PRISTINE CONDITION AUDIO RESEARCH CD-9 - TRADE-IN
PRICED TO MOVE! $6k - FIRM AT $6K PLUS SHIPPING....
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 we created the Reference CD9 CD Player/DAC. 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 we
have 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 and—for the first time—the USB input.
Additionally, there is a selectable digital filter, with either fast or
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, our custom ASIO drivers must be installed in 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. It’s time to
hear your music in High Definition®. FREQUENCY RESPONSE
+0-3dB, 3Hz to 96kHz at rated output. 0.15dB 20Hz to 20kHz. (Balanced, 200k ohms load)@ 192kHz sample rate.DISTORTION
THD+N Less than .003% at 2V RMS BAL output.SIGNAL-NOISE-RATIO
DYNAMIC RANGE (AES17)
RMS NOISE LEVEL
14.0dB Balanced, 7.0dB SE.
Digital: 75 ohms RCA, 110 ohms AES/EBU, OPT 660nm TOSLink fiber 44.1 to 96kHz.
660 ohms Balanced, 330 ohms SE Main (2), 20K ohms minimum load and 2000pF maximum capacitance.
At 0.0dB input, 5V RMS into 200K ohm balanced load.
DIGITAL SAMPLE RATES
24 bits @ 44.1kHz to 192kHz, SPDIF, AES/EBU and USB 2.0 HS.
Select upsampling or Native mode; CD, RCA, AES/EBU, TOS upsample to 176.4 or 192kHz. USB upsamples to 88.2 or 96kHz.
22.579mHz ±20Hz for 44.1, 88.2 & 176.4kHz. 24.576mHz ±20Hz for 48, 96 & 192kHz.
OUTPUTS DIGITAL INTRINSIC JITTER
XLR Balanced AES/EBU 110-ohms 4V P-P, BNC coax SPDIF 75-ohms 0.7V P-P.
107dB @ 1kHz.
Power, Previous, Stop, Pause, Play, Next, Input.
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 (Quartz stability); Discs; Accepts 5″ (12cm) and 3″ (8cm) sizes.OPTICAL PICKUP
Type; 3-beam LDGU (Laser Diode & Grating Unit), with holographic
diffraction light pen, Laser; GaAlAs semiconductor, 780nm, 0.5mW max.
output, Servo; Digitally-controlled low inertia linear positioning
High-stability crystal-controlled re-clocking for all outputs.
Six-digit vacuum fluorescent with optical filter; LED display; CD, AES,
USB, RCA, TOS, Fast, Slow, Upsample, Power, 44.1, 48, 88.2, 96, 176.4,
(4) 6H30 dual triodes, plus (1) 6550WE & 6H30 in power supply.
Repeat track/disc, 0-9 digit entry keys, Scan ten seconds each track,
Pause program, Stop program, Play, Shuffle tracks, Program enters
selection on program list, Time elapsed, remaining track, remaining
disc, A/B repeat segment, Filter select, Input select, Pause, Play,
Skip>, Skip<, FF, FR, Upsample/Native mode, DSP-DN, DSP-UP.
105-125VAC 60Hz (210-250VAC 50/60Hz) 120 watts maximum. Sleep mode 1 watts maximum.
Width 19″ (48 cm); Height 5.25″ (13.4 cm) (standard rack panel); Depth 15.375″ (39 cm);