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16: 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 illustra-
tion on the panel to the right for more information.
17: POWER ON LED: Lights when the amplifier is
turned on.
18: POWER SWITCH: Turns the amplifier ON in
the up position, off in the down position.
19. POWER CORD (rear panel, not shown): Your
GFX-1200H is equipped with a heavy-duty ground-
ed three-wire power cord. Be sure this cord is prop-
erly plugged into a safely wired grounded 120 volt,
60Hz AC power outlet before use. (If your GFX-
1200H was purchased outside the United States,
refer to the rear panel for power ratings.) For your
safety, never attempt to defeat the ground connec-
tion on this cord.
20: SPEAKER JACKS (rear panel, not shown):
Use these 1/4” output jacks to connect the amplifi-
er to your speaker cabinet(s). Use heavy gauge
speaker cables. The GFX-1200H can operate into
speaker loads as low as 4 ohms.
21: 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 infor-
mation.
22: 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.
23: DSP FOOTSWITCH JACK (rear panel, not
shown): Connect the mono 1/4” plug of the sup-
plied three-button footswitch here for remote con-
trol of the DSP on and off.
Connecting to the Insert jack:
The Insert jack (#16) lets you patch external effects
into the amplifier just prior to its power amp stage.
Use Crate’s CYC6MS stereo-to-mono Y-cord or an
adapter such as Crate’s CA11Y and 2 1/4” mono
signal cables to connect to the effect as shown
below.
GFX-1200H Amplifier
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
11 12 13 14 15 16 1817