ROLLS RA170 70V Power amplifier

The RA170 Power Amplifier was designed especially for the installation contractor. The RA170 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 is protected from momentary shorting and excessive load by a specially designed protective circuit.

• 70 Watts of clean amplification into 70 V system
• Spring-loaded output terminals
• Front-panel heat sinking
• Recommended Load: 70 Volt line (70 Watts maximum)
• Frequency Response: 70Hz to 20 kHz
• Equiv. Input Noise: 100 microVolt typical, A weighted 600 Ohm input
• S/N Ratio: 114 dB @ 70 Watts
• Gain: 40 dB
• Input Impedance: 47 k Ohms
• Size (W x H x D): 19” x 1.75” x 5” (48 x 4.5 x 12.7cm)
• Weight: (2.5 kg)