Rolls MP213 Users Guide

distortion.
nies on mic inputs. It also means much lower
than transistor inputs used by most compa­better common mode rejection ratio (CMRR)
in a small package. This equates to a 40 db
tation amplier for studio grade performance
The MP213 uses a servo balanced instrumen-

toring output.
use as camera microphone mixer or a moni­1/8” stereo output is specially designed for
for use with a condenser microphone. The
for each channel. Phantom power is included
single Gain control with a Clip LED indicator
and 1/8” inputs. XLR and 1/8” outputs, with a
variety of applications. The unit has both XLR
expensive microphone pre amplication for a
The MP213 is designed to provide simple, in-

- +48 Volt Phantom Power
ing or monitoring

- 1/8” Output for stereo microphone record-

- Clip LED indicators

- Gain Controls

- Dual channel summed mono XLR output

- XLR Outputs

- XLR and 1/8” Mic Inputs
FEATURES

What's in the box?

1 - Made in USA MP213
1 - 15V power supply PN PS27s
1 - This owners manual

Rolls Corporation
Salt Lake City, UT
7/23

MP213 Dual-Mic Preamp

SPECIFICATIONS

Connectors: Inputs: XLR, 1/8” (3.5mm) TRS balanced Mic In
Outputs: XLR balanced, 1/8” Stereo
Input Impedance: 10K Ohms bal, unbal.
Max Input Level: +4 dBV XLR bal, +10 dBV unbal.
Max Gain: 60 dB/XLR, 54 dB 1/4”
Phase Shift: <10 deg. 20 Hz - 20 kHz
EIN: -108 dB max.
THD: <.01%
IMD (SMPTE) <.01%
CMRR: > 80dB
Phantom Power: +48 Volts, 6 mA
Power: 15 VDC adapter
Weight: 1 lbs (.45Kg)
Size: 6.75” x 4.2” x1.4”

- Home

- Studio

- Broadcast

... Anywhere you need a clean preamplier for your favorite

dynamic or condenser microphones

Connection guide

Channel 1 and 2 are identical in operation and features

Stereo TRS 1/8” output: Chan­nel 1 is on the right output and

channel 2 will be on the left.

Mono XLR output: This is

a mono summed output for
both left and right outputs.

OUTPUT: XLR jack

for signal output.

Female XLR jack

for signal input.

INPUT

BALANCED BALANCED

CHANNEL 1 - RIGHT

INPUT

GAIN

6 dB 50

OUTPUT

TRS

CH1 RIGHT

CH2 LEFT

STEREO

OUTPUT

OUTPUT

BALANCED BALANCED

Dual-Mic Preamp

CHANNEL 2 - LEFT

INPUT

clip

48V

PHANTOM

POWER

INPUT

GAIN

6 dB 50

MONO

BALANCED

CH1 & 2

COMBINED

OUTPUT

MP213

clip

DC jack for connec­tion to the included
Rolls PS27s power
supply

PWR

15

VDC

+

-

power

INPUT: 1/8” (3.5mm)

GAIN: Controls

the amount of

signal increase to
the MP213.

CLIP: LED for

indicating circuit
clipping. Indicates
distortion is pos­sible.

PHANTOM POWER:
When pressed in, applies
+48 volts of phantom pow­ering to both Ch 1 and Ch
2 XLR inputs.

Power switch

and LED for

indicating
power is ap­plied to the
MP213.