Pass Labs XA100 - Manual (Page 4)

4 XA100 Owner’s Manual
Several XA100’s may be easily run in conjunction with other audio
products on a single 15-amp circuit. This amplifier is equipped for
operation with an earth ground provided by the users AC outlet.
Never defeat this ground connection. The signal ground of this
amplifier is connected to earth through a power thermistor, which
provides a safety ground but provides protection from irritating
ground loops.
As a safety issue we suggest that the power cord should be the last
cable installed on your power-amplifier. You may, if you wish,
substitute a 15-amp aftermarket power cord for the one we have
supplied. Only use power cords, which meet all local safety standards
and carry acceptance marks from the local regulatory authority. The
power cord should be attached to the amplifier prior to plugging
into house power. Place the rear mounted switch in the off (down)
position before plugging in this amplifier.
The amplifier’s voltage and current rating are indicated on the rear
panel. It will be either 240 volts, 220 volts, 120 volts or 100 volts,
all with a restorable type circuit breaker of the appropriate ampacity.
The inclusion of this re-settable circuit breaker does away with the
need for disposable fuses. The frequency rating of the AC line
source is 50 to 60 Hz in all cases. Please verify that the amplifiers
indicated voltage requirements are consistent with the supplied
voltage and current at your location. Transformers are input voltage
specific and their change is not a trivial matter.
Looking at the rear panel you will see the AC power cord receptacle,
a power switch / breaker, two pairs of output connectors which
allow for speaker bi-wiring, a single pair of 5 way connectors for
remote turn-on, a single RCA input connector and a single XLR
balanced input connector.
Make sure that the rear panel power switch/breaker is off (down).
Plug the AC cord into the back of the amplifier, and then into the
wall. Then turn the power switch/breaker on (up). The lights in
your house will blink when the power supply charges the capacitors.
(Note: The power switch/breaker is never to be used as a “safety
device” or “emergency disconnect” for this product. This device
provides current limiting which will protect the amplifier, it will not
provide personal shock protection in the event of a reversed hot /
neutral, lack of grounding or other improper wiring in the supplied
mains voltage.)
On the front panel, the “Standby” LED indicator should be glowing
blue, indicating that AC power is available and the capacitor banks
Setup