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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.

Audio Research Reference 6 Preamplifier

Written by: Aron Garrecht
Created: 01 June 2019

Reviewers' ChoiceIn late 1972, Audio Research Corporation released what would become one of ARC’s bestselling preamplifiers of all time: the SP-3. While available, the SP-3 earned praise for its low noise levels, wide soundstages, and awe-inspiring transparency. More than one audio publication described its overall sound character as “a straight wire with gain.” ARC sold thousands of SP-3s at $595 USD before discontinuing the model in 1976, but what I find interesting is how much of the SP-3 remains evident in more recent ARC models. By today’s standards, the SP-3’s faceplate of brushed bronze over satin black, rotary analog controls, and big pushbuttons look dated, but the three-box segregation of the faceplate and orientation of controls aren’t all that different from those of ARC’s SP-20 preamplifier ($9000, recently discontinued). Then there was the SP-3’s tube complement: six 12AX7s in the analog stage with two 12AX7s in the tone control circuit. This arrangement in the analog stage, albeit with different tubes, can be found under the hood of the subject of this review: ARC’s Reference 6 preamplifier.

Read more …

Essential Sound Products MusicCord Pro Power Cord

Written by: Tom Mathew
Created: 15 May 2019

I was so impressed with Rethm Audio’s Maarga loudspeakers, which I reviewed last year, that I spoke to Mark Sossa, of Rethm’s US distributor, Well Pleased Audio Vida, to arrange to buy a pair of Rethm’s magnum opus, the Saadhana. My timing was serendipitous -- Jacob George, the sound architect at Rethm, told me he’d made some improvements in the Saadhana, and that I’d be sent the first pair of units to incorporate them. The changes included a complete redesign of the bass chamber and driver configuration, improved woofers, and new isolation footers -- George promised substantial improvements in the already excellent bass reproduction.

Read more …

Gryphon Audio Designs Mojo S Loudspeakers

Written by: Jeff Fritz
Created: 01 May 2019

Gryphon Audio Designs’ very first loudspeaker was the Cantata, a stand-mounted two-way, released in 2002. But the Danish company had been founded 17 years before, in 1985, by Flemming Rasmussen, who retired in 2018. Until the Cantata came along, Gryphon had been known only for their massive class-A power amplifiers and other electronics. With the Cantata, an all-Gryphon system had become a reality, and to this day, many of their customers have systems in which every link in the audio-signal chain, cables included, is a Gryphon product. The Cantata was produced until 2008, and in 2009 Gryphon launched the original Mojo, which remained in production until 2016. By then the Mojo had been joined by several other Gryphon speakers, all rather large floorstanders. The Mojo S, reviewed here, was debuted at Munich’s High End in May 2016, and is the only minimonitor among Gryphon’s four current speaker models.

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Synergistic Research Galileo SX Interconnects, Speaker Cables, and IFT Jumpers

Written by: Howard Kneller
Created: 15 April 2019

Reviewers' ChoiceDiscontinued well over a decade ago, Synergistic Research’s quantum tunneled X-series cables ran with the best in terms of soundstaging, three-dimensional imaging, transparency, speed, leading-edge detail, noise reduction, and dynamics. However, as I wrote at the time, those cables could sound a bit harsh and grainy in the upper frequencies. And given the great amounts of detail they could convey, and their somewhat forward sound, they could be fatiguing in some systems.

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Auralic Vega G2 Streaming DAC-Preamplifier

Written by: Jeff Fritz
Created: 01 April 2019

Reviewers' ChoiceI sit and read with sadness as insecure audiophiles on various audio forums denigrate each other’s six-figure stereo systems. Grown people ought to know better. If you’re used to watching Vikings and The Walking Dead, well, the carnage can be just about as gory.

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Cocktail Audio X45Pro Music Server-DAC

Written by: Aron Garrecht
Created: 15 March 2019

There’s no arguing that playing music from a digitally stored library is more convenient than getting out of your chair, sorting through shelves of CDs, and spinning discs one by one. But there’s a catch -- first you must build that digital library. That process can take hours, days, even weeks, depending on the size of the collection.

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Luxman L-509X Integrated Amplifier

Written by: Jeff Fritz
Created: 01 March 2019

Reviewers' ChoiceI begin forming strong opinions of an audio component at the unboxing stage. While some audiophiles will tell you that they pay only for sound quality, and that any black-anodized case will do, anyone in the real world of 2019 knows that high-end audio components costing close to five figures also need to look like luxury audio gear if they’re going to succeed in the marketplace. Consumers pay enough money for this stuff -- they want to have their cake and eat it, too. The Luxman ticks both boxes with bold pen strokes.

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Vivid Audio Kaya 45 Loudspeakers

Written by: Jason Thorpe
Created: 15 February 2019

Reviewers' ChoiceReview components come and go, and for the most part it doesn’t take me long to get their measure. Speakers, especially, don’t take much time to figure out, and I’m fairly confident in my speaker-analyzing skillz. It’s a mature technology, right? A mechanical device with three, maybe four moving parts: drivers and crossover in a box.

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Audio Research Reference 160M Mono Amplifiers

Written by: Aron Garrecht
Created: 01 February 2019

It could be said that 1970 was a tumultuous year: the Apollo 13 accident, President Richard Nixon’s invasion of Cambodia, and Paul McCartney’s announcement that the Beatles had officially disbanded. On the other hand, the Treaty on the Non-Proliferation of Nuclear Weapons was put into effect, Boeing had just introduced the world to the 747 Jumbo Jet, and William Zane Johnson founded Audio Research Corporation (ARC) -- the same month Aerosmith was born.

Read more …

Weiss Engineering DAC501 Digital-to-Analog Converter

Written by: Uday Reddy
Created: 15 January 2019

Funny how things come around. Ten years ago, when I first dipped a toe in computer-based audio, I considered using as my reference DAC Weiss Engineering’s DAC2 ($3380 USD when available). At the time, the only way to get digital audio out of a PC was with an add-on soundcard, and the only good way to get digital audio out of an Apple Mac computer was with FireWire -- digital audio via USB was still only a glimmer on the horizon. I was already a Mac user, and the Weiss DAC2 seemed an obvious choice: it had a FireWire input, in addition to TosLink, S/PDIF on coax, and AES/EBU on XLR. However, on hearing that Apple would soon no longer support FireWire, I bought a Logitech Transporter ($1900, discontinued) and began streaming digital audio via Bluetooth. When USB audio became more widely supported, I connected my Mac directly to the Transporter with a Halide Design Bridge USB-to-S/PDIF link ($450), so I could stream 16- and 24-bit PCM files directly to the Transporter. Later, Weiss added a USB input to their DACs -- but by then I’d purchased what is still my reference DAC, a Meitner Audio MA-1 ($7000).

Read more …

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