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Important Safeguards and Precautions:
All Crate products are designed for continuous safe operation.
Abiding by the following rules can help prevent damage to your
amplifier, yourself and others.
• The amplifier is equipped with a three-pronged AC power
cord. To reduce the risk of electrical shock, NEVER remove
or otherwise attempt to defeat the ground pin of the power
cord.
• Connect the amplifier ONLY to a properly grounded AC
outlet of the proper voltage for your amp.
• Avoid sudden temperature extremes, rain and moisture.
Also, avoid sudden and intense impact. (If the unit has
been subjected to any of the preceding abuses, have it
looked at by an authorized service center.)
• Do not expose the unit to splashing or dripping liquid. Do
not place liquid filled objects on the unit.
• NEVER set the amplifier on a support that will not bear its
weight.
• Always keep the total speaker impedance at or above the
rated load.
• Unplug the amplifier before cleaning it. NEVER spray liquid
cleaners onto the amplifier. Wipe it with a slightly damp-
ened, lint-free cloth to remove dirt and film.
• DO NOT use the amplifier if it has sustained damage to the
chassis, controls, or power cord. Refer the unit to an
authorized service center for inspection.
• Prolonged exposure to high volume levels may cause per-
manent hearing loss or damage. Such damage is progres-
sive and irreversible!
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The Front Panel:
1: INPUT: Use this 1/4” jack to connect your guitar to the amplifier by means of a shielded instrument cable.
OVERDRIVE CHANNEL: A high gain channel giving you sounds from a slight edge to serious overdrive.
2: GAIN 1: Use this control to adjust the amount of light distortion for the Overdrive channel. Gain 1 pro-
duces less intense distortion than Gain 2 (#3) and is active when the Gain switch (#5) is in the out position.
3: GAIN 2: Use this control to adjust the amount of heavy distortion for the Overdrive channel. Gain 2 pro-
duces more intense distortion than Gain 1 (#2) and is active when the Gain switch (#5) is depressed.
4: SHAPE: Use this control to “dial in” the tone for the Overdrive channel when Gain 2 is selected. Rotating
the control counterclockwise enhances the mid frequencies, while rotating the control clockwise enhances
the low and high frequencies. This control is active only when Gain 2 is selected.
5: GAIN: Use this switch to select which gain control is active for the Overdrive channel. With the switch in
the out position, Gain 1 is selected. When the switch is depressed, Gain 2 is selected.
6: LOW: Use this control to adjust the low frequency level of the Overdrive channel.
7: HIGH: Use this control to adjust the high frequency level of the Overdrive channel.
8: LEVEL: Use this control to adjust the output level of the Overdrive channel.
9: CHANNEL SWITCH: Use this switch to select either channel. With the switch in the out position, the
Clean channel is selected. When the switch is depressed, the Overdrive channel is selected.
CLEAN CHANNEL: A normal gain channel designed to give you crystal clear sounds to medium distortion.
10: LEVEL: Use this control to adjust the output level of the Clean channel.
11: LOW: Use this control to adjust the low frequency level of the Clean channel.
12: MID: Use this control to adjust the midrange frequency level of the Clean channel.
13: HIGH: Use this control to adjust the high frequency level of the Clean channel.
14: REVERB LEVEL: Use this control to adjust the amount of reverberation: in its full counter clockwise
position the signal will be “dry” (without any reverb). As you rotate the control clockwise the amount of rever-
beration increases.
15: INSERT: Use this jack to connect an external effects device to the amplifier. Use a stereo 1/4” male Y
connector: ring = send, tip = return, sleeve = ground. (Refer to the illustration to the right.)
16: EXTERNAL SPEAKER: Use this jack to connect the amplifier to an external speaker. The internal
speaker is disconnected when this jack is used. The minimum impedance for the external speaker is 8 ohms.
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17: ON LED: This LED will illuminate when power is applied to the amplifier.
18: POWER: Use this switch to turn the amplifier on and off.
19: AC LINE CORD: (Rear panel, not shown:) This grounded power cord is to be plugged into a ground-
ed power outlet, wired to current electric codes and compatible with voltage, power, and frequency require-
ments stated on the rear panel. Do not attempt to defeat the safety ground connection.
20: FUSE: (Rear panel, not shown:) The fuse protects the amplifier from damages caused by a faulty AC
power source and/or other problems. If the fuse opens, replace it ONLY with the same size and type. If
fuses continue to fail, check the AC source – if the source is okay, contact your Crate dealer for service
information.
21: CHANNEL SELECT / GAIN FOOTSWITCH JACK: (Rear panel, not shown:) Use this jack to connect
the stereo 1/4” plug of the supplied three-button footswitch for remote control of channel selection and gain
selection.
22: REVERB FOOTSWITCH JACK: (Rear panel, not shown:) Use this jack to connect the mono 1/4” plug
of the supplied three-button footswitch for remote control of reverb on and off.
CONNECTING TO THE INSERT JACK:
Stereo-to-mono Y-cord:
Y-adapter and 2 cables:
TIP
RING
SLEEVE
RETURN
TIP
to Insert
jack
to Insert
jack
SEND
RING
GROUND
SLEEVE
The Insert jack (#15) allows
you to patch external effects
into the amplifier just prior
to its power amp stage. Use
Crate’s STP201, STP202 or
SP203 stereo-to-mono Y
cord or an adapter such as
Crate’s YPP117 and two
1/4” mono signal cables to
connect the effect as shown
to the immediate right.
(STP201, 3'
STP202, 6'
STP203, 9')
(YPP117)
(1/4"-TO-1/4"
MONO SHIELDED
CABLES)
to
to
effect
"IN"
to
to
effect
"IN"
effect
"OUT"
jack
effect
"OUT"
jack
jack
jack
External Effect
External Effect
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Suggested Settings:
Clean:
Blues:
Rhythm:
Lead:
6
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System Block Diagram:
7
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MX65R TECHNICAL SPECIFICATIONS:
Output Power Rating
65 watts RMS @ 5% THD 8 ohms, 120 VAC
Gain, Overdrive Channel
Gain, Clean Channel
Gain 1 = 88dB, Gain 2 = 110dB
58dB
Tone Control Range. Low
Tone Control Range, Mid
Tone Control Range, High
Overdrive = 11dB @ 80Hz, Clean = 22dB @ 80Hz
Overdrive = Shape Control, Clean = 14dB @ 600Hz
Overdrive = 10dB @ 10kHz, Clean = 28dB @ 10kHz
Maximum Input Signal Accepted
Internal Speaker
7 volts peak-to-peak
12” Crate Custom Design, 8 ohm
Power Requirements
120 VAC, 60Hz, 90VA
100/115VAC, 50/60Hz, 90VA
100/115VAC, 50/60Hz, 90VA
Size and Weight
17.5” H x 20” W x 11” D, 34 lbs.
The MX65R is covered with a durable black Tolex material: wipe it clean with a lint-free cloth.
Never spray cleaning agents onto the cabinet. Avoid abrasive cleansers which would damage the finish.
Crate continually develops new products, as well as improves existing ones. For this reason, the specifications
and information in this manual are subject to change without notice.
@2001 SLM Electronics, a division of St. Louis Music, Inc • 1400 Ferguson Avenue • St. Louis, MO 63301
18-159-51 • 030603
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