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