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I

NSTALLATION

The D/A-1 should be mounted horizontally on a flat hard surface.
Vertical installation is not recommended.  

To minimize hum pickup, keep the unit well away from the power
amplifier, and route power cords away from input cables.

The D/A-1 requires an ac power line providing between 108 and 125
volts at 50 to 60 Hz. Alternatively, the D/A-1 is optionally available for
operation on 100, 220, or 240 volt power lines. 

CONNECTION

The D/A-1 provides three separate digital inputs (two coaxial, and one
optical) and a coaxial digital output. Connect your digital sources (CD
transport, Laser Disc Player, DCC recorder) to any of these inputs, and
a DCC or other digital tape recorder to the digital output.

Digital Inputs

Coaxial 1:

 Transformer coupled coaxial input with BNC connector 

Coaxial 2:

 Direct coupled coaxial input with phono connector

Optical:

 TOSLINK optical connector. The TOSLINK connector is sup-

plied with a plug to prevent dust from accumlating on the lens of the
receiver. Leave this plug in place whenever this input is unused.

The D/A-1 is optionally available with an additional ST glass optical
connector. This option includes a back panel mounted toggle switch to
select between the two optical connectors.

Outputs

Digital Output:

 A BNC connector is provided to send the digital signal

out to another digital device (normally a DCC recorder).

DA1 Owner’s Manual

4

Summary of Contents for D/A-1

Page 1: ...A 1 has been designed with the goal of faithfully reproducing the dynamics tonalities textures and ambience of a live musical performance The design and materials have been carefully selected to yield...

Page 2: ...prepaid by the owner and will be returned to the owner freight and insurance to any destination in the United States prepaid by conrad johnson design d Normal wear and maintenance are not covered by...

Page 3: ...ginal packing material and ship to the Service Department address above If you do not have the original packing material replacements are available from conrad johnson design for a nominal charge Be s...

Page 4: ...r Disc Player DCC recorder to any of these inputs and a DCC or other digital tape recorder to the digital output Digital Inputs Coaxial 1 Transformer coupled coaxial input with BNC connector Coaxial 2...

Page 5: ...selecting optical on the input selector will connect the optical input that has been selected by the back panel toggle switch Phase This switch allows selection of 0 degrees phase correct and 180 deg...

Page 6: ...es sure In terms of your stereo system these transients are created by your loudspeakers If the speakers respond to musical transients by first moving out they are creating a rise in pressure and the...

Page 7: ...able which will permit a reference quality system to fulfill its promise of musical reality whereas others will fall far short Consult your conrad johnson dealer for recommendations for your specific...

Page 8: ...NS Output 0 dB 1 0V Frequency Response 5Hz to 20kHz 0 5 dB Hum and noise 92dB below 1 0V output Ouput impedance less than 200 ohms Mechanical Dimensions 19 W x 3 315 H x 14 375 D Net Weight 16 lbs DA1...

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