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Owners Manual
Rolls Corporation
Salt Lake City, UT 10/05
4-Channel Mixer
OPERATION
Connect your various devices such as a laptop computer, wireless microphone,
or other line level devices to Inputs 3 and 4. Remember Channel 4 is MONO,
and Channel 3 is STEREO.
Connect a stereo signal source such as a CD player, cassette player, or a video
player's audio output to Channel 1, and a microphone to Channel 2. If the micro-
phone requires phantom power, move the phantom power jumper as described
on the previous page.
Adjust the levels of each channel for a desired balance of signals. Since the
MX56c has no master level, you will need to be aware of the setting of your am-
plifier. Check each mic/source level individually first for
proper level, then adjust
them for a desired mix.
SCHEMATIC
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INTRODUCTION
Thank you for your purchase of the MX56c MiniMix A/V. The unit is ideal for A/V
presentations where a microphone must be mixed with a variety of sources such
as a CD player, MP3 player, laptop computer, etc.
INSPECTION
Your MX56c was carefully packed at the factory in a protective carton. Nonethe-
the shipping carton and packing materials for safely transporting the unit in the
future.
www.rolls.com
factory.
SPECIFICATIONS
Connectors: Input: 1/4" unbal.
1/8" (3.5 mm) stereo
XLR bal.
Stereo RCA
Output: Stereo RCA Line Level
1/8" TRS Stereo Phone
1/4" TRS Instrument or Mic Level, bal.
Max Gain: Ch 1; 15 dB
Ch 2; 60 dB
Ch 3; 15 dB
Ch 4; 40 dB
Channel Crosstalk: -70 dB
Phantom Power: 9 - 16 VDC depending on power source
Max Output: + 12 dB
S/N Ratio: >80 dB
THD: <.05%
Box Size: 6.5" x 2.7" x 1.55"
Weight: 2 lbs.
When pressed IN, applies power to the MX56c
Located just below the Power Switch, this LED Indicates the MX56c is
1/8" (3.5mm) TRS stereo jack for connection to stereo headphones
INST / MIC OUT
INST / MIC OUT
to another mixer's microphone input, or to an instrument amplifier.
Adjusts the signal level of the corresponding input channel.
Compartment for housing the 9V alkaline battery.
Connects to the Rolls PS27; 12 - 16 VDC 150 mA power
TEREO OUT
The square hole between Line In 1 and Mic In 2 has the
jumper with a pair of needle-nose pliers and replace it in a horizontal position so
the jumper shorts the two pins together.
XLR input jack for connection to a dynamic or condenser
tom Power jumper is shorted together as described above.
1/8" (3.5mm" Tip-Ring-Sleeve stereo jack for connection to
1/4" Tip-Sleeve mono jack for connection to a mono line-lev-
LIMITED WARRANTY
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