
  16. JL Audio CR-1 Active Subwoofer Crossover
  17. fo.Q Damping Products and AB-4045 Audio Board Isolation Platform
  18. Devialet 400 Mono Integrated Amplifier-DACs
  19. Audio Research VSi75 Integrated Amplifier
  20. Triangle Magellan Cello Loudspeakers
  21. Audience Au24 SE powerChords, Interconnects, and Speaker Cables
  22. Zanden Audio Systems 120 Phono Stage
  23. Grimm Audio LS1 Loudspeakers and LS1s Subwoofers
  24. Aurender W20 Music Server
  25. Transfiguration Phoenix S Phono Cartridge
  26. M2Tech Young DSD Digital-to-Analog Converter
  27. Audio Research SP20 Preamplifier
  28. Magico S3 Loudspeakers
  29. Synergistic Research High Frequency Transducer (HFT) and Frequency Equalizer (FEQ) Room Treatments and XOT Crossover Transducer
  30. Ayre Acoustics KX-R Twenty Preamplifier
  31. Resonessence Labs Invicta Mirus Digital-to-Analog Converter
  32. Vivid Audio Giya G4 Loudspeakers
  33. Aurender X100L Music Server
  34. Sonus Faber Olympica I Loudspeakers
  35. Clarity Cable Organic Speaker Cables, Interconnects, Digital Interconnect, and Vortex Power Cord
  36. EgglestonWorks Nine Signature Loudspeakers
  37. Light Harmonic LightSpeed USB Cable
  38. David Berning Company ZH-230 Stereo Amplifier
  39. Esoteric Master Sound Works C-02 Preamplifier
  40. Vivid Audio Oval V1.5 Loudspeakers
  41. Daedalus Audio Argos v.2 Loudspeakers
  42. Octave Audio V 70 SE Integrated Amplifier
  43. KR Audio VA910 Mono Amplifiers
  44. T+A Criterion TCD 110 S Loudspeakers
  45. Birch Acoustics Raven Loudspeakers
  46. Monitor Audio Platinum PL200 Loudspeakers
  47. Essential Sound Products Essence Reference-II Power Cords and Reference-II Power Distributor
  48. JE Audio Dyad S400 Stereo Amplifier
  49. Dynamique Audio Celestial Speaker Cables, Zenith Interconnects, Firelight USB, and Infinite Power Cables
  50. Music Culture Elegance MC 501A CD Player-DAC
  51. KR Audio VA340 Mk.II Integrated Amplifier
  52. PMC IB2i Loudspeakers
  53. Cabasse Pacific 3 Loudspeakers
  54. Sonus Faber Venere 3.0 Loudspeakers
  55. Hegel Music Systems HD25 Digital-to-Analog Converter
  56. EMM Labs DAC2X Digital-to-Analog Converter
  57. Esoteric P-02 SACD/CD Transport and D-02 Digital-to-Analog Converter
  58. Vivid Audio Giya G3 Loudspeakers
  59. PBN Audio Scan-Speak B741 Loudspeakers
  60. Blue Circle Audio BC109 Preamplifier
  61. Dynaudio Confidence C2 Signature Loudspeakers
  62. First Watt J2 Stereo Amplifier
  63. Simaudio Moon Evolution 810LP Phono Stage
  64. Boulder Amplifiers 1060 Stereo Amplifier
  65. SMc Audio VRE-1C Reference Preamplifier
  66. Blue Circle Audio NSL Stereo Amplifier
  67. Audio Research Reference 250 Mono Amplifiers
  68. Von Schweikert Audio VR-35 Export Deluxe Loudspeakers
  69. Vitus Audio Signature SM-010 Mono Amplifiers
  70. YG Acoustics Kipod II Signature Loudspeakers
  71. Vandersteen Audio Treo Loudspeakers
  72. Magico Q1 Loudspeakers
  73. Hemingway Audio Prime Reference Mk.II Speaker Cables, Interconnects, and Power Cords
  74. Synergistic Research Element Copper, Tungsten, and Copper-Tungsten-Silver Interconnects and Speaker Cables
  75. Crystal Cable Arabesque Mini Loudspeakers
  76. EgglestonWorks Fontaine Signature Loudspeakers
  77. AudioQuest Diamond and Carbon FireWire 800 Cables
  78. Artos Audio Sunrise Loudspeakers
  79. Esoteric I-03 Integrated Amplifier
  80. NuForce DAC-9 Digital-to-Analog Converter
  81. Audience adeptResponse aR6-TS Power Conditioner
  82. EAR MC 4 Step-Up Transformer
  83. PBN Audio Montana InnerChoic Liberty Loudspeakers
  84. Simple Design Sonore Music Server
  85. Herron Audio VTSP-3A Preamplifier
  86. Copland CDA825 CD Player
  87. TW-Acustic Raven 10.5 Tonearm
  88. Artisan Silver MC Phono Stage
  89. MSB Technology Universal Media Transport
  90. Well Tempered Lab Amadeus Turntable
  91. Purity Audio Design Purity Reference Preamplifier
  92. Silverline Audio Sonatina Mk.IV Loudspeakers
  93. Ayre Acoustics DX-5 Universal A/V Engine
  94. Coda Technologies 15.0 Stereo Amplifier
  95. LessLoss Firewall Power Conditioner and DFPC Signature Power Cable
  96. Miyajima Laboratory Premium BE Mono Cartridge
  97. Magnum Dynalab MD 309 Integrated Amplifier
  98. Audio Research Reference 5 Preamplifier
  99. VAC Phi 200 Stereo Amplifier
  100. Ortofon Cadenza Mono Phono Cartridge
  101. Ultrasone Edition 8 Headphones
  102. YG Acoustics Carmel Loudspeakers
  103. Atma-Sphere Music Amplifier M-60 Mk.3.1 Mono Amplifiers
  104. AudioPrism Ground Control Grounding Cables
  105. Nordost Norse Frey Interconnects and Speaker Cables
  106. Ayre Acoustics KX-R Preamplifier and MX-R Mono Amplifiers
  107. Raysonic SP-300 Integrated Amplifier
  108. Synergistic Research Galileo Universal Interconnect and Speaker Cells, and Mini Power Couplers
  109. VAC Renaissance Mk.3 Preamplifier
  110. Accustic Arts Reference Tube-DAC II SE DAC and Reference Drive II CD Transport
  111. Silent Running Audio VR fp isoBASE Equipment Platforms
  112. EAR 890 Stereo Amplifier

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210x600 T+A R Criterion S (20240601)
Dynaudio Confidence 20A
Simaudio
Dynaudio Contour 20BE
Vitus Audio
Vitus Audio

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