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REAR CONNECTIONS
6
(13)
(11)(12)
(14)
REAR PANEL
(11) POWER SWITCH
Turns the unit ON or OFF. Always turn level controls down before
turning on the unit.
(12) VOLTAGE SELECTOR SWITCH
For selecting the proper voltage (115/230VAC) to match the
power supply in your area.
Note: To avoid damage to your unit, always make sure this switch
is set to the correct supply voltage. Damage caused by improper
use is not covered by the warranty.
(13) POWER CONNECTOR WITH FUSE HOLDER
This standard IEC power cord receptacle is used to connect the
AC power to your unit. It features a built-in fuse holder for a
5X20mm, (4A/250V for 115VAC, and 2A/250V for 230VAC
operation) fast-blow fuse. If the fuse continuously blows, shut off
the unit and have it serviced by qualified service personnel.
(14) MONO SPEAKER OUTPUTS
Two 1/4” (6.3mm) jacks, each powered by its own separate
amplifier output stage, for connecting one or two 8 ohms speaker
cabinets.
CAUTION: Do not overload the MPM 4130 with speaker loads
less than 4 ohms as this will degrade performance and may
harm the unit.
(15)
(15) MAIN OUT/AMP IN
This unbalanced insert point is a break between the main out and
the mixer main signal and the main amplifier. This insert is a 1/4”
TRS phone jack which is normally bypassed. When a 1/4” TRS
phone plug is inserted, the signal path is broken. Depending on
the wiring of the plug inserted into this jack, the MPM 4130 can
be used as either a mixer for a power amplifier or as a power
amplifier for an external input line level signal from a preamp or
mixer. Alternatively the jack can be used as an insert point for an
external effects device to process the output signal from the mixer
section of the MPM 4130 and return it pre the power amplifier
output. (See BLOCK DIAGRAM on page 10).