Rolls PM50SE - User Manual

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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

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Summary

Introduction

Product Description

Details the function of each input, output, and control for the PM50s amplifier.

Safety Warnings

Hearing Damage Prevention

Warning about permanent hearing damage from excessive volumes and guidelines for safe listening levels.

Summary

Introduction

Product Description

Details the function of each input, output, and control for the PM50s amplifier.

Safety Warnings

Hearing Damage Prevention

Warning about permanent hearing damage from excessive volumes and guidelines for safe listening levels.

The Rolls PM50s Personal Monitor Amplifier is a compact and versatile device designed for musicians, vocalists, and audio technicians to monitor their own signal alongside a main mix. It's often referred to as a "more me" box because it allows users to blend their microphone signal with a monitor feed and listen to the combined audio through headphones.

Function Description:

The PM50s serves as a personal monitoring solution, enabling users to hear themselves clearly within a larger mix. It features a microphone input (XLR) with a pass-through, a monitor input (1/4" TRS), and headphone outputs (1/4" and 1/8"). The device allows for independent control over the microphone and monitor levels, giving the user precise control over their personal mix.

Key Features:

Microphone Input and Pass-Through: The PM50s includes an XLR microphone input for connecting dynamic or condenser microphones. A parallel XLR pass-through (MIC THRU) allows the microphone signal to be sent to a mixer or other input device simultaneously, without affecting the signal going to the PM50s' headphone output.
Ground Lift: A header jumper for the XLR ground (pin 1) to chassis ground is included, which can be connected or disconnected to eliminate ground loops, a common source of hum or buzzing in audio systems. The unit is factory-configured with pin 1 connected to ground.
Monitor Input: A 1/4" TRS stereo jack serves as the monitor input, allowing connection to line-level sources such as a mixer's monitor/auxiliary output, a cassette player, or a CD player.
Stereo/Mono Operation: Another header jumper allows configuration of the monitor input for either TRS stereo or TS mono operation. The PM50s is factory-configured for stereo mode.
Headphone Outputs: The device provides both a 1/4" stereo jack and a 1/8" (3.5mm) stereo jack for connecting various types of headphones or earphones.
Level Controls: Independent "MIC LEVEL" and "MONITOR LEVEL" controls allow users to adjust the volume of the microphone input and the monitor input, respectively, to achieve their desired personal mix.
Power Input: The unit accepts 9-18 VAC/DC power via an external AC power adapter.

Important Technical 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)

Usage Features:

The PM50s is highly popular among various users:

Performers: Musicians and vocalists use it to monitor their own signal (e.g., vocals) alongside the main mix, ensuring they can hear themselves clearly.
Drummers: Often used by drummers to mix a click track with a monitor signal for precise timing.
Choir Singers: Church choir singers find it useful to monitor their voices over the accompanying musicians.
Sound Technicians: The PM50s can serve as a quick line tester for troubleshooting audio systems due to its ability to take a line input and provide a headphone output.
High Output Level: The device is designed to provide "lots of output level," ensuring it's "loud" enough for most monitoring needs.

Maintenance Features:

Limited Warranty: The product comes with a one-year limited warranty from the date of purchase, covering defects in materials and workmanship under normal installation, use, and service.
Warranty Conditions: The warranty is valid if the product is returned to Rolls Corporation (transportation charges prepaid) with a copy of the purchase receipt. Without a receipt, the warranty period is one year from the date of manufacture.
Warranty Exclusions: The warranty is invalidated if the product is damaged due to defacement, misuse, abuse, neglect, accident, destruction, alteration of the serial number, improper electrical voltages or currents, unauthorized repair/alteration, or any use violating the provided instructions.
Hearing Safety: The manual includes a crucial warning about using the system at excessive volumes, which can cause permanent hearing damage. It advises users to use the lowest possible volume, avoid prolonged listening at excessive sound pressure levels, and provides OSHA guidelines for maximum time exposure to sound pressure levels. Users are encouraged to turn up the volume only to a comfortable level, lower the volume if ringing in the ears occurs, and have their ears checked by an audiologist regularly.

The Rolls PM50s is a robust and user-friendly device that addresses a common need for personalized audio monitoring in various live and studio environments.