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Monitor Audio

Monitor Audio IWA-250 In-Wall Amplifier

Monitor Audio IWA-250 In-Wall Amplifier

Regular price £425.00
Regular price Sale price £425.00
Sale Sold out
  • Free Delivery
  • Demo Available
  • Trade-in Available
  • 5 year Warranty
  • Pay in 3
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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

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

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Monitor Audio IWA-250 In-Wall Amplifier
Monitor Audio IWA-250 In-Wall Amplifier

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Monitor Audio IWA-250 In-Wall Amplifier
Monitor Audio IWA-250 In-Wall Amplifier




Delivery & Returns

Delivery & Returns

We offer FREE delivery to the mainland UK (excluding Channel Islands, Isle of Man, Isle of White, Isles of Scilly, and some of the remote Scottish Isles).

For other areas please contact us for a quote. Select items can be delivered internationally by prior agreement. Again please contact us for a quote. We will always do our best to help.

Our aim is to dispatch goods within 2 working days of an order being placed. Please allow 5 working days from the time of your order to receipt of item. If an order is expected to take longer than this our order fulfillment department will contact you to inform you of this.

Where multiple items are ordered, we will dispatch them all in one package. If you have ordered any special or customized items, or items otherwise not immediately available, we will dispatch the order when all items are available. If you have any concerns regarding this, please contact us and we will do are very best to help you.