l o u d
INTRODUCTION
. . . a n
- B r o
- L i v
- S t u
Thank you for your purchase of the PM55 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, 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.
e r s o n a l P M M o
The PM55 features all these benefits in a convenient battery-pow-
ered package.
P M
DESCRIPTION
lift gnd
MIC
MIC
IN
MONITOR
IN
MIC THRU: XLR jack paralleled
(hard-wired) to the MIC INPUT
jack for pass-through to a mixer
or other input device.
THRU
POWER
ster
mon
lift/gnd: Header jumper for con-
necting or disconnecting the XLR
ground (pin 1) to cassis ground.
The PM55 is configured at the
factory with pin 1 connected to
ground.
MIC INPUT: XLR balanced jack
for connection to a condenser or
dynamic microphone.
PERSONAL
MONITOR AMP
9 - 15
+
VDC
PM55
MIC
MONITOR
LEVEL
LEVEL
pwr
PHONES
PM55 Personal Monitor Amplifier
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.
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 configure the Monitor input for TRS
stereo or TS mono operation. The PM55 is configured at the factory
in stereo mode.
• XLR Mic In & Pass Through
• Ground lift on XLR signal
• Stereo/Mono 1/4" Monitor Input
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.
• Headphone and earphone outputs
• Battery or AC operation
• Lots of output level, it's loud.
MONITOR LEVEL: Adjusts the level of the incoming signal from the
Monitor Input.
SPECIFICATIONS
Max Input Level:
Input Impedance:
-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)
Output Impedance:
Gain:
Bandwidth:
S/N Ratio:
Power:
SCHEMATIC
To view the PM55 schematic, visit our website at www.
rolls.com.
Size:
Weight:
PM55 MONITOR
WARRANTY
For information on the Rolls One Year Limited Warranty, and
to register this product, visit our website at www.rolls.com
Rolls Corporation
Salt Lake City, UT
09/08
6
4
75889 05055
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