Rolls PB23 User manual

Brand: Rolls

Model: PB23

Type: User manual

Rolls PB23 is a phantom power adapter designed to provide power to condenser microphones. It offers switchable voltage levels of 12V or 48V to accommodate various microphone requirements. The unit features XLR connectors for input and output, allowing easy integration into your audio setup. It also has a compact design, making it portable and convenient for use in different locations. With its high-frequency switching power supply, the PB23 ensures noise elimination, delivering clean and reliable phantom power to your microphone.

Owners Manual

PB23

PHANTOM POWER

ADAPTER

PHANTOM POWER

ADAPTER

PB23

MIC

OUTPUT

MIC

INPUT

12VDC PWR

LOOP

PHANTOM VOLTAGE

12 VOLT  48 VOLT

LIMITED WARRANTY

This product is warranted to the original consumer purchaser to

be free from defects in materials and workmanship under normal installa-

tion, 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, OBLIGA-

TIONS, OR LIABILITIES, INCLUDING BUT NOT LIMITED TO THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS

FOR A PARTICULAR PURPOSE, SHALL BE LIMITED IN DURA-

TION 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 SPE-

CIAL, 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.

Rolls Corporation

Salt Lake City, UT

9/95

PB23 Phantom

Power Adapter

• Powers a condenser microphone requiring

phantom power

• 12 or 48 Volts available

• AC adapter included

• High frequency switching power supply to

elliminate noise

The PB23 is for powering a phantom powered

microphone with either 12 or 48 VDC. The unit

uses a 100kHz switching power supply to

elliminate noise generated by common power

supplies. The PB23 has pull-down resistors so it

will work with any mixer. 2 DC jacks have been

included so several units may be operated with

one power supply.

INTRODUCTION

Thank you for purchasing the PB23 Phantom Power Adapter, the unit is

designed to provide years of lasting value and usefulness. The unit

powers a condenser microphone that is designed for phantom powering.

Phantom power microphones provide much greater dynamic range, lower

noise and better sound quality. Most microphones will operate at full

performance with 12 volts DC, however some mics require 48 volts which

was the old tube mic standard. The PB23 features selectable voltage

levels.

OPERATION

Switch the PHANTOM VOLTAGE to the appropriate setting. Connect a

condenser microphone to the input connector(s) and connect the

output(s) to a mixer or other audio input device. Apply power to the unit by

connecting the enclosed adapter to an AC outlet and to the 12VDC

Power Loop. The LED on the front of the unit will light. The two DC input

jacks are provided in order to use one power supply to power more than

one unit. The units provide no audio gain as they are not microphone

preamps.

PHANTOM POWER

ADAPTER

PB23

MIC

OUTPUT

MIC

INPUT

12VDC PWR

LOOP

PHANTOM VOLTAGE

12 VOLT  48 VOLT

AC ADAPTER

MIXER

PHANTOM POWER

ADAPTER

PB23

MIC

OUTPUT

MIC

INPUT

12VDC PWR

LOOP

PHANTOM VOLTAGE

12 VOLT  48 VOLT

XLR M PC

C4 47U

47U

XLR F PC

6.8K

C10

503

SW1A

DPDT

C7 .047

1 2

U1A 4069

22K

13 12

U1F

4069

10K

C10 120PF

11 10

U1E

4069

3 4

U1B 4069

5 6

U1C 4069

9 8

U1D

4069

C9 .047

C8 .047

48V 12V

1N4148

C11

1N4148

JAPDC

1N4001

7812

1000UF

1 UF

Date: September 4, 1995 Sheet of

Size Document Number REV

A PB23.SCH

Title

PB23 PHANTOM BOX

ROLLS CORPORATION

SPECIFICATIONS

Phantom Voltage: 12V or 48V selectable

Jacks: Male and Female XLR jacks,

2: 5mm DC input jacks

Control: 12/48 volt selector switch

Power Input 14 - 18 VCD (adapter included)

Size: 3" x 2.5" x 1.25"

Weight: 1 lb (.45 Kg)

Rolls PB23 User manual

Rolls PB23 User manual

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