Owner`s manual

Limited Warranty
Audio Research Corporation products are covered by a 3-
Year Limited Warranty, or a 90-Day Limited Warranty
on vacuum tubes. This Limited Warranty initiates from the
date of purchase, and is limited to the original purchaser, or
in the case of demonstration equipment, limited to the
balance of warranty remaining after original shipment to
the retailer or importer.
In the United States, the specific terms, conditions and
remedies for fulfillment of this Limited Warranty are listed
on the warranty card accompanying the product in its ship-
ping carton, or may be obtained from the authorized retail-
er or from the Audio Research Customer Service Depart-
ment. Outside the United States, the authorized importing
retailer or distributor has accepted the responsibility
for warranty of Audio Research products sold by them.
The specific terms and remedies for fulfillment of the
Limited Warranty may vary from country to country.
Warranty service should normally be obtained from the
importing retailer or distributor from whom the product
was purchased.
In the unlikely event that technical service beyond the abil-
ity of the importer is required, Audio Research will fulfill
the terms and conditions of the Limited Warranty. Such
product must be returned at the purchaser's expense to the
Audio Research factory, along with a photocopy of the
dated purchase receipt for the product, a written descrip-
tion of the problem(s) encountered, and any information
necessary for return shipment. The cost of return shipment
is the responsibility of the purchaser.
Specifications
OUTPUTS, ANALOG: (Stereo)
1. Balanced XLR 5.4V RMS (+14.6dBv) max.
2. Single-Ended RCA 2.7V RMS (+8.6dBv) max.
OUTPUT IMPEDANCE: (Analog)
660 ohms BAL, 330 ohms SE.
FREQUENCY RESPONSE:
0.5–20,000Hz + 0 -1dB.
SIGNAL TO NOISE RATIO: 110dBA
DISTORTION: .005% 1kHz
RESOLUTION: 24 BIT DELTA-SIGMA DAC.
CHANNEL SEPARATION: 95dB 1kHz.
OUTPUTS, DIGITAL: (to external Digital-to-Analog Converter)
1. XLR Balanced AES/EBU 110-ohm 4V P-P.
2. BNC coax SPDIF 75-ohm 0.7V P-P.
SIGNAL FORMAT (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).
DRIVE MECHANISM (top load):
Wow & Flutter: Unmeasureable (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: GaAIAs semiconductor, 780nm, 0.5mW maximum
output.
Servo: Digitally-controlled low-inertia linear positioning
actuator.
JITTER REDUCTION: High-stabillity crystal-controlled
re-clocking for all outputs.
DISPLAY: Six-digit vacuum fluorescent, with optical filter.
POWER REQUIREMENTS (detachable power cord):
5
Model Reference CD7