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Quick Start Guide 2
®
Quick Start Guide
Owner’s Reference A-100 Power Amplifi er
©2004 PS Audio International Inc. All rights reserved.
RCA inputs
Once you have decided on the location and chosen the appropriate power cables, you are ready to
install the A-100 Power Amplifi er.
We would recommend that you power the entire system down before attempting to insert the A-100
Power Amplifi er.
Insert the A-100 Power Amplifi er into the
system. Make sure the rear mounted
power switch is in the off position.
Connect the inputs of the A-100 Power
Amplifi er to the output of your preamplifi er,
surround processor or preamp outputs of
a receiver or integrated amplifi er. There are
two choices of inputs: balanced or single
ended. Once chosen, you must switch to
the appropriate input via the rear mounted
input selection switch on the A-100 Power
Amplifi er.
Balanced inputs require a preamp or
source that has a balanced output. These
outputs are the preferred method of connection as a balanced XLR type of output allows the lowest
noise connection between preamp and power amp, and allow owners to take advantage of the high
common mode rejection characteristics of the A-100 Power Amplifi er. Be sure to use a high quality
well shielded and well regarded interconnect for this critical link. PS Audio makes an entire line of
excellent choices for interconnects, perfectly matched to your equipment’s needs. Input impedance
is 100K.
RCA or single ended inputs will be the typical inputs as many preamplifi ers, surround processors,
receivers and integrated amplifi ers have only this standard type of input. Be sure to use a high quality
well shielded and well regarded interconnect for this critical link. PS Audio makes an entire line of
excellent choices for interconnects, perfectly matched to your equipment’s needs. Input impedance
is 50K
Make sure the rear mounted input selection switch is placed in the appropriate position, either XLR or
RCA (balanced or single ended). The switch must match the input you are using. Only one input on
the A-100 Power Amplifi er can be used at a time, either XLR or RCA.
To bi-amp, you can choose to place a single input and it will feed both channels. This will allow you to
use one channel of the A-100 for the tweeter of your speaker and the other channel for the woofer and
midrange. This will only work if your loudspeakers have two sets of input binding posts, one for the
tweeter and the other for the woofer midrange. The switch for this is located on the rear of the A-100,
between the inputs and outputs. You must use the left input, XLR or RCA for this mono operation.
Power down fi rst
Balanced inputs
Connect the
inputs
Rear switch
Speaker Cables
Bi-amp
(16 pages)
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