Rear connections – Nady Systems MPM 4130 User Manual

Page 6

REAR CONNECTIONS

(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
These 1/4” (6.3mm) jacks are daisy-chained together internally
and powered by the mono ampliﬁer output stage. Use speaker
cables to connect these jacks to your speaker cabinets.

CAUTION: The minimum allowed total impedance connected
to the mono ampliﬁer is 4 ohms ( 8 ohms per output).
Connecting speaker loads with less than 4 ohms total
impedance will degrade performance and may harm the amp.

(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