-7-
CONNECTIONS FOR REGULAR OR BALANCED INPUTS:
The
CLASSÉ
175-A
power amplifier is equipped with both regular and balanced inputs. Either
one may be used
SEPARATELY BUT NOT SIMULTANEOUSLY
. The balanced inputs must be connected to a
preamplifier which has balanced main outputs, and balanced interconnects with
"XLR"
connectors are
also required. Regardless of the amplifier inputs used, stereo or mono operation is still possible on the
175-A
.
REGULAR INPUTS
The amplifier is factory set for
REGULAR
use. Connect the regular interconnects to the
RCA
input
jacks on the rear panels of the
175-A
, and make sure the toggle switch lever is closest to the position
marked
REGULAR.
(The
BALANCED "XLR"
input connectors are automatically disable).
BALANCED INPUTS
A balanced preamplifier and balanced interconnects are also required. For use with balanced
preamplifiers other than Classé, the wiring of the 3-pin
XLR
connectors must be matched to that of the
Classé
175-A
which are wired as follows:
PIN 1: GROUND
PIN 2: POSITIVE (NON-INVERTED) SIGNAL
PIN 3: NEGATIVE (INVERTED) SIGNAL
If the pin configuration of the preamplifier differs from above, the balanced interconnects must be
modified to accommodate the different preamp.
Having confirmed the correct connections, plug the
XLR
connectors of the balanced
interconnects into the locking
XLR
connectors on the rear panel of the
175-A
. (To remove the
connectors, press the tab above the connector.) Disconnect the
175-A
from the A.C. line. Make sure the
toggle switch lever is switched from the REGULAR to the BALANCED position. This activates the
balanced inputs and disables the regular inputs.
