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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.

Classé Audio Delta Pre Preamplifier-DAC

Written by: Aron Garrecht
Created: 15 April 2021

In 2011, Classé Audio introduced the CP-800 preamplifier-DAC ($6500, all prices USD) to replace the well-received, analog-only CP-700 preamplifier ($8000); both models are now discontinued. In 2013 I reviewed the CP-800, our editorial team named it a Reviewers’ Choice, and I made it my reference preamplifier. The CP-800 remained largely unchanged until late 2016, when it, too, was discontinued.

Read more …

Estelon X Diamond Mk II Loudspeakers

Written by: Jeff Fritz
Created: 01 April 2021

Reviewers' ChoiceTo many audiophiles, this one included, luxury loudspeaker maker Estelon has largely been a mystery. What I knew about Estelon before this review—and I follow the upper end of the hi-fi market closely—was entirely superficial: They’re based in Tallinn, Estonia, in northern Europe; before COVID-19, they displayed their wares at Munich’s annual High End show; the shapely forms of their speakers are often described as elegant; and those speakers are not inexpensive.

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Audio Research Reference 6SE Preamplifier

Written by: Aron Garrecht
Created: 15 March 2021

Reviewers' ChoiceA little less than two years ago, I reviewed Audio Research’s Reference 6 preamplifier ($15,000, discontinued; all prices USD). Little more than a day of listening later, I’d decided I wouldn’t be sending my review sample back, and ever since, the Ref 6 has been my reference preamp. Asked to review the Ref 6’s successor, the Reference 6SE ($17,000), my answer was a no-brainer: Yes.

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Zesto Audio Andros Deluxe II Phono Stage

Written by: Jeff Sirody
Created: 01 March 2021

It’s not imperative for me that an audio component be visually flashy or fancy. I still love the clean, classic simplicity of, say, the basic burnished metal faceplate of a vintage Conrad-Johnson or Audio Research model—no knobs or buttons other than a power switch. That said, there’s something about watching the myriad meters of my reference system of McIntosh Laboratory amplification components dancing in a blue glow—my experience of the sound is enhanced by the system’s visual appeal.

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Esoteric Grandioso K1X SACD/CD Player-DAC and Grandioso PS1 Power Supply

Written by: Howard Kneller
Created: 15 February 2021

Reviewers' ChoiceIn December 2017, I reviewed and then bought Esoteric’s one-box Grandioso K1 SACD/CD player and digital-to-analog converter ($31,000, discontinued; all prices USD). That’s a lifetime ago in the fast-paced world of digital audio, but some things haven’t changed—for one thing, as evinced by the K1’s successor, the Grandioso K1X ($36,000), Esoteric is sticking with the format of 4.75″ shiny silver discs. From the company known for having virtually perfected the SACD/CD transport, that’s no surprise.

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Classé Audio Delta Mono Amplifiers

Written by: Aron Garrecht
Created: 01 February 2021

Reviewers' ChoiceMike Viglas and David Reich founded Classé Audio in 1980. Their first product, the DR-2 class-A power amplifier, quickly gained notoriety for its ability to convincingly drive loudspeakers to unexpectedly high volume levels despite its diminutive power-output specification of 25Wpc. To this day, the success and sound quality of the DR-2 serve as hallmarks for every Classé product since.

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Sonus Faber Heritage Collection Maxima Amator Loudspeakers

Written by: Hans Wetzel
Created: 15 January 2021

In his inimitably matter-of-fact fashion, Magico’s Alon Wolf once told me that “We make loudspeakers, not furniture.” The statement seemed to imply that, for him, form must always follow function. I suspect that the philosophies of most discerning audiophiles are similar. That’s one reason why ultra-high-end systems are often found in dedicated rooms replete with treatments, cable lifters, and fastidious attention paid to ensure that those systems are performing optimally, no matter the imposition. Everything else is subordinated to the pursuit of maximum sound quality.

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Vinnie Rossi L2i Signature Edition Integrated Amplifier-DAC

Written by: Hans Wetzel
Created: 01 January 2021

When I unboxed Vinnie Rossi’s new L2i Signature Edition integrated amplifier-DAC, two things stood out: 1) It’s good-looking and extremely well built. 2) I didn’t see how it could be worth $22,490 (as reviewed, with optional DAC module; all prices USD). It wasn’t until I’d spoken with founder-owner-designer Vinnie Rossi himself that I began to appreciate what I’d been sent. (See my profile of Rossi and his company.)

