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Monitor Audio IWA-250 Amplifier

Model #: IWA250
Monitor Audio
At a Glance
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.
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  • 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 FormatActive sub-woofer amplifier
Lower Frequency Limit25 Hz
Upper Frequency LimitVariable 40 – 120 Hz @ 24 dB/Octave
Amplifier Output250 W @ < 1% THD+N
Drive Unit Complement4 - 8 ohms
Amplifier ClassificationClass D amplifier with Switch mode power supply (SMPSU)
Cabinet SupportFor use when using the dedicated back box
EQMusic/ Movie/ Impact
Phase Control0 & 180 degrees
Auto SensingLine Level > 3.5mV
Input Level RequirementsStandby after approximately 15 minutes if no signal sensed
Input Impedance> 20K Ohms
Mains Input VoltageAC 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 (1.75 x 17 x 10.38)
ConnectionLFE in (Stereo RCA and Balanced), 12v; Trigger in (3.5 mm mono mini-jack), left and right speaker output
Trigger Input5 - 12v via 3.5 mm mono mini-jack socket
Power ConsumptionStandby: < 0.5 W (ErP approved); Typical Idle: < 10 W Max Rated: 200 W
Weight (unpacked)4 kg (8 lb 12 oz)

Misc. Specs

Depth (in.)10.36
Height (in.)1.72
Impedance4 Ohms
Width (in.)17.01
Manufacturer Warranty5 Year
Analog Audio(RCA) Input1
Watts per Channel (Watts)250
Headset JackYes
Product Weight (lbs.)10
WarningProposition 65 Warning for California Residents