RA170 70 Volt-70 Watt Amplifier
The R A170 is a great problem solver for installation applications. It's a mono
70 Volt amplifier requiring no transformer coupling to drive 70 volt speakers
directly. The unit is a single rack-space, mono unit with a choice of an RCA or
1/4 unbalanced input. The 70 volt speaker outputs are provided via spring-
loaded terminals - no transformer is required for speaker connection.
The front panel includes a Power indicator LED, a Volume control, and two
Clip LEDs which indicate circuitry overload. The output circuitry has been pro-
tected from momentary shorting and excessive load by a specially designed pro-
tective circuit.
FEATURES:
Balanced 70 volt line output
Drives 70 volt speakers directly
RCA or 1/4" inputs
Spring-loaded output
Clip indication
Fault protected output
SPECIFICATIONS
Recommended Load:
70 Volt line (70 Watts maximum)
Frequency Response:
70Hz to 20 kHz
Equiv. Input Noise:
100
µ
V 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)
ROLLS Coporation
5143 South Main Street, Salt Lake City, UT, 84107
(801) 263-9053 FAX (801) 263-9068
[email protected] • www.rolls.com
6/99
VOLUME
RA
17
0
PWR
CLIP
CLIP
70 V
ol
t
Po
w
er
A
m
p
lif
ie
r
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 THI
S
EQUI
PMENT TO RAI
N
OR MOI
STURE.
TO REDUCE
THE
RISK OF ELECTRI
C
SHOCK
DO NOT NOT
REMOVE BACK.
NO USER SERVI
CABLE
PARTS I
N
SI
DE. REFER SERVICI
NG TO QUALI
F
IE
D
SERVI
C
E PERSONNEL
SPARE
MAIN INPUTS