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Linear Tube Audio Z40 Integrated Amplifier

Written by: Hans Wetzel
Created: 15 December 2020

So you’re on the hunt for an integrated amplifier in the mid- to high four figures. There are many options, and in some ways it would be hard to end up with one that wasn’t at least very good. But you’re a discerning shopper, with a refined taste who can’t be bothered with any of the run-of-the-mill, high-powered, class-AB options littering the audioscape. Class-D amps are out due to their lack of character. Most tubed amps require that the owner bias and occasionally replace the tubes -- and what are you, a mechanic? No, you’d rather be listening. Finally, you go weak in the knees when you see a product proudly emblazoned with “Made in the USA.”

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Audio Research Reference 160S Stereo Amplifier

Written by: Jeff Fritz
Created: 01 December 2020

When you’re sitting in front of the Audio Research Reference 160S stereo amplifier ($22,000 USD), it’s hard not to see the appeal. Its GhostMeters are a brilliant design touch that modernizes the look of a metered power amplifier. So named because their needles appear at the front of an otherwise transparent pane of acrylic graduated in watts, the GhostMeters let the user simultaneously watch the needles dance along with the amp’s power output while peering past the meters to the glow of eight KT150 output tubes. Listening to music over a high-end stereo system can delight more than one sense -- if this sort of visual delight supports your pleasure in listening, then a plain ol’ slab of thick aluminum just won’t do.

