Rolls PM55 - Manual

PM55 Personal Monitor Station

Rolls Corporation

Salt Lake City, UT

09/08

- Studio

- Live

- Broadcast

... anywhere you need versatile, clear and

loud personal monitoring.

PM55 Personal Monitor Ampli

fi

er

The PM55 is an essential monitoring tool for studio or live
applications. It allows you to mix a mic signal and a monitor signal
and hear them via headphones.

• XLR Mic In & Pass Through

• Ground lift on XLR signal

• Stereo/Mono 1/4" Monitor Input
• Headphone and earphone outputs
• Battery or AC operation
• Lots of output level, it's loud.

PM55

PM55

PM55

SPECIFICATIONS

Max Input Level:

-20 dB XLR, 40 dB monitor

Input Impedance:

600 Ohm Mic,

22k

Ohm

Monitor

Output Impedance:

10 Ohms

Gain:

15 dB 1/4", 50 dB XLR

Bandwidth:

50 - 20 kHz

S/N

Ratio:

90

dB

Power:

9

-

15

VDC

Size:

3" x 2.5" x 1.25"

(7.6 x 6 x 3.2 cm)

Weight:

1

lb

(.45

Kg)

INTRODUCTION

Thank you for your purchase of the PM55 Stereo Personal Monitor
Ampli

fi

er. This unit is a unique device for monitoring ones self and

program material at the same time. It has a monitor level control
and a mic level control, a mic pass-through XLR jack, earphone
and headphone output jacks, and a switchable stereo/mono 1/4"
monitor input jack.

The PM55 is designed for performers who need to monitor their
own signal, such as their vocals, with the main mix. It has become
very popular with drummers who need to mix a click track with a
monitor signal. Church choir singers love the PM55 to monitor their
voices over the musicians. And many sound technicians use the
PM55 as a quick line tester to troubleshoot audio systems.

The PM55 features all these bene

fi

ts in a convenient battery-pow-

ered package.

DESCRIPTION

MIC THRU: XLR jack paralleled
(hard-wired) to the MIC INPUT
jack for pass-through to a mixer
or other input device.
lift/gnd: Header jumper for con-
necting or disconnecting the XLR
ground (pin 1) to cassis ground.
The PM55 is con

fi

gured at the

factory with pin 1

connected

to

ground.
MIC INPUT: XLR balanced jack
for connection to a condenser or
dynamic microphone.
MONITOR INPUT: 1/4" TRS
stereo jack for connection to a line source such as a mixer monitor/
auxiliary output, cassette player output, CD player output etc.
POWER: This button turns the PM55 on and off.
BATTERY: Compartment for 9 Volt (alkaline preferred) battery.
stereo/mono: Header jumper to con

fi

gure the Monitor input for TRS

stereo or TS mono operation. The PM55 is con

fi

gured at the factory

in

stereo

mode.

9 - 15 VDC: For connection to the Rolls PS27 AC power adapter.
PHONE OUTPUTS: One 1/4" TRS stereo headphone output, one
1/8" TRS stereo earphone output.
pwr: Indicates the PM55 is on.
MIC LEVEL: Adjusts the level of signal coming from the MIC IN-
PUT.
MONITOR LEVEL: Adjusts the level of the incoming signal from the
Monitor Input.

MIC

IN

MIC

THRU

MONITOR

IN

BAT

T

E

RY

PHONES

MIC

LEVEL

MONITOR

LEVEL

PM55

PERSONAL

MONITOR AMP

+

9 - 15

VDC

pwr

lift gnd

s t e r

mon

POWER

WARRANTY

For information on the Rolls One Year Limited Warranty, and
to register this product, visit our website at

www.rolls.com

SCHEMATIC
To view the PM55 schematic, visit our website at www.
rolls.com.

6

7 5 8 8 9 0 5 0 5 5

4

PM55 MONITOR