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amplifi er. Please verify that the indicated voltage requirements of this product are
consistent with the supplied power at your intended point of use.
We have provided a standard IEC AC power cord that fi ts into the IEC 320 line
receptacle / switched inlet module at the rear of the amplifi er. In addition to
providing for power cord attachment this inlet module additionally incorporates a
power switch and fuse holder. The fuse in all cases will be a 5mm x 20mm non re-
settable time delay glass fuse. Proper fuse value is indicated on the back of the amp.
The IEC inlet provides for a safety ground via the AC mains power cord. In addition to
safety this ground is necessary for proper noise rejection. Do not defeat this ground
connection.
Operation:
The XP-32’s front panel controls and display are straight forward and intuitive. We
encourage you to become familiar with their operation prior to use.
On each gain channel there are 5 numbered inputs, one dedicated home theater
input and a tape loop (total of 7 usable inputs) Each of the 7 inputs accept either
single-ended (RCA) or balanced XLR cables.
On each gain channel there are two pairs of outputs associated with volume controls.
One main output and one slave output (either RCA or XLR). The “slave” output may
be set equal to or less than the “main” output by use of the “small volume control
knob on the gain channels.
Once set both “main” and “slave” outputs track each other through the main volume
control on the control chassis. Having two available and relatively independent
outputs with a single volume control allows for bi-amping using amplifi ers of different
gain or drivers of different sensitivity.
The output of the “Tape-loop” is at 0dB (unity gain) output which allows for
convenient recording (independent of and bypassing the volume control).
Balanced inputs and outputs are via XLR connectors. Single-ended input and outputs
are via RCA connections. The XLR connections in all instances conform to AES/EBU
standards, where Pin 1 is grounded , Pin 2 is positive signal and Pin 3 is inverted signal.
The input from the RCA feeds a summing junction that maximized the patented
supersymmetry (X circuit) and preserves the balanced character of the XP-32 from
input to output when fed from a single-ended source.
After all the input and outputs are connected and double checked, you can now
attach the AC power cord and turn the unit on from the rear panel switch located
next to the AC inlet on the rear of the power-supply / control unit.
On the front panel the left-most “MUTE” switch when on silences the output of the
pre-amp, illuminates the associated LED and blanks the volume step numbers in the
alpha-numeric front panel display. Pressing the mute a second time re-establishes
output, extinguishes the associated LED and re-instates the volume step numbers in
the display