Read more …

  1. Rotel Michi M8 Mono Amplifiers
  2. Black Cat Cable Trøn USB and Trøn Kløk Digital Links
  3. Dynaudio Contour 20i Loudspeakers
  4. Mola Mola Tambaqui Digital-to-Analog Converter
  5. Synergistic Research PowerCell SX Power Conditioner
  6. Focal Diablo Utopia Colour Evo Loudspeakers
  7. Gryphon Audio Designs Essence Stereo Amplifier
  8. Constellation Audio Inspiration Integrated 1.0 Integrated Amplifier
  9. Plinius Reference A-150 Stereo/Mono Amplifier
  10. dCS Bartók Digital-to-Analog Converter
  11. EMM Labs DV2 DAC-Preamplifier
  12. Wells Audio Commander Level II Preamplifier
  13. Audience frontRow Interconnects, Speaker Cables, and Power Cords
  14. McIntosh Laboratory C1100 Preamplifier
  15. Xavian Electronics Classic Quarta Loudspeakers
  16. Estelon YB Loudspeakers
  17. Simaudio Moon 700i v2 Integrated Amplifier
  18. Shunyata Research Hydra Alpha A12 Power Conditioner and Venom NR-V10 Power Cord
  19. Merrill Audio Jens Phono Stage
  20. Gryphon Audio Designs Zena Preamplifier
  21. EgglestonWorks Nico Evolution Loudspeakers
  22. Sonus Faber Olympica Nova III Loudspeakers
  23. Audience Au24 SX Interconnects and Speaker Cables
  24. McIntosh Laboratory MC1.25KW Mono Amplifiers
  25. Sonus Faber Heritage Collection Electa Amator III Loudspeakers
  26. Rockport Technologies Avior II Loudspeakers
  27. Theoretica Applied Physics BACCH-SP adio 3D Sound Processor
  28. PMC Fact Fenestria Loudspeakers
  29. GigaWatt PC-4 Evo+ Power Conditioner
  30. Luxman D-380 CD Player
  31. SGR Audio Model III Symphony Equipment Rack
  32. TAD Evolution One TX Loudspeakers
  33. McIntosh Laboratory MT10 Turntable
  34. Magico A3 Loudspeakers
  35. Merrill Audio Element 118 Mono Amplifiers
  36. Valve Amplification Company Master Preamplifier
  37. Constellation Audio Revelation Andromeda Phono Stage
  38. Audio Research Reference 6 Preamplifier
  39. Essential Sound Products MusicCord Pro Power Cord
  40. Gryphon Audio Designs Mojo S Loudspeakers
  41. Synergistic Research Galileo SX Interconnects, Speaker Cables, and IFT Jumpers
  42. Auralic Vega G2 Streaming DAC-Preamplifier
  43. Cocktail Audio X45Pro Music Server-DAC
  44. Luxman L-509X Integrated Amplifier
  45. Vivid Audio Kaya 45 Loudspeakers
  46. Audio Research Reference 160M Mono Amplifiers
  47. Weiss Engineering DAC501 Digital-to-Analog Converter
  48. EgglestonWorks Kiva Loudspeakers
  49. VPI Prime Signature Turntable
  50. AVM Ovation SD 6.2 Preamplifier-DAC-Streamer
  51. Shunyata Research Hydra Typhon QR Power Distributor
  52. Burmester Ambience BA71 Loudspeakers
  53. GIK Acoustics 2A Alpha Diffusor/Absorber Acoustic Panel
  54. Linnenberg Elektronik Telemann DAC-Preamplifier
  55. Top Wing Blue Dragon Phono Cartridge
  56. Simaudio Moon 888 Mono Amplifiers
  57. Synergistic Research SR25 Limited Edition Power Cord
  58. Balanced Audio Technology VK-53SE Preamplifier
  59. Sumiko Reference Starling Moving-Coil Phono Cartridge
  60. Tidal Piano G2 Loudspeakers
  61. ZYX Ultimate 4D-X MC Phono Cartridge
  62. European Audio Team E-Glo S Phono Stage
  63. Balanced Audio Technology VK-255SE Stereo Amplifier
  64. T+A Elektroakustik PA 3100 HV Integrated Amplifier
  65. Furutech NCF Booster Cable Holder
  66. Raidho Acoustics XT-5 Loudspeakers
  67. Waversa Systems WDAC3 Mk.II Digital-to-Analog Converter
  68. Rethm Maarga Loudspeakers
  69. Audience Au24 SX powerChord Power Cord
  70. McIntosh Laboratory MA9000 Integrated Amplifier-DAC
  71. VPI MW1 Cyclone Record-Cleaning Machine
  72. Esoteric Grandioso G1 Master Clock Generator
  73. Pro-Ject RPM 10 Carbon Turntable with 10cc Evolution Tonearm
  74. Esoteric Grandioso K1 SACD/CD Player-DAC
  75. Sonus Faber Homage Amati Tradition Loudspeakers
  76. TAD Micro Evolution One Loudspeakers
  77. Paradigm Persona 7F Loudspeakers
  78. Dynaudio Contour 60 Loudspeakers
  79. VAC Signature 200iQ Stereo Amplifier
  80. Synergistic Research Galileo UEF Speaker Cables, Interconnects, and IFT Jumpers
  81. Mytek Digital Brooklyn DAC-Phono Stage-Preamplifier-Headphone Amplifier
  82. Moon by Simaudio Evolution 860A Stereo Amplifier
  83. Esoteric K-05X SACD/CD Player/DAC
  84. Audio Physic Codex Loudspeakers
  85. Furutech FI-50 NCF Series Power Connectors and FP-TCS31 Alpha PC-Triple C Bulk Power Cord
