Rolls RA170 Specifications

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-

RA 170

70 V olt

P o w e r A m p lifie r

SPARE

70V OUTPUT

CLIP

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 circuitr y has been pro­tected from momentary shorting and excessive load by a specially designed pro­tective circuit.

FEATURES:

 Balanced 70 volt line output

MAIN INPUTS

 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)

RISQUE DE CHOC - NE PAS ENLEVER

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)

VOLUME

CLIP

PWR

SERIAL NUMBER

170-

MODEL RA170

120 VAC

50/60 Hz 15 VA

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

WARNING:

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

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

DO NOT OPEN

CAUTION

RISK OF ELECTRIC SHOCK

MADE IN U.S.A.

ROLLS Coporation

5143 South Main Street, Salt Lake City, UT, 84107

[phone] FAX [phone]

[e-mail] • www.rolls.com

6/99