Rolls PM50SE User manual

Owners Manual
Rolls Corporation
Salt Lake City, UT
2/02
LIMITED WARRANTY
This product is warranted to the original consumer purchaser to be
free from defects in materials and workmanship under normal installation, use
and service for a period of one (1) year from the date of purchase as shown on
the purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be
limited to repair or replacement (at our option), during the warranty period of
any part which proves defective in material or workmanship under normal
installation, use and service, provided the product is returned to Rolls Corpora-
tion, TRANSPORTATION CHARGES PREPAID. Products returned to us or to
an authorized Service Center must be accompanied by a copy of the purchase
receipt. In the absence of such purchase receipt, the warranty period shall be one
(1) year from the date of manufacture.
This warranty shall be invalid if the product is damaged as a result of
defacement, misuse, abuse, neglect, accident, destruction or alteration of the
serial number, improper electrical voltages or currents, repair, alteration or
maintenance by any person or party other than our own service facility or an
authorized Service Center, or any use violative of instructions furnished by us.
This one-year warranty is in lieu of all expressed warranties,
obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR
LIABILITIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICU-
LAR PURPOSE, SHALL BE LIMITED IN DURATION TO THE ONE YEAR
DURATION OF THIS WRITTEN LIMITED WARRANTY. Some states do not
allow limitations on how long an implied warranty lasts, so the above limitation
may not apply to you.
IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS
OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSO-
EVER. Some states do not allow the exclusion or limitation of special,
incidental or consequential damages so the above limitation or exclusion may
not apply to you. This warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
PM50s
Personal Monitor
Amplifier
PM50s Personal
Monitor Amplifer
The PM50 is the "more me" box. It allows you
to mix a mic signal and a monitor signal and
hear them via headphones.
• XLR Mic In & Pass Thru
• Ground Lift on XLR Thru
• Mono or Stereo 1/4" Monitor Input
• 1/4" and 1/8" Phone Outputs
• Lots of output level, it's loud.
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
Power: 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)
9 - 15
VDC
MIC
INPUT
MIC
THRU
MONITOR
INPUT
PHONES
MIC
LEVEL
MONITOR
LEVEL
PM50s
PERSONAL
MONITOR AMP
pwr
ster
mon
gnd
lift

INTRODUCTION
Thank you for your purchase of the PM50s Stereo Personal Monitor
Amplifier. This unit is a unique device for monitoring ones self and pro-
gram material at the same time. It has a monitor level control and a mic
level control, a mic pass-through XLR jack, 1/4" and 1/8" phone jacks,
and a switchable mono/stereo 1/4" monitor input jack. The Mic In and
Thru has a switchable ground lift for 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 pass-
through 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.
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: One
1/4" Stereo jack and one 1/8"
(3.5mm) jack for connection to
stereo headphones or ear-
phones.
WARNING
USING THIS SYSTEM AT EXCESSIVE VOLUMES CAN CAUSE
PERMANENT HEARING DAMAGE.
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 - avoid or damage may occur
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.
9 - 15
VDC
MIC
INPUT
MIC
THRU
MONITOR
INPUT
PHONES
MIC
LEVEL
MONITOR
LEVEL
PM50s
PERSONAL
MONITOR AMP
pwr
ster
mon
gnd
lift