circuit elements, independent of the single ended outputs. Tape input communicates back to the input bus, independent of the XP- 20 volume control.
Balanced inputs and outputs are via XLR connectors. Single- ended inputs and outputs are via RCA connectors. On the XLR connectors, pin 1 is grounded, pin 2 is the positive signal, and pin 3 is the negative signal. Left channel RCA connectors are marked with “L”. Right channel RCA connectors are marked with “R”. In a similar fashion balanced XLR inputs and outputs are marked with “L” for left and “R” for right channel.
The main outputs are located at the left-hand side (viewed from the rear) of the rear panel, two male XLR connectors, and four RCA connectors, “R” (right) and “L” (left). The RCA connector’s ground (shell) is in parallel with pin 1 of the XLR outputs and the RCA hot is fed from an independent summing junction that maximizes the X circuit benefits. The RCA, single-ended, outputs are buffered from the balanced outputs.
You may use both the single ended and balanced outputs at the same time. On the XLR, pin 1 is ground, pin 2 is positive, and pin 3 is negative.
The XP-20 has an onboard tape loop for those of you who like to record, add a signal processor into the chain or simply need one additional pair of RCA inputs to complete your music system. The tape loop is available only from the remote control and is selected or deselected by a single keystroke of the “Tape” button on the remote. When you select Tape from the remote the display shows a lower case letter “t” on the right hand side. When the letter “t” is showing tape input is selected and other inputs are de-selected, regardless of other settings you may have chosen.
Input and output connectors were carefully selected to withstand a lifetime of frequent use.
The XP-20 gain chassis has a single pair of binding posts labeled “Ext. Amp Turn-on”. A 12-volt signal is available at these binding posts to control additional entertainment electronics. This External Turn On feature was specifically intended to control Pass Laboratories power amplifiers but may in fact control competitive product with similar features. Check your power amplifiers owner manual and specifications for particulars.
This function is only active from the hand held remote control.
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