Rolls PM50s Users Manual
have other rights which vary from state to state.
not apply to you. This warranty gives you specific legal rights, and you may also
incidental or consequential damages so the above limitation or exclusion may
EVER. Some states do not allow the exclusion or limitation of special,
OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSO-
INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS
may not apply to you.
allow limitations on how long an implied warranty lasts, so the above limitation
DURATION OF THIS WRITTEN LIMITED WARRANTY. Some states do not
LAR PURPOSE, SHALL BE LIMITED IN DURATION TO THE ONE YEAR
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICU-
LIABILITIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED
obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR
authorized Service Center, or any use violative of instructions furnished by us.
maintenance by any person or party other than our own service facility or an
serial number, improper electrical voltages or currents, repair, alteration or
defacement, misuse, abuse, neglect, accident, destruction or alteration of the
(1) year from the date of manufacture.
receipt. In the absence of such purchase receipt, the warranty period shall be one
an authorized Service Center must be accompanied by a copy of the purchase
tion, TRANSPORTATION CHARGES PREPAID. Products returned to us or to
installation, use and service, provided the product is returned to Rolls Corpora-
any part which proves defective in material or workmanship under normal
limited to repair or replacement (at our option), during the warranty period of
the purchaser’s receipt.
and service for a period of one (1) year from the date of purchase as shown on
free from defects in materials and workmanship under normal installation, use
LIMITED WARRANTY
IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL,
This one-year warranty is in lieu of all expressed warranties,
• Lots of output level, it's loud.
• 1/4" and 1/8" Phone Outputs
• Mono or Stereo 1/4" Monitor Input
This warranty shall be invalid if the product is damaged as a result of
• Ground Lift on XLR Thru
• XLR Mic In & Pass Thru
hear them via headphones.
to mix a mic signal and a monitor signal and
The PM50 is the "more me" box. It allows you
The obligation of Rolls Corporation under this warranty shall be
This product is warranted to the original consumer purchaser to be
Personal Monitor
gnd
lift
PM50s Personal
Monitor Amplifer
PM50s
Amplifier
MIC
THRU
PERSONAL
MONITOR AMP
PM50s
PHONES
MIC
INPUT
pwr
MIC
LEVEL
MONITOR
INPUT
ster
mon
9 - 17
VDC
MONITOR
LEVEL
Salt Lake City, UT
2/02
Rolls Corporation
SPECIFICATIONS
Max Input Level: -20 dB XLR, 40 dB monitor
Output Impedance: 10 Ohms
Gain: 15 dB 1/4", 50 dB XLR
Bandwidth: 20 - 20 kHz
S/N Ratio: 90 dB
Po w er: 9 - 18 VAC/DC
Size: 3" x 2.5" x 1.25" (7.6 x 6 x 3.2 cm)
Weight: 1 lb (.45 Kg)
Owners Manual
INTRODUCTION
Thank you for y our purchase of the PM50s Stereo P ersonal Monitor
Amplifier. This unit is a unique device f or 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 jac k, 1/4" and 1/8" phone jac ks,
and a switchable mono/stereo 1/4" monitor input jac k. The Mic In and
Thru has a switchable ground lift f or ellimination of ground loops .
The PM50s 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 PM50 to monitor their voices over
the musicians. And many sound technicians use the PM50 as a quick line
tester to troubleshoot audio systems.
DESCRIPTION
MIC THRU: XLR jack paralleled (hard-wired) to the MIC INPUT jack for passthrough to a mixer or other input device.
MIC INPUT: XLR balanced jack for connection to a condenser or dynamic
microphone.
gnd/lift: Header jumper for connecting or disconnecting the XLR ground (pin 1) to
cassis ground. The PM50s is configured at the factory with pin 1 connected to
ground.
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.
stereo/mono: Header jumper to configure the Monitor input for TRS stereo or TS
mono operation. The PM50s is configured at the factory in stereo mode.
WARNING
USING THIS SYSTEM AT EXCESSIVE VOLUMES CAN CAUSE
PERMANENT HEARING DAMA GE.
USE AS LOW A VOLUME AS POSSIBLE
In order to use this system safely, avoid prolonged listening at excessive
sound pressure levels. Please use the following guidelines established by
the Occupational Safety Health Administration (OSHA) on maximum time
exposure to sound pressure levels before hearing damage occurs.
90 dB SPL at 8 hours
95 dB SPL at 4 hours
100 dB SPL at 2 hours
105 dB SPL at 1 hour
110 dB SPL at 1/2 hour
115 dB SPL at 15 minutes
120 dB SPL -
It is difficult to measure the exact Sound Pressure Levels (SPL) present at the
eardrum in live applications. In addition to the volume setting on this Personal
Monitor unit, the SPL in the ear is affected by ambient sound from floor wedges or
other devices. The isolation provided by the fit of quality earphones is also an
important factor in determining the SPL in the ear.
Follow these guidelines in the use of this product to protect your ears from damage:
1. Turn up the volume only to the point where hearing is comfortable.
2. Ringing in the ears may indicate that the levels are too high. Lower the volume
level.
3. Have your ears checked by an audiologist on a regular basis. If you experience
wax buildup in your ears, stop using the system until an audiologist has examined
your ears.
avoid or dama ge may occur
9 - 17 VAC/DC: For connection to
the external AC power adapter.
MONITOR VOLUME: Adjusts the
level of the incoming signal from
the Monitor Input.
MIC VOLUME: Adjusts the level of
signal coming from the MIC INPUT.
HEADPHONE OUTPUTS: Two 1/4"
Stereo jacks for connection to
stereo headphones.
MIC
THRU
gnd
lift
INPUT
PERSONAL
MONITOR AMP
PM50s
PHONES
pwr
MIC
MIC
LEVEL
MONITOR
INPUT
ster
mon
9 - 17
VDC
MONITOR
LEVEL
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