Rolls MX124 User manual

Quick S

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ETTING THE LOW CUT AND PHANTOM POWER SWITCHES

n the left side are the Phantom Power and Low-Cut switches.

As shown here, under each number is a P indicating Phantom Power, and an L which

ndicates Low-Cut.When the P switch is DOWN, the phantom power is ON, when it is UP ,
the phantom power is OFF. When the L switch is UP, the low-cut is ON, when it is DOWN,
the low-cut is OFF.

Phantom
Low Cut
Phantom
Low Cut
Phantom
Low Cut
Phantom
Low Cut

Phan Pwr ON=dwn
Low Cut ON=up

X124

roMix IV

SPECIFICATIONS

nput Impedance: 600 Ohms

utput Impedance: XLR 600 Ohms, 1/4” and 1/8” 10 Ohms
HD + Noise: .02%
/N Ratio: 84 dB
requency Response: 25 Hz - 16 kHz (+0 / -3 dB)

ax Output Level: + 14 dB
ax Input Level: -14 dB
ax Gain: +55 dB

ow Cut: -3 dB @ 100 Hz

urrent Draw: 30 mA

hantom Power: +18 VDC

onnectors: 4 Female XLR, 2 Male XLR, 1 1/4” TRS, 1: 1/8” (3.5mm)

DC Power Jack (5.5 X 2.1 mm tip negative)

ROLLS CORPORATI

SALT LAKE CITY, UTA

10/0

ize: 6.3”w x 3.7”d x 2.3” h

Weight: 1.5 lbs.

tart Guide

INTRODUCTION

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hank you for your purchase of the MX124 ProMix IV. This unit is designed and manufac­tured to mix four microphones together and send their combined signals out stereo trans­former-balanced XLR outputs, or front panel 1/4” and 1/8” stereo outputs. The individuall
switchable phantom power and low-cut switches provide the nal touches which make the

X124 a valuable tool for any sound reinforcement, musical, recording, or install applica-

tion.

INSPECTION

1. Unpack and Inspect the MX124 package
Your MX124 was carefull
sure to examine the unit and the carton for any signs of damage that may have occurred
during shipping. If obvious ph
make a damage claim. We suggest saving the shipping carton and packing materials for
safel

transporting the unit in the future.

2. Please visit our website at www.rolls.com
text and follow the instructions to register

tration Card and return it to the factor

packed at the factory in a protective carton. Nonetheless, be

sical damage is noticed, contact the carrier immediately to

click on the Register Your Warranty Here

our MX124. Or complete the Warranty Regis--

.

DESCRIPTION

hone/Aux: 1/4” and 1/8” (3.5mm) TRS jacks which may be connected to a pair of head-

phones for personal monitoring, or to a stereo unbalanced input of a signal processor,

mplier, or camera.

lip LED: Indicates that clipping is about to occur or occurring in the MX54s circuitry. This

ED begins to light 3dB below actual circuit clipping.

IGHT HAND SIDE
Battery compartment which houses two 9-Volt (alkaline recommended) batteries.
VDC power jack for connection to the Rolls PS27s; VDC (outside of the ring is

positive) external power suppl

Power Switch: Applies power to the MX124.

.

SCHEMATIC

ic Input: 1 - 4: XLR balanced inputs for connection to any standard dynamic or condens­r microphone.
ight and Left Outputs: Transformer balanced XLR output jacks for connection to the next

device in the signal chain such as a signal processor or amplier .

ight and Left Trim controls: Screwdriver adjustable controls to vary the level of each

output. Turning these controls clockwise increases the output level. These controls do not

ect the Aux/Headphone Output.

RONT PANEL

ic Level 1 - 4: These controls adjust the level of the corresponding Mic channel. The

level varies from -innity (o) to max gain.

AN 1 - 4: Adjusts the relative right/left level of each channel.