IA750-4 delivers an incredible four channels of 750 W each and is the perfect amplifier for the most demanding of large home theatre installations.

In a larger installation where pure power is required, the Monitor Audio IA750-4 is the ideal choice. A 2U full width high-power amplifier, it features full DSP matrix configuration and is simple to install and use. But power is its trump card: four channels of 750 W each deliver the most impressive home theatre sound imaginable. It’s capable of getting the very best out of any system and is the perfect partner for Monitor Audio’s THX Ultra certified Cinergy home theatre system.

Note: Rack installation kit included.

18/03/24 - Download firmware V1.6.2 from this link. This has a number of bug fixes and feature improvements. For a full list of these and instructions on what to do, please download our guide from this link.


Key Features

  • 4 x 750 W
  • Fully customisable DSP amplifier with web configurator
  • Full width 2U rack format
  • High performance Class D amplifiers ensure excellent power and sound delivery
  • Supports 70/100V line level speakers




Output Power @ 2 Ohm​s

4 x 750W SE

Output Power @ 4 Ohm​

4 x 750W SE, 2 x 1500W BTL

Output Power @ 8 Ohm​

2 x 400W SE, 2 x 1500W BTL

Output Power @ 70V ​

2 x 1200W BTL

Output Power @ 100V​

2 x 1500W BTL

Maximum Total Output Power, all channels driven

3000 W​

Power Consumption

700 W​

Thermal Output

2400 BTU

Polarity (Default)



88 x 440 x 329 mm (36/16 x 175/16 x 1215/16”)

Output Voltage​

80Vp / 160Vpp (SE unloaded), 160Vp / 320Vpp (BTL unloaded)

Signal to Noise Ratio

>108dB (A-weighted, 20Hz – 20kHz, 8 Ohm load)

THD+N (typical)​

<0.05% (20 Hz – 20 kHz, 8 Ohm load, 3db below rated power)​

Frequency Response

+0/-0.25dB 20Hz – 20kHz (8 Ohm load, 3dB below rated power

Protection Circuits​

Short circuit -, DC, Undervoltage -, Temperature – and Overload protection​

Power Supply​

Switch mode power supply with Power Factor Correction (PFC) and standby converter

Operating​ Voltage/Frequency

Universal Mains, 100 V – 240 V, 50 Hz – 60 Hz​

Standby Consumption​



Rack mount kit (pre-installed)

Power Ratings​

1% THD @ 120Vac and 230Vac​

Cabinet Finish

Black Anodised

Product Video

Related Products

Leave a product review