Rolls RA170 User manual

Brand: Rolls

Model: RA170

Type: User manual

This manual is also suitable for

RA 170

RA170

70 VOLT / 70 WATT

POWER

AMPLIFIER

VOLUME

PWR

CLIP

OWNERS MANUAL

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 Corporation, TRANSPORTATION CHARGES PRE-

PAID. 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 deface-

ment, 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 MER-

CHANTABILITY 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.

ROLLS CORPORATION

SALT LAKE CITY, UTAH

6/99

INTRODUCTION

Thank you for your purchase of the ROLLS RA170 70 Volt / 70 Watt Power

Amplifier. The RA170 is a virtually indestructible single rack space amplifier

intended for the contractor and install market. It requires no transformer coupling

to drive 70 volt speakers directly. The mono unit features both RCA and 1/4”

inputs. The 70 volt speaker outputs are provided via spring-loaded terminals.

DESCRIPTION

FRONT PANEL

VOLUME

PWR

CLIP

VOLUME: This control adjusts the output level of the RA170.

PWR: LED indicating the unit’s power status.

CLIP: These LEDs light in the event of RA170 circuit overload.

REAR PANEL

120 VAC

50/60 Hz 15 VA

MADE IN U.S.A.

70V OUTPUT

CAUTION

RISQUE DE CHOC - NE PAS ENLEVER

RISK OF ELECTRIC SHOCK

DO NOT OPEN

MODEL RA170

SERIAL NUMBER

170-

WARNING:

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT NOT REMOVE BACK.

NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

SPARE

MAIN INPUTS

120 VAC 50/60 HZ 15 VA: Power Cord. Connect to a properly grounded AC

source.

70V Output: Spring loaded terminals to be connected to 70 Volt speaker connec-

tions. No special transformers are required.

SPARE: 1/4” and RCA jacks. These are not connected.

MAIN INPUTS: 1/4” and RCA jacks to be connected to line level signal to be

amplified. Note: Do not use both jacks simultaneously as both jacks are tied

directly together.

BURN WARNING!

THE FRONT PANEL OF THE RA170 IS THE HEAT DISTRIBUTION FOR THE

OUTPUT STAGE. IF THE UNIT IS OPERATED AT HIGH VOLUMES, IT MAY

GET HOT.

11-May-1999

Document Number:

Date: Sheet of

V+

V-

RED

BLK

V+

V-

RED

BLK

V+

V-

CHANNEL 1

CHANNEL 2

CLIP

PHO NE 1/4

J1A

RCA PC

47U

1U R A235 .1U F R A 170

10K

J1B

RCA PC

PHO NE 1/4

C10

47U

10K

SW 1

SW SPST

C12

503

C13

503

220P F

47K

R10

47K

2-00-4880

LDRR

P 100K

LDRR

10K

LDRR

R12

R11

10K

R13

22K

0.7uH

HDR2

1 3

AC PLUG

4700U F

27P F

C11

503

BR A 235.S C H

R A 235 O N LY

R A 170 O N LY

R A 235 O N LY

47K

470U

IN SERIES W /OUTPUTS RA170 O NLY

LM 3875

C P8010

BR1

ROLLS CORPORATION

5143 South M ain Street

Salt Lake C ity, U T 84107

Title: R A170 / R A235 P O W ER AM P LIFIE R S

Size:

Rev

INSTALLATION

Mount the RA170 in a safe and sturdy rack. Connect the output of the signal

source to the selected input of the RA170. Connect the 70V Output terminals to

the 70 volt speakers.

Plug the AC cord into a properly grounded AC outlet.

Send signal to the RA170 and adjust the VOLUME control for a comfortable

listening level.

SPECIFICATIONS

Recommended Load: 70 Volt line (70 Watts maximum)

Frequency Response: 70Hz to 20 kHz

Equiv. Input Noise: 100 µV typical, A weighted

600 Ω input

S/N Ratio: 114 dB @ 70 Watts

Gain: 40 dB

Input Impedance: 47 k Ω

Size (W x H x D): 19" x 1.75" x 5" (48 x 4.5 x 12.7)

Weight: 5.5 lbs (2.5 kg)

SCHEMATIC

Rolls RA170 User manual

Brand: Rolls

Model: RA170

Type: User manual

This manual is also suitable for

RA 170

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Rolls RA170 User manual

This manual is also suitable for

Rolls RA170 User manual

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