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Audio Research Dac 8
This looks like a serious Dac with an abundance of 24/192 inputs. Anyone familiar with USB 2.0 HS?
John For Immediate Release Audio Research introduces DAC8 with complete high-resolution capability May 21, 2010 We are pleased to introduce the new DAC8 digital to analog converter. Although physically similar to its predecessor, the DAC8 represents new engineering that advances the state of the art in high resolution USB audio. Audio Research has maximized the USB capability of the DAC8 by incorporating USB 2.0 HS (High Speed) which runs at 480Mbps. USB 2.0 HS has a lower jitter specification than USB 2.0 FS (Full Speed 12mbps), consequently the DAC8 is capable of reproducing music at higher definition/resolution (up to 24/192) than products communicating at USB 2.0 FS speeds (24/96). In addition, the DAC8 employs a low jitter Dual Master Oscillator design that will provide superior digital to analog conversion via its USB 2.0 HS input as well as via the more traditional S/PDIF (RCA, BNC, Toslink and AES/EBU) inputs that are also included on the DAC8. Our USB 2.0 HS audio interface is optimized for all six sample- rates currently in popular use; 44.1, 48, 88.2, 96, 176.4 and 192kHz. In the past, S/PDIF was the default interface mode for High Resolution music files at 176.4 and 192kHz. Now, with Audio Research’s Dual Master Oscillator, USB 2.0 HS interface, and our Quad D/A converter design, USB audio is finally elevated to the status once dominated by S/PDIF. Consequently, regardless of whichever digital input you select, the Audio Research DAC8 promises to provide a superior listening experience. In addition to the High Performance USB design, the DAC8 features: • “DAC8 HD Audio Device” software drivers, which allow listening to your music in its native sample rate as well as assuring BIT PERFECT, low jitter, data transfer from the computer to your DAC8. Because PC and Mac operating systems do not adequately support sample rates over 96kHz, Audio Research has developed ASIO drivers to make the USB audio experience sonically transparent at all sample rates. • Sample Rate measuring function: Measures and displays the correct digital sample rate being sent to the DAC8. This works in USB as well as S/PDIF mode. Consequently, at a glance, you always know exactly which sample rate is being decoded. • The DAC8 employs four 24-bit D/A converters. Each channel uses dual 24-bit D/A converters running in mono mode to lower the noise floor and increase the dynamic range. • Dual Master Oscillators: When the time base of any DAC is not an integer multiple of the digital music sample rate, decoding and quantization errors occur. Consequently, the DAC8 uses two low jitter Master Oscillators; one for 44.1, 88.2 & 176.4kHz sample rates and the other for 48, 96 & 192 kHz sample rates. The DAC8 automatically selects the correct Master Oscillator the instant digital music is detected at the selected input. • All inputs are galvanically isolated from the source to reduce or eliminate noise and/or jitter from entering the DAC8. • The Analog amplifiers in the DAC8 have received the same attention to detail as the digital section. Each channel of the DAC8 uses a true direct-coupled differential amplifier with a bandwidth in excess of 90kHz. • The DAC8’s S/PDIF inputs are designed to accept signals from an HRx, 176.4kHz, 24-bit, High-Resolution music server system playing HRx’s DVD-R recordings. See Reference Recordings HRx Setups for recommended music server setups. • By virtue of all of the above points and our proprietary software drivers , intrinsic jitter has been reduced to less than 10ps. DAC8 HD AUDIO DEVICE SOFTWARE DRIVERS: The DAC8’s USB driver software provides your computer with special high-speed audio drivers not supplied by MS Windows or Mac OS. The Audio Research USB drivers are specially designed to assure low jitter BIT PERFECT data transfer between the server/computer and the DAC8 at all sample rates. Our drivers setup the USB interface to guarantee bandwidth, independent of active bulk transfers from the hard drive. From the ARC icon in your computer’s input tray you can set the DAC8 to any sample rate from 44.1 to 192kHz and allow the music server/management software to up or down convert your music to the selected sample rate. Audiophiles can use custom sample rate conversion algorithms or other file formats provided by third party suppliers such as Windows Media Player, iTunes, J Rivers Media Center, Media Monkey, FooBar, and many others to optimize your music experience. The DAC8 is a fully balanced, zero-feedback, solid-state