WPM61 WIRELESS
PERSONAL MONITOR SYSTEM
The WPM61 is a compact yet powerful audio wireless system
for efficient in-ear monitoring for musicians and singers, and for
assistive listening. The system consists of a transmitter and
body pack receiver. The signal is very stable, even at long
ranges. Multiple receivers may be used with a single transmitter.
WPM61
Wireless Personal
• High VHF operation
• Crystal-controlled for drift free transmission
• Four channels available
• Musician in-ear monitor
• Assistive Listening
• Language interpretation
• Mobile audio recording
• Beltpack receiver has lots of volume
• 9V Battery operation (optional AC adapter available)
The WPM61 operates on the following frequencies:
216.6525 MHz, 216.0125 MHz, 216.9725 MHz & 216.3325 MHz.
Monitor System
Rolls Corporation
Salt Lake City, UT
8/02
Owners Manual
INTRODUCTION
LIMITED WARRANTY
Thank you for your purchase of the WPM61 Wireless Personal Monitor
System. This unit applies VHF frequency design, with high quality sound and
stable signal. It features a wide dynamic range, it is compact and convenient.
INSPECTION
1. Unpack and inspect the WPM61 box and package.
If obvious physical damage is noticed, contact the carrier immediately to
make a damage claim. We suggest saving the shipping carton and packing
materials for safely transporting the unit in the future.
2. Please visit our website at www.rolls.com, and register your new WPM61
by clicking on the Register Your Warranty Here line. Or, complete the Warranty
Registration Card and return it to the factory.
TABLE OF CONTENTS
Introduction ................................................... 1
Inspection ................................................... 1
Table of Contents ................................................... 1
Important Notices ................................................... 1
Description ................................................... 2
Connection ................................................... 3
Operation ................................................... 3
Specifications ................................................... 5
Warranty: ................................................... 6
IMPORTANT NOTICES
THE EARPHONES USED WITH THE WPM61 MUST BE
TRS STEREO, NOT MONO. USING MONO EARPHONES
WILL DAMAGE THE RECEIVER.
POWER SUPPLY
The WPM61 does not include an external power supply. To purchase a Rolls
PS27, contact Rolls at (801) 263-9053, or the retailer from which you purchased the system.
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 Corporation, 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 PARTICULAR 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, WHATSOEVER. 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.
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SPECIFICATIONS
DESCRIPTION
TRANSMITTER
Frequency Response: 30 Hz - 15kHz
Frequency Stability: +/-10 ppm (under 25 degrees C)
Modulation: 10kHz +/- 2kHz (1kHz 50mV)
Transmitting Power: 10mW
Spurious Emission: 80dB below carrier
Distortion: <1%
Max AF Input Signal: 500mV
Power Source: 9V battery, or or external DC 12V
Current Consumption: 28mA +/-5mA
Dimension (LxWxH): 100x63x25 mm
RECEIVER
Sensitivity: 2.5 μV min (under squelch control)
Max. Power: 20mW min (at 16 Ω speaker load)
Distortion: 3% max (under 10mW output)
Frequency Stability: +/-0.01% ppm (under 25 degrees C)
Hum and Noise: - 50dB min
Power Source: 9V DC (alkaline recommended)
Current Consumption: DC 20mA max
Dimension: 60x25x100 mm
TRANSMITTER
1. Power Switch: Turns the WPM61t on and off. When pressed in, the
unit is ON.
2. Volume Control: Adjusts the level of signal coming into the WPM61t.
3. Low Battery LED indicator: Blinks when the power is turned on and
a battery is installed, will stay lit if voltage is below 5.5 to 6 Volts.
4. Power LED Indicator: When the transmitter is being powered via
battery, this light will blink momentarily during power-up. It will light
continuously when the transmitter is operated via an external adapter.
5. BATT/DC switch: External power source switch, this
switch MUST be moved to the BATT location
for the unit to operate on battery power.
