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Adastra RS-Series Slave Amplifiers, 100V Line / 8 ohms - RS120, RS240, RS360 & RS480

by Adastra
Original price £222.00 (inc. VAT) - Original price £222.00 (inc. VAT)
Original price £222.00 (inc. VAT)
£222.00 (inc. VAT)
£222.00 (inc. VAT) - £222.00 (inc. VAT)
Current price £222.00 (inc. VAT)
SKU 953.121
Model (Output): RS240 (240W)

The Adastra RS-Series Slave Amplifiers are perfect for public address and background music systems in medium to large areas. 

These professional slave amps can be used as a standalone PA solution in conjunction with a pre-amp mixer or media player. Alternatively, you can 'daisy-chain' them to other power/slave amplifiers and run a multi-zone, high-powered sound system. 

The Adastra RS Power Amplifiers are compatible with 100V Line and low impedance loudspeakers. A master volume control enables you to have the same level of sound throughout the whole building. 

RS-Series Range

  • RS120 - 120W RMS

  • RS240 - 240W RMS

  • RS360 - 360W RMS

  • RS480 - 480W RMS

Peak and signal LEDs allow you to monitor the output. If the Peak LED is showing then you should reduce the output immediately. 

The Adastra RS-Series amplifiers are supplied with rack-mount ears so they can be installed into a 19" rack cabinet or case (2U). 


Adastra RS-Series Slave Amplifiers Key Features:

  • RCA slave inputs and outputs

  • 8 ohms and 100V line speaker output

  • Peak and signal LEDs

  • 2U 19" rack mountable

  • Supplied with rack-mount ears

View the Adastra range of products HERE

See SPECIFICATION tab for technical specs


Adastra RS-Series Slave Amplifier Specifications


  • Power supply: 110/240Vac, 50/60Hz (IEC)
  • Input: RCA slave in
  • Output : signal: 2 x RCA
  • Outputs : speaker: 100V and 8 ohms
  • Controls: Master volume
  • THD: <1.0%

Adastra RS120 Key Specifications

  • DC power: 24Vdc (screw terminals)
  • Power: output: 120Wrms
  • Dimensions (W x D x H): 433 x 363 x 89mm
  • Weight: 8.88kg

Adastra RS240 Key Specifications

  • DC power: 24Vdc (screw terminals)
  • Power: output: 240Wrms
  • Dimensions (W x D x H): 433 x 363 x 89mm
  • Weight: 10.06kg

Adastra RS360 Key Specifications

  • DC power: N/A
  • Power: output: 360Wrms
  • Dimensions (W x D x H): 433 x 403 x 89mm 
  • Weight: 11.6kg

Adastra RS480 Key Specifications

  • DC power: N/A
  • Power : output: 480Wrms
  • Dimensions: 433 x 345 x 89mm
  • Weight: 13.50 kg

Adastra RS-Series Slave Amplifiers - PDF Download

Download the user manuals HERE

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