The IWA-250 switch mode amplifier is a slim, powerful dedicated design in a heavy-duty 1U rackmount 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

Monitor Audio IWA-250

  • System Format

    Active sub-woofer amplifier

    Lower Frequency Limit

    25 Hz

    Upper Frequency Limit

    Variable 40 – 120 Hz @ 24 dB/Octave

    Amplifier Output

    250 W @ < 1% THD+N

    Drive Unit Complement

    4 – 8 ohms

    Amplifier Classification

    Class D amplifier with Switch mode power supply (SMPSU)

    Cabinet Support

    For use when using the dedicated back box


    Music/ Movie/ Impact

    Phase Control

    0 & 180 degrees

    Auto Sensing

    Line Level > 3.5mV

    Input Level Requirements

    Standby after approximately 15 minutes if no signal sensed

    Input Impedance

    > 20K 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

    Trigger Input

    5 - 12v via 3.5 mm mono mini-jack socket

    Power Consumption

    Standby: < 0.5 W (ErP approved) Typical Idle: < 10 W Max Rated: 200 W

    Weight (unpacked)

    4 kg (8 lb 12 oz)

    Sold As

    Single Unit