GX-140D Amplifier
REAR PANEL:
24: AC LINE IN: This heavy-duty, grounded, three-wire
power cord is to be plugged into ONLY a safely-wired,
grounded 120 volt, 60 cycle AC power outlet. DO NOT
attempt to defeat the ground connection of this cable! If
your GX-140D was purchased outside of the United
States, see the unit’s rear panel for its power rating and fol-
low the above guidelines.
25,26: POWER AMP 1, 2 SPEAKERS: You may connect
the outputs of the GX-140D to your external speakers
using these jacks. When connecting speakers use a
matched pair; that is, two speakers with the same imped-
ance to insure optimum performance from the amplifier.
The amp 2 speaker jacks (#26) carry the chorus signal
(when the chorus is on) while the amp 1 jacks (#25) are
“dry” (without the chorus effect).
NOTE: The total impedance for each side should not be
less than 4 ohms.
IMPORTANT NOTE ABOUT CERTAIN EXPORT UNITS:
In some areas 1/4” speaker jacks are not acceptable
for use on amplifiers capable of high output power
levels. For this reason the 1/4” speaker jacks on your
amplifier may be sealed – in this case, use the
Speakon
®
jacks provided.
27: STEREO LINE IN: When using a stereo effects
deivce, connect its output here. This stereo 1/4” phone
jack is wired as follows: Ring = amp 1, tip = amp 2, sleeve
= ground.
28: STEREO LINE OUT: When using a stereo effects
deivce, connect this jack to its input. This stereo 1/4”
phone jack is wired as follows: Ring = output 1, tip = out-
put 2, sleeve = ground.
If your effects device has stereo input and output jacks,
use a pair of three-conductor stereo patch cords to con-
nect to it. If the device has separate left and right jacks, use
a pair of one-stereo-male to two-mono-female Y-adapters
to make the connections, as shown to the right.
29: MONO LINE OUT: When using a mono effects
device, connect this jack to its input.
30: CHANNEL/GAIN SELECT FOOTSWITCH: Plug a
dual footswitch (such as the Crate CFP-2 or the “stereo”
plug of the Crate CFP-3) here to control Channel Selection
and the Gain Select button. The footswitch overrides the
front panel switches (#5 and 9) and is wired as follows:
Ring = Gain Select, tip = Channels, sleeve = ground.
31: CHORUS/EXPANDER FOOTSWITCH: Plug a single
footswitch (such as the Crate CFP-1 or the “mono” plug of
the Crate CFP-3) here to control the Chorus/Expander.
The footswitch overrides the front panel on/off switch
(#17); selection between the Chorus and the Expander is
still controlled by the front panel selector switch (#18).
Connecting to the Insert jack:
The Insert jack (#16) lets you patch external effects into the
amplifier just prior to its chorus/expander 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.
WARNING: DO NOT attempt to use headphones in the
Speaker jacks! Permanent hearing damage could result!
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
25
24
26
28
27
29
30
31
Speakon is a registered trademark of Neutrik U.S.A.
