100v & Low Z
On Offer

Adastra RS Series slave amplifiers


100v line slave amplifiers




Adastra RS Series 100v line slave amplifiers

A rack-mountable, high power 100V line slave amplifiers in a 2U rack-mountable housing. Slave inputs can be connected from Adastra RM series mixer amplifiers and slave outputs onto further RS slaves. Master volume control governs output level to either low impedance or 100V speakers. Designed to power medium to large installations from a mixer output or expand existing systems

  • 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
  • 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%


  • Power : output: 120Wrms
  • Speaker : outputs: 100V / 8 Ohms / COM terminals
  • Mains or 24v DC operation
  • Weight: 8.88kg


  • Power : output: 240Wrms
  • Speaker : outputs: 100V / 8 Ohms / COM terminals
  • Mains or 24v DC operation
  • Weight: 10.06kg


  • Power : output: 360Wrms
  • Speaker : outputs: 100V / 8 Ohms / COM terminals
  • Mains only operation
  • Weight: 11.6kg



Founded in 1949, Adastra has earned a reputation for delivering high quality public address systems. Adastra strives to provide complete and versatile solutions for commercial 100v line PA sound installations, with specialist products provided for zoning, noise pollution control, portable public address and induction loop systems. A comprehensive range of associated products are also available, including speaker brackets, rack cabinets, cables and microphones. These products have been created with the user in mind, offering a flexible and modular approach to installation sound systems. For over 60 years Adastra has serviced the needs of the public address sector as a fully established brand name, celebrated for quality and excellence, and will continue to develop and diversify its range in order to remain at the forefront of the industry.

Additional information

Dimensions32 × 43.3 × 8.9 cm


Output (RMS)

120w, 240w, 360w


New, Graded

User Manuals


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