# Monitor Audio IA750-4 Four Channel 750W Installation Amplifier

The Monitor Audio IA750-4 is a high-powered, professional-grade amplifier engineered for demanding residential and commercial audio installations. Designed to deliver outstanding performance and flexible system integration, this four-channel Class-D amplifier produces 750W per channel at 4 ohms, or 1,500W bridged, ensuring ample headroom for even the most ambitious multi-room or high-fidelity setups. Ideal for custom installers and home cinema enthusiasts alike, it combines immense power with smart DSP features and robust connectivity options.

Whether you're powering in-ceiling speakers, driving subwoofers, or configuring a Dolby Atmos home theatre, the IA750-4 ensures efficient, distortion-free audio playback. Housed in a compact 2U rack-mountable chassis and equipped with IP and RS232 control, it offers seamless integration with smart home systems, making it a future-ready solution for professional-grade audio distribution.

**FEATURES**

-   **Powerful Multi-Channel Output**: Delivers 750W per channel into 4 ohms (or 1,500W bridged), providing exceptional power for high-demand audio zones and subwoofer installations.
-   **Rack-Mountable Design**: Supplied with 2U rack ears, making it easy to integrate into standard AV racks and professional installations.
-   **Built-In DSP**: Advanced digital signal processing with presets allows fine-tuned optimisation for different speaker types and environments.
-   **Flexible Input Configuration**: Offers analogue and digital (AES3) inputs with channel priority, catering to diverse system requirements and ensuring compatibility with various sources.
-   **Bridging Capability**: Channels can be bridged for increased output, ideal for subwoofers or high-performance speaker applications requiring more power.
-   **Efficient Class-D Amplification**: Operates with lower heat and power consumption, making it a greener choice for long-term operation.
-   **Control Integration**: IP and RS232 ports provide smart home compatibility, allowing full control through automation platforms like Control4 or Crestron.
-   **Thermal & Overload Protection**: Advanced safeguards ensure reliable, uninterrupted performance even under heavy loads or continuous use.
-   **Compact Footprint**: Despite its power, the IA750-4 maintains a compact chassis for easier installation in tight AV setups.
-   **Signal Sensing & Auto Standby**: Automatically powers down when not in use, improving energy efficiency.
-   **Highly Versatile Application**: Perfect for multi-room audio systems, dedicated home theatres, or commercial AV installations requiring both power and finesse.

###### What You Get

-   1 x Amplifier
-   1 x Mains Power Lead
-   1 x Connector Set
-   2 x Rack Mount Brackets
-   4 x Adhesive Feet

###### Specifications

-   **Channels:** 4
-   **Output Power @ 2 Ohms:** 4 x 750W SE
-   **Output Power @ 4 Ohms:** 4 x 750W SE, 2 x 1500W BTL
-   **Output Power @ 8 Ohms:** 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):** Non-inverting
-   **Dimensions:** 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:** <0.5W
-   **Accessories:** Rack mount kit (pre-installed)
-   **Power Ratings:** 1% THD @ 120Vac and 230Vac
-   **Cabinet Finish:** Black Anodised
-   **Warranty:** 5 years

## Details

- **Price:** 3150.0 GBP
- **Vendor:** Monitor Audio
- **Type:** Amplifiers
- **Tags:** BLACK5, dfw_feed_exclude

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3150.00 GBP | In stock |

## Images

- Monitor Audio IA750-4 Four Channel 750W Installation Amplifier - K&B Audio
- Monitor Audio IA750-4 Four Channel 750W Installation Amplifier - K&B Audio
- Monitor Audio IA750-4 Four Channel 750W Installation Amplifier - K&B Audio
- Monitor Audio IA750-4 Four Channel 750W Installation Amplifier - K&B Audio

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> Source: [K&B Audio](www.kbaudio.co.uk/products/monitor-audio-ia750-4-four-channel-750w-installation-amplifier)
> Updated: 2026-04-29