Page 1
-2-
D/AC-2000 Front and Rear Panel Drawings
D/AC-2000 Ultra Digital/Analog Converter
PowerPolarity
Invert Sampling Frequency
HDCD
Digital Input
ST Optical
AES/EBUCoaxial 44.1kHz
48kHz 32kHz Toslink De-Emphasis
Power Switch Sampling
Frequency
IndicatorsHDCD
IndicatorPolarity
Invert
SwitchDe-emphasis
Indicator
Digital Selection
Switches
PARASOUND D/AC-2000Ultra Digital to Analog Converter
Parasound Products, Inc.
San Francisco, CA. U.S.A
Made in U.S.A.
CAUTION:TO PREVENT ELECTRIC SHOCK,
DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
Power Consumption: 20W
CAUTIONRISK OF ELECTRIC SHOCK
DO NOT OPEN
Analog Outputs
AC 120V 60 Hz
AES/EBU ST Optical CoaxialToslink Left
12
3 + Ground
Right
Bal Unbal Bal UnbalDigital Inputs
Analo g Output Connectors Di gital Input Connectors AC Cord Connector
Figure #1 D/AC-2000 Front Panel Controls
Figure #2 D/AC-2000 Rear Panel Connections
Page 2
-3-
Connecting Your D/AC-2000
When you make connections, be careful to avoid tension on digital and audio interconnects that might
cause damage to the connectors or cause them to pull loose. Do not bend either coaxial or optical digital
cables at an angle, this could permanently damage them. Be sure to turn off the power of your preamplifier
and power amplifier while making connections. As an additional safeguard, turn your preamplifiers
volume control to minimum.
Digital Inputs
Your D/AC-2000 has four digital inputs: Coaxial, AES/EBU, ST Optical, and TOSlink. It is possible to
connect four separate digital sources to your D/AC-2000 and select among them from the front panel.
However, radiation from unused digital inputs may contaminate the sound of the selected input source.
If you have more than one digital source connected, make sure you turn off the power of the unused
source until you are ready to listen to it.
Coaxial: RCA Connector - 75
W W W W
W Unbalanced
75
W coaxial output connections are provided on many high quality CD players. You should use only
good quality cables which have been designed for digital data transmission such as the Stereophile
recommended Parasound DataBridge. Cables designed for audio frequencies are not suitable for digital
signals and will not give you satisfactory results.
AES/EBU: XLR Connector - 110
W W W W
W Balanced
AES/EBU (Audio Engineering Society/European Broadcast Union) 110
W balanced connections have
become the standard digital connection for professional digital audio equipment and are becoming
increasingly popular with high-end consumer equipment. AES/EBU connections are thought to be
superior to coaxial, TOSlink, and even ST connections because of their inherent noise rejection capability.
When you use the AES/EBU connection, be sure to use one designed for digital transmission such as the
recommended Parasound Balanced DataBridge. Cables designed for audio frequencies are not suitable
and will not give you satisfactory results.
Optical: ST Fiber Optic
The ST module employs the AT&T data transmission standard. ST fiber optic connections are considered
by some to be superior to either TOSlink or coaxial connection for data transmission. Use care when
connecting the ST connector to the D/AC-2000. ST connectors are more fragile than other connectors.
Pay special attention to the guide pins when making an ST connection; never try to force the connector.
Optical: TOSlink Fiber Optic
TOSlink fiber optic connections are also popular and are found on most high-quality video laser disc
players as well as older CD players and CD transports. Your dealer can assist you in selecting an
appropriate optical cable with TOSlink connectors.
