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XSP-1
Configuration and Operation
Line Voltage
The XSP-1 can operate from line voltages of 115 VAC +/- 10% or 230 VAC +/- 10%; when
the unit is powered on, it will automatically detect the correct line voltage and set itself
accordingly.
AC Power Switch (rear panel)
The rear-panel AC power switch controls the main AC power for your XSP-1. When this
switch is in the Off position, the amplifier will not operate. Turning it On will put the XSP-1
into Standby mode.
Standby Switch (front panel Push Button)
When the XSP-1 is in Standby mode, the ring around the front panel Standby button will
be lit amber. Pressing this button once will switch the XSP-1 On (and the ring around the
button will turn blue); pressing it again will return the XSP-1 to Standby mode.
Note: Please refer to the XSP-1 Front Panel (page 7) and XSP-1 Rear Panel (page 10)
sections for details about the functions of each button and control.
Volume Control (setting and memory)
The Volume control on the front panel of the XSP-1 is connected to a precision digital
encoder, which controls the setting for the digitally controlled analog volume control.
(The function is duplicated by the and Volume - buttons on the remote control.)
Rotating the knob clockwise raises the volume; counter-clockwise lowers it; and the current
setting is displayed on the front panel VFD display.
Note: Because the knob operates a digital encoder, the volume setting is not
indicated by the position of the lighted indicator dot on the knob.
The Volume levels of the Main Outputs and the Headphone Output on the XSP-1 are
controlled independently. Normally, the knob controls the level of the Main Outputs, and
that level is shown on the display. When headphones are inserted, the knob controls the
level for the headphones, and that level is shown on the display. Both levels are stored
independently. Whenever headphones are inserted, the Main Outputs are disabled, and the
Volume setting returns to the last level set for headphone listening. When the headphones
are removed, the Main Outputs are again enabled, at the last level selected for speaker
listening. When the XSP-1 is turned On after being Off or in Standby, the Volume ramps up
to the last level used for that mode (speaker or headphone listening).
