Rolls PM52 Users Manual

VOLUME

HEADPHONE

OUTPUTS

MONO

STEREO

POWER AMP LOOP

HEADPHONE

TAP

PM52

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.

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.

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.

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.

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.

This symbol indicates that there are
important operating and maintenance
instructions in the literature
accompanying this unit.

The obligation of Rolls Corporation under this warranty shall be limited

This warranty shall be invalid if the product is damaged as a result of

This one-year warranty is in lieu of all expressed warranties, obligations

IN NO EVENT SHALL WE BE

PM52

Headphone Tap

•

Converts speaker level signals to

headphone level

• Elliminates heavy wedge
monitors

• Passive - no power required

The PM52 is the ideal device for
anyone wanting to use headphones
rather than a wedge or speaker
monitor. Drummers, instrumental­ists, and sound professionals alike
have all benefited from the PM52.

Rolls Corporation
Salt Lake City, UT
9/95

PM52

HEADPHONE TAP

Owners Manual

INTRODUCTION

J3
PHONE 1/4

R2 150

P1B

5KA

STEREO

1

2

3

SW1A

DPDT

J1
PHONE 1/4

J2
PHONE 1/4

MONO

R1 150

J4
PHONE 1/4

P1A

5KA

Date: February 25, 1994 Sheet 1 of 1

Size Document Number REV

A PM52

Title

PM52 HEADPHONE TAP

ROLLS CORPORATION

Thank you for your purchase of the PM52 Headphone Tap. The PM52 is for
connecting headphones to a speaker line. The 1/4" Mono/stereo loop jacks
are for cascading more boxes in series. There are two headphone jacks
and volume control. The Headphone Tap uses the speaker line signal for
power, therefore requires no batteries or external power.

SPECIFICATIONS

Input Impedance: 150 Ω
Size: 2.25" x 2.5" x 1.25"

(5.7 x 6.3 x 3.2 cm)

Weight: 1lb (.45 Kg)

DESCRIPTION

MONO/STEREO Switch: Selects between a Mono or Stereo input mode.
POWER AMP LOOP: Two paralleled 1/4" stereo TRS jacks, one for
receiving the input signal and the other for connecting to a speaker or
other input device.
VOLUME: Controls the level of the signal to the headphones.
HEADPHONES: Two 1/4" stereo TRS jacks for connection to stereo
headphones.

MONO

STEREO

POWER AMP LOOP

HEADPHONE

TAP

PM52

HEADPHONE

VOLUME

OUTPUTS

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

SCHEMATIC

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.

4. Wipe the earphones with an antiseptic before and after use to avoid infections.
Stop using the earphones if they are causing great discomfort or infection.