Page 13
XPA-5
Configuration and Operation
Line Voltage
The XPA-5 can operate from line voltages of 115 VAC +/- 10% or 230 VAC +/- 10%. The amplifier
will automatically detect which line voltage it is connected to and configure itself accordingly. The
Line Voltage indicators will tell you which line voltage the XPA-5 has detected.
AC Power Switch (rear panel)
The rear-panel AC Power switch controls the main AC power for your XPA-5. When this switch is
in the Off position, the amplifier will not operate. Turning it On will put the XPA-5 into Standby
mode.
Standby Switch (front panel push button)
Press to switch the amplifier On; press again to return to Standby; the halo ring around the button
illuminates amber for Standby and blue for On.
Un-Balanced / Balanced Selector Switches
Independently switch between the Unbalanced (RCA) and Balanced (XLR) inputs. Up selects the
Unbalanced input and Down selects the Balanced input. Only one input can be used at once for
each input. (It is allowed to plug in both a balanced and an unbalanced source and use the switch
to select between them, but only one will be active at once.)
Status LED Switch
Disables the front panel status LEDs when set to Off.
Trigger
When a trigger cable is connected to the Trigger Input (on the rear panel), and a trigger signal is
received (between 5-20 V - AC or DC), the XPA-5 will switch from Standby to On; when the trigger
signal ceases, the XPA-5 will return to Off.
The trigger is typically connected to the preamp or pre/pro that provides a signal source for the
XPA-5, and set to turn the XPA-5 on when the preamp or pre/pro is turned on.
Whenever the XPA-5 is On, the Trigger Output will assert a 12 VDC signal, which may be used to
turn on other trigger-enabled equipment.
