MA IWA-250 in-Wall Amplifier

The IWA-250 switch mode amplifier is a slim, powerful dedicated design in a heavy-duty 1U rack mount case.


Delivering up to 250 watts into 4 ohms, a single IWA-250 will power single or dual IWS-10‘s to provide higher power levels for larger rooms or to meet customer demands.


  • Rigid, high quality steel case
  • Switch mode power supply
  • Class D power amplifier delivering up to 250 watts into 4 ohms (dual IWS-10 drivers)
  • High efficiency design resulting in cool running – low thermal output
  • DSP controlled with advanced limiters
  • <0.5watt standby power consumption (ErP certified)
  • DC short circuit protection, over-current and thermal protection

System Format

  • Active sub-woofer amplifier

Lower Frequency Limit

  • 25 Hz

Drive Unit Complement

  • 4 – 8 ohms

Mains Input Voltage

  • AC 110 – 120 V ~ 50/60Hz AC 220 – 240 V
  • ~ 50/60Hz (Factory Region Preset)

Dimensions (H x W x D)

  • 43.7 x 432 x 263 mm (13/4 x 17 x 103/8)


  • LFE in (Stereo RCA and Balanced), 12v Trigger in (3.5 mm mono mini-jack),
  • left and right speaker output