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GX-40C+/40D Amplifier
22: POWER CORD: This heavy-duty, grounded, three wire
power cord is to be plugged into ONLY a safely-wired, ground-
ed 120 volt 60 cycle AC power outlet. DO NOT attempt to
defeat the ground connection of this cable! If your amplifier was
purchased outside of the United States, see its rear panel for
the proper power rating.
23: EXTERNAL SPEAKERS: You may connect the outputs of
the GX-40C+/D to your external speakers having a rated
impedance of at least 2 ohms each, using these jacks. When
connecting speakers, use a matched pair: two with the same
impedances, to insure optimum performance from the amplifier.
Since these are series conenctions, there is no chance of dam-
aging the amplifier with too small of an inpedacne load.
24: STEREO HEADPHONE / LINE OUT JACK: This dual-
function stereo jack provides you with a means to connect a
pair of stereo headphones for private practice sessions, or to
obtain a stereo line-level output signal to send to a recording
console, mixing board or to another pair of power amplifiers.
The internal speakers are muted whenever a plug is inserted
into this jack. The wiring for the jack is as follows:
Tip: Right channel
Ring: Left channel
Sleeve: Common ground
25: STEREO EFFECTS LOOP: Connect the SEND jack to the
inputs of your stereo effects device to send a post-EQ, post-
chorus, pre-amplified signal for processing. Connect the out-
puts of the effects device to the RETURN jack to return the
processed signal to the amplifier. The jacks are stereo 1/4”
phone jacks, wired as follows:
Tip: Right channel
Ring: Left channel
Sleeve: Common ground
If your effects device has stereo input and output jacks, use a
pair of three-conductor stereo patch cords to connect 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 con-
nections.
26: FOOTSWITCH: Plug a dual footswitch (such as the Crate
model FS-60) here to control channel selection and chorus
on/off. This stereo 1/4” phone jack is wired as follows:
Tip: Channel select
Ring: Chorus on/off
Sleeve: Common ground
Connecting to the Insert jack:
The Insert jack (#16) lets you patch external effects into the ampli-
fier 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.
22
PATENT #5,032,796
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
ST. LOUIS, MO 63133
EXTERNAL SPEAKERS
20W RMS PER CHANNEL
2 OHM MIN. LOAD
LEFT RIGHT
23 24
RISK OF ELECTRIC
SHOCK - DO NOT OPEN
CAUTION
RISQUE DE CHOC ELECTRIQUE.
NE PAS OUVRIR.
TO REDUCE THE
RISK OF FIRE OR
ELECTRIC SHOCK,
DO NOT EXPOSE
THIS EQUIPMENT
TO RAIN OR MOIS-
TURE.
AVIS:
MODEL:
SERIAL:
LINE: V ~ Hz
WATTS: MAX
GX-40C+
GX40C12006902
120 60
STEREO
EFFECTS LOOP
STEREO
HEADPHONES/
LINE OUT
FOOTSWITCH
RETURN CHANNEL
SELECT/
CHORUS
SEND
2625
TIP
RING
SLEEVE
SEND
RETURN
GROUND
Stereo-to-mono Y-cord:
to Insert jack
(CYC6MS)
(CA11Y)
"Send"
plug:
to
effect
"IN"
"Return"
plug:
from
effect
"OUT"
External Effect
TIP
RING
SLEEVE
Y-adapter and 2 cables:
to Insert jack
to
effect
"IN"
from
effect
"OUT"
Ring =
"Return"
Tip =
"Send"
External Effect
REAR PANEL:
WARNING: DO NOT attempt to use headphones in the
Speaker jacks! Permanent hearing damage could result!