15: INSERT: Connect an external effects device
via this jack. Use a stereo 1/4” male Y-cord: ring
= send, tip = return, sleeve = ground. See the
illustration on the panel to the right for more
information
16: POWER ON LED: Lights when the amplifier
is turned on.
17: POWER SWITCH: Turns the amplifier ON in
the up position, off in the down position.
18. POWER CORD (rear panel, not shown):
Your GX-1200H is equipped with a heavy-duty
grounded three-wire power cord. Be sure this
cord is properly plugged into a safely wired
grounded 120 volt, 60Hz AC power outlet before
use. (If your GX-1200H was purchased outside
the United States, refer to the rear panel for
power ratings.) For your safety, never attempt to
defeat the ground connection on this cord.
19: SPEAKER JACKS (rear panel, not
shown): Use these 1/4” output jacks to connect
the amplifier to your speaker cabinet(s). Use
heavy gauge speaker cables. The GX-1200H
can operate into speaker loads as low as 4
ohms.
20: FUSE (rear panel, not shown): Protects
the amplifier against damages caused from a
faulty AC power source or other problems. If the
fuse blows, replace it ONLY with the same size
and type fuse. If the fuse blows repeatedly
check the AC source; if it’s okay, contact your
Crate dealer for service information.
21: CHANNEL SELECT / GAIN FOOTSWITCH
JACK (rear panel, not shown): Connect the stereo
1/4” plug of the supplied three-button footswitch here
for remote control of the Channel Select and Gain
Select settings.
22: REVERB FOOTSWITCH JACK (rear panel,
not shown): Connect the mono 1/4” plug of the sup-
plied three-button footswitch here for remote control
of the reverb on and off.
Connecting to the Insert jack:
The Insert jack (#15) lets you patch external
effects into the amplifier just prior to its power
amp stage. Use Crate’s STP201, STP202 or
STP203 stereo-to-mono Y-cord or an adapter
such as Crate’s YPP117 and 2 1/4” mono signal
cables to connect to the effect as shown below.
TIP
RING
SLEEVE
RETURN
SEND
GROUND
Stereo-to-mono Y-cord:
to Insert
jack
to Insert
jack
(STP201, 3'
STP202, 6'
STP203, 9')
(YPP117)
(1/4"-TO-1/4"
MONO SHIELDED
CABLES)
to
effect
"OUT"
jack
to
effect
"IN"
jack
External Effect
TIP
RING
SLEEVE
Y-adapter and 2 cables:
External Effect
RING
RING
TIP
TIP
to
effect
"OUT"
jack
to
effect
"IN"
jack
GX-120OH Amplifier
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