Rolls PM50sOB Owner's Manual

INTRODUCTION

Thank you for your purchase of the PM50sOB Stereo Personal
Monitor Amplifier. 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, ear-
phone and headphone output jacks, and a switchable stereo/mono
1/4" monitor input jack.
The PM50sOB 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 PM50sOB to monitor
their voices over the musicians. And many sound technicians use
the PM50 as a quick line tester to troubleshoot audio systems.
The PM50sOB features all these benefits in a convenient battery-
powered package. The PS27 12 VDC adapter is sold separately.

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- lift/gnd
necting or disconnecting the XLR
ground (pin 1) to cassis ground.
The PM50sOB is configured at
the factory with pin 1 connected
to ground.
MIC INPUT MIC INPUT: XLR balanced jack MIC INPUT: XLR balanced jack
for connection to a condenser or
dynamic microphone.
MONITOR INPUT MONITOR INPUT: 1/4" TRS 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 PM50sOB on and off.
BATTERY BATTERY: Compartment for 9 Volt (alkaline preferred) battery. BATTERY: Compartment for 9 Volt (alkaline preferred) battery.
stereo/mono: Header jumper to configure the Monitor input for TRS stereo/mono
stereo or TS mono operation. The PM50sOB is configured at the
factory in stereo mode.
9 - 15 VDC: For connection to the optional Rolls PS27 AC power
adapter.
PHONE OUTPUTS: One 1/4" TRS stereo headphone output, one
1/8" TRS stereo earphone output.
pwr: Indicates the PM50sOB is on. pwr:
MIC LEVEL: Adjusts the level of signal coming from the MIC INPUT.
MONITOR LEVEL: Adjusts the level of the incoming signal from the
Monitor Input.

SCHEMATIC

To view the PM50sOB schematic, visit our website at
www.rolls.com. Download the online PM50sOB owners
manual.

WARRANTY

For information on the Rolls One Year Limited Warranty, and
to register this product, visit our website at www.rolls.com
and clear versatile,
Station Monitor
PM50sOB
PM50sOB PM50sOB
PM50sOB Personal Monitor Amplifier
The PM50sOB 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.

SPECIFICATIONS

Max Input Level:
Input Impedance:
Output Impedance:
Gain:
Bandwidth:
S/N Ratio:
Power:
Size:
Weight:
Rolls Corporation
Salt Lake City, UT
11/05
monitoring. personal
need you anywhere
Broadcast
Live
Studio
Personal PM50sOB
-20 dB XLR, 40 dB monitor
600 Ohm Mic,
22k Ohm Monitor
10 Ohms
15 dB 1/4", 50 dB XLR
50 - 20 kHz
90 dB
9 - 15 VDC
3" x 2.5" x 1.25"
(7.6 x 6 x 3.2 cm)
1 lb (.45 Kg)
loud
...
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