Rolls RA63b 8 Channel Mono/4 Channel Stereo Distribution Amplifier

The Rolls RA63b is an outstanding distribution amplifier crafted for the contractor and install market. It can operate as an eight-channel mono or four-channel stereo amplifier. Its outputs are engineered to drive high-level balanced lines in a sound distribution system. With screw terminal inputs and outputs on the rear panel, each output can power multiple lines. Key Features: - Offers mono or stereo operation, allowing mono input to eight outputs or stereo inputs to four stereo outputs. - Comes with a +20 dB gain switch. - Replaces the old RA63s, featuring an easily accessible stereo-mono switch. Technical Specifications: - Input Impedance: 100 K Ohms balanced - Max Input Level: +22 dBV - I/O Connectors: Screw terminal (+, -, and ground) - Output Impedance: 50 Ohms balanced - Max Output Level: +24 dB - Max Gain: 20 dB - S/N Ratio: >90 dB - Frequency Response: 10 Hz - 40 kHz, +/- 1 dB - THD: <.008% - Power: 120 VAC 50 - 60 Hz, 15VA - Size: 19” x 1.75” x 6.5” (48 x 4.5 x 17 cm) - Weight: 7 lbs. (3 kg)

Using the Rolls RA63b is easy. First, connect your audio source to the input screw terminals on the rear panel. You can choose between mono or stereo operation according to your needs. If you want more volume, use the +20 dB gain switch. For the output, connect your speakers or other audio devices to the output screw terminals. Each output can power multiple lines, so you have flexibility in setting up your sound system. When using the RA63b, make sure to use a 120 VAC power supply with a frequency of 50 - 60 Hz. Don't overload the amplifier. If you notice any strange noises or the amplifier gets too hot, turn it off immediately and check the connections. To maintain the RA63b, keep it in a dry and clean place. Avoid exposing it to direct sunlight or moisture. You can use a soft cloth to clean the exterior. If you have any technical issues, it's best to contact the manufacturer or a professional technician.