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Audio Research CD2
Audio-Research-CD2-1
 
Audio Research CD2Audio-Research-CD2-1
Audio Research CD2Audio-Research-CD2-2
Audio Research CD2Audio-Research-CD2-3
Audio Research CD2Audio-Research-CD2-4

STATUS - SOLD
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Description :
The Audio Research CD2 is a versatile new model that offers the function and output options of a digital transport as well as the convenience of a complete single-chassis CD player. Performance is exceptional when used in either mode. The CD2 uses a rugged CD-rom transport mechanism and laser assembly to accurately read the digital data on compact discs. The digital data-stream is then decoded by a bitstream D/A differential (balanced) decoder capable of 20-bit resolution. The resulting analog signal is subsequently fed to a fully differential, direct-coupled analog output stage using both J-FET and bipolar transistors and regulated supplies. The CD2 includes extensive internal engineering dedicated to the control of mechanical resonances potentially affecting the performance of active circuit components.Consequently, the CD2 has even less measurable jitter than its predecessor models, the CD1/CDT1, which were industry leaders in this important aspect. The CD2 provides exceptional musical resolution from CD sources-smooth, harmonically rich, dynamic output with remarkable retrieval of ambient and dimensional detail.

Specifications :
Output, Digital (to external Digital-to-Analog Converter)
- XLR Balanced AES/EBU 110-ohm 4V P-P.
- BNC coax SPDIF 75-ohm 0.7V P-P.
- TOSLINK fiber optical -19dBm, 660nm.
- (Optional) ST-type glass fiber optical -12dBm, 875nm, 62.5/125µm fibers.

Signal Formats (disc):
- Sampling frequency: 44.1kHz.
- Quantization Bit: 16bit linear per channel.
- Channel bit rate: 4.3218Mb/sec.
- Channel modulation code: EFM (8 -14 modulation).
- Error correction: CIRC (cross interleave Reed Solomon Code).

Jitter Reduction:
- High-stabillity crystal-controlled re-clocking for all outputs.

Optical Pickup:
- Type: 3-beam LDGU (Laser Diode & Grating Unit), with holographic diffraction light pen.
- Laser: GaAIAs semiconductor, 780nm, 0.5mW maximum output.
- Servo: Digitally-controlled low-inertia linear positioning actuator.

Output, Analog....................................(Stereo) Balanced XLR 4.2V RMS (+12.5dBv) max.
                     .....................................Single-Ended RCA 2.1V RMS (+6dBv) max.
Output impedance................................(Analog) 350 ohms BAL, 175 ohms SE.
Frequency response.............................0.1-20,000Hz ± 0.2dB.
Signal to Noise ratio.............................96dBA
Distortion............................................-90dB (.003%) 1kHz
Resolution...........................................20 BIT DELTA-SIGMA DAC.
Channel sepration................................100dB 1kHz.
Phase linearity....................................±0.5¡ 20-20,000kHz.
Wow & Flutter.....................................Unmeasureable (Quartz stability). 
                     .....................................Discs: Accepts 5" (12cm) and 3" (8cm) sizes
Dimensions(w x d x h)..........................48 x 35 x 14 cm
Weight................................................7.7 kg

Miscellaneous :
Matching.............................................Audio Research LS22 Preamplifier
             .............................................Audio Research VT150SE Power Amplifier
Original Box........................................Yes
Remote...............................................Substitute Remote
Made in...............................................USA
Condition.............................................9 / 10 (Good Condition)

Product information :
http://www.audioresearch.com/cd2.html

Reviews :
http://www.stereophile.com/cdplayers/591/index.html
http://www.soundstage.com/revequip/audioresearch_cd2.htm
http://www.audioreview.com/cat/digital-sources/cd-players/audio-research/cd2/PRD_117246_1586crx.aspx

 

 
 
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