Lexicon Power Amplifer GX-7 - Manual (Page 14)

Basic Operation Lexicon
2-4
2 AUDIO OUTPUT CONNECTORS
Provide audio output for the speakers. Output connectors can
accept bare speaker wires, banana plug connectors, or certain
spade connectors. When using bare speaker wires, loosen the
connector, insert the wire into the top of the receptacle, then
tighten the connector. The same procedure should be used for
spade connectors. Banana plugs should be inserted into the
outward-facing receptacle.
Use heavy gauge speaker cable to ensure low-impedance connec-
tions between the amplifier and the speakers. Observe correct
speaker polarity.
CAUTION!
Never make or break connections to the GX-7 unless the
GX-7 and all associated components are powered off.
Do not connect the outputs of one channel to the outputs
of other channels or to other amplifiers.
Note:
The Class 2 Wiring label is required for any unit in which the audio output
power exceeds 10 watts per channel under normal operating conditions
or the unit is intended to be installed or connected by a qualified person.
3 MASTER POWER SWITCH
Connects and disconnects power to the AC Input Connector. When
this switch is on, the front panel standby/on LED illuminates. When
it is off, the front panel standby/on button will not function. Set this
switch to off when making or breaking connections to the amplifier.
To power on the GX-7, press the rear panel master power switch.
When powered on, the front panel LED will light. There will be a
short pause from the time the power is turned on until the output is
sent to the speakers. This is normal operation and protects the
speakers from potential damage while the unit stabilizes. You may
hear a relay click during start-up, this is also normal operation.
CAUTION!
When the GX-7 master power switch is switched off or
there is a power outage, the state of the unit remains the
same when power is returned. If in standby mode (red
LED) and power is disconnected, it will remain in standby
mode when power is returned. If the unit is in active
mode (blue LED) and power is disconnected, it will remain
activated when power is returned. It is recommended that
the GX-7 is set to standby mode before powered off to
prevent potential damage to the unit or your speakers.
If the GX-7 is not trigger connected to a controlling
device, such as the MC-12HD/MC-8, which comes out of
power loss and recovery in standby mode, and/or with a
known volume setting, there is a potential for damage to
the speakers if power is lost and restored with the GX-7 in
active mode.
4 REMOTE TRIGGER INPUT
Enables the GX-7 to be controlled by the MC-12HD/MC-8 or other
external devices with a 12V DC trigger output. Connect the trigger
output of the external device to the TRIGGER INPUT of the GX-7
amplifier. The GX-7 will automatically respond when the external
device is powered on and off. When the controlling device is turned
on, the amplifier will turn on after a short pause. This pause is inten-
tional and serves to protect the speakers from damage while the
unit stabilizes. During start-up, you may hear a relay click. This is
normal operation.
WARNING