Parasound manual Operating your D/AC-1000, AC Power, De-EmphasisLED

AC Power

Your D/AC-l 000 hasan IEC standarddetachablepower cord which hasbeenspecially selectedfor its contribution to the soundquality of this unit. Try to connectonly this cord directly to a nearby AC wall outlet and avoid extensioncordsor connectionto accessoryoutlets on your preamp.

If you are considering an AC line conditioner, be advisedthat it may not have a positive influence on the soundofyourD/AC-lOOO.

Operating your D/AC-1000

Power Oo/Off

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

Sampling Frequency LEDs

Your D/AC-l 000 will recognizethe digital signal of whatevertype of digital sourceyou connect

and will switch to the correct sampling rateautomatically. The 44.1kHz sampling rate is standard
for compactdiscs.	.

ErrorlData LED

In casethereis an interuption of datafrom the digital sourceor a malfunction of the digital source or connection,the ErrorIData LED will illuminate. This showsyou that your D/AC-l 000 is not receiving correct digital datato processand convert to analog. In this case,a muting circuit will preventa "garbage"signal passedto Analog Out or the Digital Out Recordjacks.

Input Select Buttons and LEDs

The threeInput Selectbuttons correspondto the threedifferent types of input cormectorson the rearpane1:Coaxial, Optical!, Optical 2.

Polarity Invert Button and LED

This button allows you to selectbetween00normal opemtionand 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'smay havebeenrecordedwith inverted absolutepolarity.

. Absolute polarity is not the sameasLeft-Right loudspeakerphasing. Absolute polarity meansthe

+and - of both channelsare reproducedso the compressionwave of an initial musical attack

correlatesto the compressionwave (+) from outgoing speakerdiaphragmmotion ratherthan rarefraction(-) of ingoing speakerdiaphragmmotion.

Your choiceof 0° or 180°polarity will be strictly a matterof taste. It may be easierto detect

differencesbetween0° and 1800polarity with somerecordingsthanwith others. Don'tbe discouragedif you cannothear the difference - not everyonecan identify absolutepolarity.

De-EmphasisLED

Somedigital recordingsare encodedwith pre-emphasiscontouring. Your D/AC-l 000 automatic- ally recognizesandprocessesthem. An LED illuminates asa beaconfor visual confirmation.