Rolls RA170 User manual

RA170
Rolls
Brand
Rolls
Model
RA170
Type
User manual

This manual is also suitable for

RA170
70 VOLT / 70 WATT
POWER
AMPLIFIER
VOLUME
PWR
CLIP
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
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.
1
11-May-1999
Document Number:
Date: Sheet of
Ba
V+
V-
RED
BLK
V+
V-
RED
BLK
1
3
4
7
8
7
4
3
1
V+
V-
CHANNEL 1
CHANNEL 2
8
CLIP
CLIP
J2
PHO NE 1/4
J1A
RCA PC
R4
1K
C6
47U
C3
1U R A235 .1U F R A 170
R1
10K
J1B
RCA PC
J3
PHO NE 1/4
C7
1U
R8
1K
R9
1K
C10
47U
R7
10K
4
1
3
2
SW 1
SW SPST
C12
503
C13
503
C4
220P F
C8
220P F
R3
47K
R10
47K
T1
2-00-4880
D1
LDRR
P1
P 100K
P2
P 100K
D2
LDRR
R6
1K
R5
10K
D3
LDRR
R12
1K
R11
10K
R13
22K
L1
0.7uH
L2
0.7uH
1
A
HDR2
1
A
HDR2
1
A
HDR2
1
A
HDR2
1 3
2
AC
AC PLUG
C2
4700U F
C1
4700U F
C5
27P F
C9
27P F
C11
503
R2
1K
BR A 235.S C H
R A 235 O N LY
R A 170 O N LY
R A 235 O N LY
R
47K
1
3
4
7
8
U1
1
3
4
7
8
U2
C
470U
C
470U
C
470U
C
470U
IN SERIES W /OUTPUTS RA170 O NLY
LM 3875
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
1
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
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Rolls RA170 User manual

RA170
Rolls
Brand
Rolls
Model
RA170
Type
User manual
This manual is also suitable for
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