Reference CD9 Compact Disc Player/DAC
The Reference CD9 is a super high-resolution compact disc player with a super high-resolution digital-to-analog converter to play CDs and other digital sources with greater dynamic range.
Product only available for in-store purchase and not available for online sale.
Audio Research introduced its first Reference series CD player in 2005 with the Reference CD7, then evolving into the Reference CD8 in 2008. Both players met with critical acclaim for their musicality and reproductive accuracy. People still want to play their CDs, but they also want to add other digital sources such as computer audio to their music systems, so the Reference CD9 CD Player/DAC was created. It combines the best of both, a super high-resolution compact disc player with a super high-resolution digital-to-analog converter that is stunning in its musicality.
The Reference CD9 incorporates four digital inputs: Asynchronous USB 2.0HS, AES/EBU, RCA, and Toslink. All inputs handle 24 bit / 192k resolution. As you would expect, the Reference CD9 retains the Philips PRO2R transport, still the best dedicated CD mechanism available. It is simply unsurpassed for compact disc playback. Benefitting from what Audio Research learned in the development of the Reference DAC and the DSPre, the REF CD9 utilizes quad 24-bit DACs running in mono mode, with dual master oscillators; one for 44.1 / 88.2 / 176.4 sample rates, the other for 48 / 96 / 192kHz sample rates. Sample rate conversion is selectable for all inputs, allowing playback in native resolution or via upsampling, including compact disc andfor the first timethe USB input. Additionally, there is a selectable digital filter, with either fast or slow rolloff.
On the bench, the bandwidth of the Reference CD9 is five times that of the CD8, with one tenth of the distortion, greater dynamic range, and it is also quieter. Like the Reference 5SE, Reference PH2SE and Reference DAC, the analog section is vacuum-tube, with four 6H30 dual-triodes, and there is vacuum-tube power-supply regulation featuring a 6550WE with a 6H30. The magic is continued. The front panel has the familiar, dimmable CD display on the left side. On the right side there are three vertical rows of LEDs to indicate sampling rate, input selection, filter and power. In addition to the digital inputs, the back panel includes Digital Outputs (AES/EBU and BNC), single-ended RCA and balanced XLR outputs, and a 15A IEC power connector. Due to its function as a separate DAC, Audio Research's custom ASIO drivers must be installed on your computer for use with the USB 2.0HS input.
Sonically, the Reference CD9 is in a new class, combining the magical musicality of tubes with new levels of transparency and aliveness. The Reference CD9 sounds faster with greater transient speed, improved dynamics from top to bottom, much greater resolution of inner detail, with a focus and purity that is captivating. Rhythm, pace and timing are better than ever, something you must hear to appreciate. Its time to hear your music in High Definition.
|Signal Format (Disc)||Sample freq. 44.1kHz, Quantization bit; 16bit linear/channel, Channel bit rate; 4.3218Mb/sec, Channel modulation code; EFM (8-14 modulation), ERROR CORRECTION; CIRC. Drive Mechanism (Top Load) Wow & Flutter; Un-measureable|
|Total Harmonic Distortion||< .003%|
|Sample Rate||24 bits @ 44.1kHz to 192kHz, SPDIF, AES/EBU and USB 2.0 HS.|
|Signal To Noise Ratio||110 dB|
|RMS Noise Level||- 95 dBV (20 - 20kHz)|
|On Screen Display||96, 176.4, 192kHz,Six-digit vacuum fluorescent with optical filter; LED display; CD, AES, USB, RCA, TOS, Fast, Slow, Upsample, Power, 44.1, 48, 88.2|
|Outputs||XLR Balanced AES/EBU 110-ohms 4V P-P, BNC coax SPDIF 75-ohms 0.7V P-P|
|Impedance||Output Impedance: 660 ohms Balanced, 330 ohms SE Main (2), 20K ohms minimum load and 2000pF maximum capacitance|
|Gain||14.0dB Balanced, 7.0dB SE.|
|Tube Complement||(4) 6H30 dual triodes, plus (1) 6550WE & 6H30 in power supply.|
|Intrinsic Jitter||< 10 ps|
|Master Oscillator||22.579mHz ± 20Hz for 44.1, 88.2 & 176.4kHz. 24.576mHz ± 20Hz for 48, 96 & 192kHz|
|Power Requirements||120 watts maximum. Sleep mode 1 watt maximum|
|Power Supply||120V AC, 60Hz|