  86. Vivid Audio Giya G1 Spirit Loudspeakers
  87. Audio Research Foundation DAC9 Digital-to-Analog Converter
  88. Vandersteen Audio Model Seven Mk.II Loudspeakers and M7-HPA Mono Amplifiers
  89. JPlay JCAT USB Card and USB Isolator
  90. Monitor Audio Platinum II PL300 II Loudspeakers
  91. Audiodesksysteme Gläss Vinyl Cleaner Pro
  92. Gryphon Audio Designs Antileon Evo Stereo Amplifier
  93. Symposium Acoustics Osiris Stealth Ultimate Equipment Rack
  94. Focus Audio Liszt Concerto Mono Integrated Amplifiers
  95. Magico MPod Support System
  96. Linear Tube Audio ZOTL40 Mk.II Stereo Amplifier
  97. Synergistic Research PowerCell 12 UEF SE Power Conditioner
  98. van den Hul Crimson Stradivarius Phono Cartridge
  99. Devialet Expert 1000 Pro Mono DAC-Integrated Amplifiers
  100. Audience adeptResponse aR6-TSSOX Power Conditioner
  101. Audio Physic Avanti Loudspeakers
  102. High Fidelity Cables CT-1 Ultimate Digital Link, Interconnects, Speaker Cables, and Power Cords
  103. Gryphon Audio Designs Diablo 300 Integrated Amplifier-DAC
  104. Constellation Audio Inspiration Stereo 1.0 Amplifier
  105. Kharma Elegance dB9-S Loudspeakers
  106. Ayre Acoustics AX-5 Twenty Integrated Amplifier
  107. Luxman EQ-500 Phono Stage
  108. fo.Q Modrate HEM-25 Pure Note Insulators
  109. Constellation Audio Inspiration Preamp 1.0 Preamplifier
  110. Zanden Audio Systems Model 3100 Preamplifier
  111. YBA Passion PRE550A DAC-Preamplifier
  112. Skogrand Cables Ravel Speaker Cables and Interconnects
  113. Soulution 560 Digital-to-Analog Converter
  114. Synergistic Research Atmosphere Level 4 Speaker Cables and Interconnects, Atmosphere Level 3 Power Cords, Grounding Block and HD Ground Cables
  115. Merging NADAC ST-2 Digital-to-Analog Converter
  116. Zanden Audio Systems AT-1 Acoustic Tubes and AP-1 Acoustic Panels
  117. Rockport Technologies Cygnus Loudspeakers
  118. Esoteric K-07X SACD/CD Player/DAC
  119. Moon by Simaudio Evolution 850P Preamplifier
  120. Stanford Research Systems PERF10 Rubidium Audio Clock
  121. Wadia di322 Digital-to-Analog Converter
  122. Reference 3A Nefes Loudspeakers
  123. Ayre Acoustics KX-5 Twenty Preamplifier
  124. Nordost Norse 2 Tyr 2 Speaker Cables, Interconnects, and Power Cords
  125. Ayre Acoustics MX-R Twenty Mono Amplifiers
  126. Aqua - Acoustic Quality La Voce S2 Digital-to-Analog Converter
  127. Magico Q7 Mk II Loudspeakers
  128. Highend-AudioPC AudiophileOptimizer Computer Audio Software
  129. Soulution 711 Stereo Amplifier
  130. Rogue Audio RP-5 Preamplifier
  131. Moon by Simaudio Evolution 760A Stereo Amplifier
  132. AudioQuest Cinnamon Ethernet Cable
  133. Spatial Audio Hologram M1 Turbo Loudspeakers
  134. Audio Research Reference 10 Preamplifier
  135. Bryston Middle T Loudspeakers
  136. Vienna Acoustics Imperial Liszt Loudspeakers
  137. Exogal Comet Digital-to-Analog Converter
  138. NAD Masters Series M22 Stereo Amplifier and M12 Preamplifier-DAC
  139. Ascendo C6 Loudspeakers
  140. Hegel Music Systems HD12 Digital-to-Analog Converter
  141. Esoteric Grandioso P1 SACD/CD Transport, Grandioso D1 Mono Digital-to-Analog Converters, and G-01 Master Clock Generator
  142. Blue Circle Audio BC60X1 Power Conditioner
  143. Octave Audio V 110 Integrated Amplifier
  144. JL Audio CR-1 Active Subwoofer Crossover
  145. fo.Q Damping Products and AB-4045 Audio Board Isolation Platform
  146. Devialet 400 Mono Integrated Amplifier-DACs
  147. Audio Research VSi75 Integrated Amplifier
  148. Triangle Magellan Cello Loudspeakers
  149. Audience Au24 SE powerChords, Interconnects, and Speaker Cables
  150. Zanden Audio Systems 120 Phono Stage
  151. Grimm Audio LS1 Loudspeakers and LS1s Subwoofers
  152. Aurender W20 Music Server
  153. Transfiguration Phoenix S Phono Cartridge
  154. M2Tech Young DSD Digital-to-Analog Converter
  155. Audio Research SP20 Preamplifier
  156. Magico S3 Loudspeakers
  157. Synergistic Research High Frequency Transducer (HFT) and Frequency Equalizer (FEQ) Room Treatments and XOT Crossover Transducer
  158. Ayre Acoustics KX-R Twenty Preamplifier
  159. Resonessence Labs Invicta Mirus Digital-to-Analog Converter
  160. Vivid Audio Giya G4 Loudspeakers
  161. Aurender X100L Music Server
  162. Sonus Faber Olympica I Loudspeakers