Conversely, the switch MUST be moved to the
9
(bottom)
DC location when the unit is to be operated
via external 12 VDC power (Rolls PS27).
6. Audio Input (Labeled AF IN): 1/8" (3.5mm)
jack connect to a line level monitor source.
7. External 12 VDC input. Rolls model PS27.
8. Telescope Antenna: Extend fully for best
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(back)
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transmission/reception.
9. Battery Compartment: Location for 9V alkaline battery.
RECEIVER
1. Power Switch: Turns the WPM61r on and off. When moved toward the top of the
WPM61r, the unit is on. IMPORTANT! When the WPM61r is not in use, make sure
this Power Switch is turned OFF. Otherwise, the battery will continue to drain.
2. Power LED Indicator: Blinks when the Power Switch is first turned ON, will stay lit
when the battery drops below 5.5 to 6 volts and the receiver will no longer operate.
3. Audio earphone output (Labeled AF OUT): 1/8" (3.5mm) TRS stereo output jack.
4. Volume Control: Adjusts the output level of the WPM61r to the earphone jack.
5. Battery Compartment: Location for the 9 V alkaline battery. NOTE: The polarity for
installing the battery is shown below. The positive connection is toward the top of the
WPM61r, the larger negative connection is toward the bottom.
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Battery installation
2
WPM6 1R
4
WIRELESS RECEIVER
5 (on back)
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25
CONNECTION
OPERATION
First, place the WPM61t transmitter in a flat location, preferably in a "line of
sight" location where the transmitter and the receiver are not blocked by any
obstacles.
If the WPM61t is to be powered by a battery, make sure a fresh 9V alkaline
battery is properly installed (see page 2). If the unit is to be powered by an
external power supply (the Rolls PS27), connect the power supply to the DC12V jack on the side of the WPM61t and an AC outlet.
Begin with the WPM61t Volume control set at minimum.
Adapter cables may be needed to properly connect your monitor source and
the WPM61t. For example, if you are connecting the WPM61t to a typical
Monitor Send of a mixer which is 1/4" unbalanced (Tip-Sleeve), you will need
a cable with a 1/8" (3.5mm) plug on one end, and a 1/4" plug on the other.
The Input jack on the WPM61t will accept 1/8" Tip-Ring-Sleeve stereo signals,
and 1/8" Tip-Sleeve mono signals. However, stereo signals are mixed to mono
inside the WPM61t.
Connect your stereo earphones to the WPM61r Headphone Output jack
(Labeled AF OUT), begin with the Volume Control set at minimum.
Extend the WPM61 antenna fully and position it 90 degrees from the top of
the transmitter.
Press the ON/OFF switch on the WPM61t transmitter and make sure the unit
powers up, then power up the WPM61r receiver. Place the earphones in your
ears. Send a signal to the transmitter and carefully bring up the Volume
controls on the transmitter and receiver until a comfortable listening level is
achieved.
A note for musicians, during your "sound check" often the stage volume is
much lower than it will be during performance. You may wish to set your
earphone levels a little higher to compensate for this difference.
Test the range of the WPM61 by walking around the stage or area where the
receiver will be used. As you walk around the area, listen closely for "drop
outs" or areas where the signal may be lost or fuzzy. You may compensate for
these areas by moving the transmitter in different directions 8 - 10 inches. As
mentioned earlier, a "line of sight" arrangement of transmitter and receiver will
achieve the best results.
IMPORTANT
In ear monitor systems operate best when the stage volumes are low. The
high sound pressure levels produced by floor monitors can bleed through your
earpieces and may effect the usefulness of the WPM61 system.
CHANNEL SELECTION
Each WPM61 system ships from the factory set at one of four pre-selected
frequencies of operation. Multiple receivers may be operated with a single
transmitter if the same signal is to be heard by each receiver. These channels
may not be changed.
If a band wishes to use the WPM61 system, each person must use a different
WPM61 channel system and a maximum of four systems may be used for
different audio mixes.
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