design utilizing a direct-coupled FET output stage with generous regulated power supplies and seven stages of regulation. There are separate new digital and audio power transformers, and the board material is the same as what we use in our Reference products. Dynamic, forceful, immediate, and possessing remarkable resolution and transparency, the DAC8 is a sonic knockout that is worthy of the finest music systems. With a choice of high-resolution 24/192 S/PDIF inputs (RCA, BNC, AES/EBU and Toslink) in addition to the highest resolution 24/192 USB available, the ability to adjust sample rates, the DAC8 provides the new standard in high performance digital music playback. Shipments will begin in June. The U.S. retail price is $4,995.00. David E. Gordon Managing Director, Sales
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Gryphon Essence stereo amp and preamp/dac Hurricane power cords Fyne Audio F1-10, Lumin T2, Moon 260 Transport Shunyata Research Everest, Sigma V2 XC, Shunyata Research Sigma USB and Ethernet Argento Audio speaker cables and interconnects |
#2
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I believe that USB 2HS allows the passing of 192khs signals. Previously it seems USB was limited to 96
Last edited by Still-One; 05-28-2010 at 07:05 AM. |
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John...thx for posting
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#4
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This DAC8 should be the best DAC you can get for the money. I should have one in hand soon. Then I think it will be time to start downloading some seriously hi-res files. Come on ARC...
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#5
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Cyril.......Finally, an Audio Research forum. You are a happy camper now.
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Dan STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital cable, Sonos Connect, PurePower 2000, Stillpoints, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Wireworld, Sonus faber Amati Anniversario LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Micro Seiki DD40, Ortofon Cadenza Blue, Nakamichi BX-300, Sony 60ES DAT, PS Audio P10, Furutech Flux 50, Sonos Connect, Stillpoints, Wireworld, Kimber, PMC EB1i, JL Audio f113 VINTAGE - McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, Sony DTC-59ES DAT, McIntosh 4300V, JBL 4312A |
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#7
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Now that would look nice sitting next to my LS26!
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Pass XP-20, Oppo BDP-103, PS Audio DSD DAC, PS Audio P5 Powerplant, ATC SCM 19A speakers, Aurender N100H, ACI Force XL sub, Transparent, Wireworld |
#8
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I have been using a Mac Mini as a music server with my DAC8. I upgraded to Snow Leopard a while ago and had to obtain a new driver from ARC to work with the new OS, something about the volume setting in iTunes causing clipping and distortion. I did that and it worked great except that iTunes kept shutting down the computer. After restart it would work well until the next time I started iTunes. I took the computer to the Apple store and they are telling me the ARC DAC8 driver is causing a panic kernel in the computer. Has anyone else had this problem?
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#9
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Has anyone A/B's the DAC 8 with the Berkeley Alpha DAC? I am still working towards hi-res archives and downloads, but can't beat the sound of my Esoteric transport and Reimyo DAP 999 DAC.
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Poland: Silenzio, Simaudio, Luxman, Bricasti, Bryston, Shunyata, Stax, Meze, Linn, Audeze, and Dan Clark Headphones, Stax, Wireworld, Crystal, Nordost, Siltech. Home Main System: Magnepan 20.7, Pass Labs XA 100.5, Audio Research Reference 6, Esoteric P-03, D-03, G0-Rb, DV-60, Clearaudio Innovation & Tangent arm, VPI HW19 MK4 & ET 2.5 arm, Mark Levinson 37, Aesthetix Rhea Signature, Magnum Dynalab Etude, Kiseki PHS, Sumiko Palos Santos Presentation,Wireworld, Crystal Absolute Dream, Shunyata, Acoustic Zen, and Stealth cables Other Avalon Arcus, Snell Type AIII, Tympani IV, Green Mountain Europa, Martin Logan CLS, Tympani 1D, Counterpoint, GAS, Yamaha, Levinson, Perreaux, Proceed, Theta, Linn, and other collectibles, including 60 different headphones and 30+ headphone amps, over 60 cartridges, and too many cables, stands, and tweaks to list. |
#10
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