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Rolls RA170 Mono Power Amplifier - 70V/70W Audio Distribution
The RA170 mono power amplifier was designed especially for the installation contractor, and is housed in a single rack-space unit with a choice of either an RCA coaxial or 1/4" TS phono unbalanced input. The 70 volt speaker outputs are provided via spring-loaded terminals and no transformer is required for speaker connection.
The front panel includes a power indicator LED, a volume control, and two clip LED's which indicate circuitry overload. The output circuitry of the RA170 is protected from momentary shorting and excessive load by a specially designed protective circuit.
- Mono 70 volt amplifier
- Drives 70 volt speakers directly
- Choice of RCA coaxial or 1/4" TS phono input
- Spring loaded speaker output
- Clip indication
- Fault protection output
| Power Rating | Mono @ 70V: 70 watts maximum |
| Damping Factor | Not applicable |
| Input Sensitivity | Not specified by manufacturer |
| Input Impedance | 147k ohm |
| Gain | 40dB |
| Frequency Response | 70Hz to 20kHz |
| Signal-to-Noise Ratio | Better than 114dB @ 70 watts |
| Total Harmonic Distortion (THD) | Not specified by manufacturer |
| Input Connections | 1 x RCA coaxial, 1 x 1/4" TS phono |
| Output Connectors | 1 x Pair spring loaded speaker connectors |
| Controls Front Panel | Power switch, 1 x Rotary volume |
| Controls (Rear) | None |
| Indicators | 2 x Clip, 1 x Power LED's |
| Camera Resolution | Convection (uses front panel for heat distribution) |
| Power Consumption | Not specified by manufacturer |
| Dimensions | 19" x 5" x 1 3/4" |
| Weight | 5.5 lbs |
| Specialties | Requires no transformer coupling to drive 70 volt speakers directly |
REVIEWS
Reviewed by 2 customers
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Displaying reviews 1-2
Pros
- Easy To Use
Cons
- Limited Functions
Best Uses
Comments about Rolls RA170 Amplifier:
Inexpensive, easy replacement for old, blown amp in existing 70v system.
Pros
- Clear Sound
- Easy To Use
Cons
Best Uses
- Sound masking systems
Comments about Rolls RA170 Amplifier:
I used this amplifier for a commercial sound masking system installation and it worked GREAT!
Displaying reviews 1-2
Cables
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- Original: $9.95
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- Price: $8.96
Speaker Cables
- Price: $31.50
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Racks
- Price: $84.99
Cases & Protection
- Price: $129.99
What's in the Box
- External Power Adapter
- One Year Warranty
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