Expand Your Audio System with Reliable Slave Amplifiers

Enhance your commercial or public address audio installations with our range of Slave Amplifiers at The Electronics Shop. Designed to provide additional power and flexibility, these amplifiers are ideal for expanding existing systems or powering multiple speaker zones.

Key Features:

  • Versatile Connectivity: Each amplifier supports both 100V line and 8 Ohm operation, offering compatibility with various speaker configurations.

  • Flexible Inputs and Outputs: Balanced inputs via screw terminals and dual RCA sockets allow seamless integration with mixers and other audio sources.

  • Scalable Solutions: With power ratings ranging from 60W to 480W, our selection caters to installations of varying sizes and requirements.

  • Safety and Control: Features like channel gain control, LED signal indicators, and 24V fire alarm mute contacts ensure reliable and safe operation.

  • Rack-Mountable Design: Supplied with hardware for mounting two units in a standard rack, facilitating organized and efficient setups.

Whether you're looking to extend your current audio system or require dedicated amplification for specific zones, our slave amplifiers provide the performance and reliability you need.

Adastra US60 Slave Amplifier – Compact 60W Power for Zoned Audio Systems

US60 Compact 60 Watt Slave Amplifier.

100V line or 8 Ohms operation.
Balanced Input (Screw Terminals) and 2 x L+R RCA Sockets.
100V input for connection in parallel with existing 100V speakers.
Channel Gain Control.
LED Signal Indication.
24V fire alarm mute contacts.
Supplied with hardware for rack-mounting 2 units
2 x L+R RCA Slave Output.

Adastra US90 Slave Amplifier

US90 Compact 60 Watt Slave Amplifier.

100V line or 8 Ohms operation.
Balanced Input (Screw Terminals) and 2 x L+R RCA Sockets.
100V input for connection in parallel with existing 100V speakers.
Channel Gain Control.
LED Signal Indication.
24V fire alarm mute contacts.
Supplied with hardware for rack-mounting 2 units
2 x L+R RCA Slave Output.

Adastra RS121 Slave Amplifier

RS121 120 Watt Slave Amplifier.

100V line or 8 Ohms operation.
Balanced Input (Screw Terminals) and 2 x L+R RCA Sockets.
100V input for connection in parallel with existing 100V speakers.
Channel Gain Control.
LED Signal Indication.
24V fire alarm mute contacts.
Supplied with hardware for rack-mounting 2 units
2 x L+R RCA Slave Output.

Adastra RS141 Slave Amplifier

RS141 240 Watt Slave Amplifier.

100V line or 8 Ohms operation.
Balanced Input (Screw Terminals) and 2 x L+R RCA Sockets.
100V input for connection in parallel with existing 100V speakers.
Channel Gain Control.
LED Signal Indication.
24V fire alarm mute contacts.
Supplied with hardware for rack-mounting 2 units
2 x L+R RCA Slave Output.

Adastra RS360 Slave Amplifier

RS360 360 Watt Slave Amplifier.

100V line or 8 Ohms operation.
Balanced Input (Screw Terminals) and 2 x L+R RCA Sockets.
100V input for connection in parallel with existing 100V speakers.
Channel Gain Control.
LED Signal Indication.
24V fire alarm mute contacts.
Supplied with hardware for rack-mounting 2 units
2 x L+R RCA Slave Output.

Adastra RS480 Slave Amplifier

RS480 480 Watt Slave Amplifier.

100V line or 8 Ohms operation.
Balanced Input (Screw Terminals) and 2 x L+R RCA Sockets.
100V input for connection in parallel with existing 100V speakers.
Channel Gain Control.
LED Signal Indication.
24V fire alarm mute contacts.
Supplied with hardware for rack-mounting 2 units
2 x L+R RCA Slave Output.