  163. Clarity Cable Organic Speaker Cables, Interconnects, Digital Interconnect, and Vortex Power Cord
  164. EgglestonWorks Nine Signature Loudspeakers
  165. Light Harmonic LightSpeed USB Cable
  166. David Berning Company ZH-230 Stereo Amplifier
  167. Esoteric Master Sound Works C-02 Preamplifier
  168. Vivid Audio Oval V1.5 Loudspeakers
  169. Daedalus Audio Argos v.2 Loudspeakers
  170. Octave Audio V 70 SE Integrated Amplifier
  171. KR Audio VA910 Mono Amplifiers
  172. T+A Criterion TCD 110 S Loudspeakers
  173. Birch Acoustics Raven Loudspeakers
  174. Monitor Audio Platinum PL200 Loudspeakers
  175. Essential Sound Products Essence Reference-II Power Cords and Reference-II Power Distributor
  176. JE Audio Dyad S400 Stereo Amplifier
  177. Dynamique Audio Celestial Speaker Cables, Zenith Interconnects, Firelight USB, and Infinite Power Cables
  178. Music Culture Elegance MC 501A CD Player-DAC
  179. KR Audio VA340 Mk.II Integrated Amplifier
  180. PMC IB2i Loudspeakers
  181. Cabasse Pacific 3 Loudspeakers
  182. Sonus Faber Venere 3.0 Loudspeakers
  183. Hegel Music Systems HD25 Digital-to-Analog Converter
  184. EMM Labs DAC2X Digital-to-Analog Converter
  185. Esoteric P-02 SACD/CD Transport and D-02 Digital-to-Analog Converter
  186. Vivid Audio Giya G3 Loudspeakers
  187. PBN Audio Scan-Speak B741 Loudspeakers
  188. Blue Circle Audio BC109 Preamplifier
  189. Dynaudio Confidence C2 Signature Loudspeakers
  190. First Watt J2 Stereo Amplifier
  191. Simaudio Moon Evolution 810LP Phono Stage
  192. Boulder Amplifiers 1060 Stereo Amplifier
  193. SMc Audio VRE-1C Reference Preamplifier
  194. Blue Circle Audio NSL Stereo Amplifier
  195. Audio Research Reference 250 Mono Amplifiers
  196. Von Schweikert Audio VR-35 Export Deluxe Loudspeakers
  197. Vitus Audio Signature SM-010 Mono Amplifiers
  198. YG Acoustics Kipod II Signature Loudspeakers
  199. Vandersteen Audio Treo Loudspeakers
  200. Magico Q1 Loudspeakers
  201. Hemingway Audio Prime Reference Mk.II Speaker Cables, Interconnects, and Power Cords
  202. Synergistic Research Element Copper, Tungsten, and Copper-Tungsten-Silver Interconnects and Speaker Cables
  203. Crystal Cable Arabesque Mini Loudspeakers
  204. EgglestonWorks Fontaine Signature Loudspeakers
  205. AudioQuest Diamond and Carbon FireWire 800 Cables
  206. Artos Audio Sunrise Loudspeakers
  207. Esoteric I-03 Integrated Amplifier
  208. NuForce DAC-9 Digital-to-Analog Converter
  209. Audience adeptResponse aR6-TS Power Conditioner
  210. EAR MC 4 Step-Up Transformer
  211. PBN Audio Montana InnerChoic Liberty Loudspeakers
  212. Simple Design Sonore Music Server
  213. Herron Audio VTSP-3A Preamplifier
  214. Copland CDA825 CD Player
  215. TW-Acustic Raven 10.5 Tonearm
  216. Artisan Silver MC Phono Stage
  217. MSB Technology Universal Media Transport
  218. Well Tempered Lab Amadeus Turntable
  219. Purity Audio Design Purity Reference Preamplifier
  220. Silverline Audio Sonatina Mk.IV Loudspeakers
  221. Ayre Acoustics DX-5 Universal A/V Engine
  222. Coda Technologies 15.0 Stereo Amplifier
  223. LessLoss Firewall Power Conditioner and DFPC Signature Power Cable
  224. Miyajima Laboratory Premium BE Mono Cartridge
  225. Magnum Dynalab MD 309 Integrated Amplifier
  226. Audio Research Reference 5 Preamplifier
  227. VAC Phi 200 Stereo Amplifier
  228. Ortofon Cadenza Mono Phono Cartridge
  229. Ultrasone Edition 8 Headphones
  230. YG Acoustics Carmel Loudspeakers
  231. Atma-Sphere Music Amplifier M-60 Mk.3.1 Mono Amplifiers
  232. AudioPrism Ground Control Grounding Cables
  233. Nordost Norse Frey Interconnects and Speaker Cables
  234. Ayre Acoustics KX-R Preamplifier and MX-R Mono Amplifiers
  235. Raysonic SP-300 Integrated Amplifier
  236. Synergistic Research Galileo Universal Interconnect and Speaker Cells, and Mini Power Couplers
  237. VAC Renaissance Mk.3 Preamplifier
  238. Accustic Arts Reference Tube-DAC II SE DAC and Reference Drive II CD Transport
  239. Silent Running Audio VR fp isoBASE Equipment Platforms
  240. EAR 890 Stereo Amplifier

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210x600 T+A R Criterion S (20240601)
Dynaudio Contour 20BE
 Electrocompaniet - AW300M
Simaudio
Vitus Audio
Vitus Audio

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