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M . FUSE—Protects the amplifier from electrical faults.
Replace a blown fuse ONLY with a fuse of the type/rating
specified on the rear panel of your amplifier to protect
your amplifier and maintain warranty coverage.
N. IEC POWER CORD SOCKET—Connect the included
power cord to a grounded AC electrical outlet in accor-
dance with the voltage and frequency ratings specified
above the input power socket on your amplifier.
O. SPEAKER OUTPUT—The internal speaker is connected
here. Unplug and connect an external speaker here if
desired.
SPEAKER CONNECTIONS
• DO NOT connect a speaker load with a total impedance
less than the minimum rating of your amplifier to pre-
vent damage to your equipment. Read the Impedance
Guidelines section on page 10.
• ONLY connect speakers with a total power handling
capacity equal or greater than the power output rating
of your amplifier to prevent damage to your equip-
ment.
• ALWAYS switch your system power OFF before connect-
ing or disconnecting speakers.
• ONLY use unshielded speaker cable of 18 gauge or
heavier (such as 16 or 14 gauge) for speaker connec-
tions. Shielded instrument cable WILL NOT work and
may damage your equipment.
P. HEADPHONES—Plug in your stereo or mono head-
phones here. Use MASTER Volume to control your head-
phone listening level. Use MUTE {C} to disable speaker
audio output if desired. NOTE: 75-ohm headphones are
ideal for use with your WorkingPro.
8
Rear Panel
Q. EFFECTS SEND / EFFECTS RETURN—Multi-purpose
jacks: EFFECTS SEND provides a preamp output that
includes the onboard tone adjustments; output level
is controlled by MASTER Volume {K}. EFFECTS RETURN
provides a power amp input that can be blended in any
ratio with the preamp signal using EFX BLEND {G}.
• EFFECTS LOOP—Connect EFFECTS SEND to your effects
• MULTIPLE AMPS—Connect EFFECTS SEND on the first
• RECORDING OR REINFORCEMENT—Connect EFFECTS
• ACCOMPANIMENT—Connect a CD player or drum
Use only standard 1/4" mono phone plugs with these
jacks. Use a stereo–to–mono adapter if your source has
a stereo plug.
The Effects Loop circuit is on a "side chain" of the main
circuit (as in studio recording consoles) to provide the
full sound of your instrument AND the diversity of your
effects units. This also reduces noise from effects units
being located after gain in the signal path.
R. FOOTSWITCH—Plug in the optional footswitch here. Use
the footswitch to select MUTE and BASS INTENSIFIER™.
◊
device input, then connect the effects device output
to EFFECTS RETURN. NOTE: Set the wet/dry control
on external effects units to the fully WET position to
prevent signal phasing problems. Set the input level on
external effects as close to 0dB as possible.
amplifier to EFFECTS RETURN on the second amp. Use
only the controls on the first amplifier—except Master
Volume which will still be active on the second amp, as
well as EFX BLEND, which should be set fully to WET.
SEND to sound equipment input.
machine to EFFECTS RETURN. Control the input level
at its source and by using the EFX BLEND control {J}.
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