Parasound D/AC-1000 Operating your D/AC-1000

Your D/ AC-l 000 has an IEC standard detachable power cord which has been specially selected for

its contribution to the sound quality of this unit. Try to connect only this cord directly to a nearby

AC wall outlet and avoid extension cords or connection to accessory outlets on your preamp.

If you are considering an AC line conditioner, be advised that it may not have a positive influence

on the sound ofyourD/AC-lOOO.

Power Oo/Off

Push the upper section of the b~tton to turn on; lower section for off.

Your D/ AC-l 000 will recognize the digital signal of whatever type of digital source you connect

and will switch to the correct sampling rate automatically. The 44.1 kHz sampling rate is standard

for compact discs. .

In case there is an interuption of data from the digital source or a malfunction of the digital source

or connection, the ErrorIData LED will illuminate. This shows you that your D/ AC-l 000 is not

receiving correct digital data to process and convert to analog. In this case, a muting circuit will

prevent a "garbage" signal passed to Analog Out or the Digital Out Record jacks.

The three Input Select buttons correspond to the three different types of input cormectors on the

rearpane1: Coaxial, Optical!, Optical 2.

This button allows you to select between 00 normal opemtion and 1800 inverted polarity. Even if

you know if your preamplifier and power amplifier are inverting or non-inverting designs, you

have no way to know which of your CD's may have been recorded with inverted absolute polarity.

. Absolute polarity is not the same as Left-Right loudspeaker phasing. Absolute polarity means the

+ and - of both channels are reproduced so the compression wave of an initial musical attack

correlates to the compression wave ( +) from outgoing speaker diaphragm motion rather than

rarefraction (-) of ingoing speaker diaphragm motion.

Your choice of 0° or 180° polarity will be strictly a matter of taste. It may be easier to detect

differences between 0° and 1800 polarity with some recordings than with others. Don't be

discouraged if you cannot hear the difference - not everyone can identify absolute polarity.

Some digital recordings are encoded with pre-emphasis contouring. Your D/ AC-l 000 automatic-

ally recognizes and processes them. An LED illuminates as a beacon for visual confirmation.

Operating your D/AC-1000