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Analog Output Connections
Analog output jacks connect to any line level input on your preamplifier or even directly to your power
amplifier, provided it is equipped with level controls. Use only high-quality interconnects to preserve detail
and clarity. Make sure your preamplifier is either turned off or its volume is set to minimum whenever
making connections. There are two analog output connections: RCA jacks for unbalanced line output and
XLR connectors for balanced line output. The pin configuration for the XLR connector is: Pin 1 Ground, Pin
2 + signal, and Pin 3 - signal.
AC Power Cord
Your D/AC-2000 has an IEC standard detachable power cord especially selected for its contribution to the
sound quality of this unit. Try to connect this cord directly to a nearby AC wall outlet and avoid extension
cords or connection to accessory outlets on your preamp.
Operating Your D/AC-2000
Power Switch
Push the upper section of the button to turn on; lower section for off.
Input Select Buttons and LEDs
The four input select buttons correspond to the four input connectors on the rear panel: ST, TOSlink,
AES/EBU and Coaxial. Press one of these buttons to select the desired digital source. An LED will
illuminate to indicate which digital source is selected.
Polarity Invert Button and LED
This button allows you to select between 0° normal operation and 180° inverted polarity. Absolute polarity
means the compression from an instrument or voice in the original recording corresponds to a compression
from the loudspeaker. Conversely, a rarefraction from an instrument or voice in the recording should
correspond to a rarefraction from the loudspeaker. Your choice of 0° or 180° polarity will be strictly a matter
of taste. It may be easier to detect differences between 0° and 180° polarity with some recordings than with
others. Don’t be discouraged if you cannot hear the difference; not everyone can identify absolute polarity
and not every recording will reveal it.
HDCD LED
If you play a CD that has been encoded with the HDCD process, this LED will illuminate. This LED will
remain off on standard recordings, but the HDCD PMD-100 will continue to operate as a superior digital
filter and improve the sound of standard recordings.
Sampling Frequency LEDs
Your D/AC-2000 will recognize the digital signal of whatever type of digital source you connect and will
automatically switch to the correct sampling rate automatically. The 44.1 kHz sampling rate is standard for
compact discs. 32 kHz is for digital broadcast; 48 kHz is for DAT.
De-Emphasis LED
Some digital recordings are encoded with pre-emphasis contouring. Your D/AC-2000 automatically
recognizes and processes them. This LED will indicate that the recording is being de-emphasized.
