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DESCRIPTION
FRONT PANEL
R L
MASTER
LEVEL
PHONE/AUX
LEVEL
PHONE/AUX
OUTPUTS
pwr
LEVEL LEVEL LEVEL LEVEL
MIC LEVEL
PAN
R L
BAL
R L
BAL
R L
BAL
R L
BAL
Channel One
Mic Level: Adjusts the signal level of the microphone preamp circuitry.
Pan: Adjusts the relative level of the microphone signal to the Right and Left
Outputs.
Note: Channels Two through Five are identical.
Channel Two - Five Section
Level: Adjusts the overall signal level of the channel.
Bal: Adjusts the relative level of the channel signal to the Right and Left outputs.
Master Level : Controls the overall output level of the MX122.
Phone/Aux Level: Adjusts the output level of the Phone/Aux Outputs.
Phone/Aux Outputs: 1/4” and 1/8” (3.5mm) TRS stereo jacks for monitoring the
master right and left signals, also may be used as an alternative stereo output for
connecting to another stereo amplifier.
PWR: Indicates that the MX122 is connected to an AC outlet and is on.
REAR PANEL
12 VDC: Connects to the included Rolls PS27 12 VDC power supply.
Master Outputs
Right and Left Out: 1/4” TRS balanced main output jacks. For connection to an
amplifier, recording device or signal processor.
Channel Inputs
Note: Channels Two through Five are identical.
Right / Left: 1/4” TS unbalanced jacks for connection to the right and left outputs of
a stereo instrument. If a mono signal is being sent,use the Right input, for a Tip-
Ring-Sleeve stereo signal, use the Left input.
Mic Input Channel 1: Balanced XLR jack for connection to a condenser or dy-
namic microphone.
Phantom Power: Jumper connector for applying +12V phantom power to the Mic
XLR Input jack.
Mic Trim: Adjusts the initial gain of the Mic preamp circuitry.
INTRODUCTION
Thank your for your purchase of the Rolls MX122 MiniMix Pro Mixer. The MX122
is a line-level mixer featuring a single mic input and four channels of stereo inputs.
INSPECTION
1. Unpack and inspect the MX122 box and package.
Your MX122 was carefully packed at the factory in a protective carton. Nonethe-
less, be sure to examine the unit and the carton for any signs of damage that may
have occurred during shipping. If obvious physical damage is noticed, contact the
carrier immediately to make a damage claim. We suggest saving the shipping
carton and packing materials for safely transporting the unit in the future.
2. Please visit our website at www.rolls.com and click on the Register Warranty
Here text, then fill out the Warranty Registration info to register your MX122. Or
you may complete the enclosed Warranty Registration Card and return it to the
factory.
FEATURES
• 1 XLR balanced Mic Input with rear panel Trim control
• +12VDC Phantom Power
• 4 individual 1/4” Stereo Inputs
• Balanced 1/4” TRS Outputs
• Balance control on each channel (Pan on the Mic channel)
• Headphone / Auxiliary Outputs
• External Power Supply included for low noise operation
1
SCHEMATIC