AudioControl
AUDIO CONTROL Model CM4-750 4 Channel High Power Dual Mode 70 Volt DSP Amplifier
Best professional amplifier for complex commercial and large-scale audio installations.
The AUDIO CONTROL Model CM4-750 is a powerful 4-channel amplifier designed for demanding audio installations, including extensive outdoor systems and commercial A/V applications. It offers flexible dual-mode operation, supporting both 70/100 Volt and low impedance (2Ω/4Ω) configurations. This amplifier integrates advanced Digital Signal Processing (DSP) with per-zone equalization and signal matrixing for precise sound tailoring. It accommodates various inputs, including balanced, unbalanced, digital, and microphone, and features built-in speaker optimization profiles. Remote setup and diagnostics are available via IP web browser or dedicated apps, ensuring efficient system management.
$3790.00
Owner Satisfaction
4.7
/ 5
Category Rank
418
/ 1683
#418 in Power Amplifiers
Price vs Category Average
-54%
Below average
Who it's for
- Integrators managing both commercial distributed audio and high-end residential systems
- Audio professionals needing precise system tuning and speaker protection
- Rack designers prioritizing high power output in compact spaces
Who should skip it
- DIY installers lacking experience with advanced DSP configuration
- Budget-conscious buyers seeking simple, non-DSP amplification solutions
- Users with limited rack space or poor ventilation environments
Performance breakdown
Power Density
Delivers massive wattage across all channels in a compact 2U chassis.
Installation Versatility
Seamlessly handles both low-impedance and 70/100V distributed audio systems.
DSP Precision
Advanced per-zone equalization allows for surgical acoustic tuning in any space.
Network Management
IP-based diagnostics make remote system monitoring and setup incredibly efficient.
Input Flexibility
Comprehensive connectivity supports balanced, unbalanced, and digital sources simultaneously.
System Protection
Integrated anti-clipping technology safeguards speakers during high-demand performance peaks.
Key Specs
4 Channels x 750 Watts at 70/100 V or 2Ω/4Ω (All Channels Driven)
4 Channels x 500 Watts at 8Ω (All Channels Driven)
1500 Watts of Bridged Power at 70/100 V or 4Ω/8Ω
Inputs
8 Balanced, 8 Unbalanced RCA, 2 Digital Combo Coax/Toslink
Minimum Speaker Load
2Ω
Dimensions
17” W x 15.5” D x 3.5” H (2U)
Weight
18.5 lbs (8.4 kg)
Connectivity
Ethernet TCP/IP, Analog, Microphone, Digital inputs
Features
- 4 channels of high-power amplification
- Dual-mode operation (70/100V or low impedance)
- On-board DSP with per-zone EQ
- Speaker optimization profiles included
- Networked control and monitoring
- Flexible input/output matrixing
- Anti-clipping speaker protection
- Remote IP-based setup and diagnostics
What customers say
Customers overwhelmingly praise the Audio Control CM4-750 for its robust build quality and exceptional reliability, especially when powering complex 70-volt speaker arrays. Installers value the integrated Digital Signal Processing for achieving pristine audio tuning in difficult spaces. The dual mode functionality, allowing seamless switching between low impedance and 70V operation, adds significant versatility. While the unit commands a premium price, users agree the investment is justified by its powerful performance and the peace of mind derived from its durability. The consensus positions the CM4-750 as a versatile and essential tool for serious audio integration projects.
Know before you buy
Yes, the CM4-750 is designed for dual-mode operation. It supports 70/100V commercial installations as well as low-impedance configurations down to 2 ohms, making it versatile enough for both professional and high-end residential setups.
No proprietary software is required. You can manage the DSP, per-zone equalization, and system diagnostics directly through any standard IP web browser, which simplifies setup and remote maintenance.
Yes, the amplifier is bridgeable. It provides up to 1500 watts of bridged power at 70/100V or 4/8 ohm loads, allowing you to drive high-power subwoofers or large speaker arrays effectively.
The CM4-750 includes integrated anti-clipping circuitry. This feature monitors the signal to prevent distortion and protect your speakers from damage caused by overdriving the amplifier.
Yes, the unit is 2U in height and measures 17 inches wide, making it fully compatible with standard 19-inch equipment racks.
The amplifier is highly flexible, featuring 8 balanced inputs, 8 unbalanced RCA inputs, and 2 digital combo inputs (coax/Toslink). It also supports microphone inputs, allowing for a wide range of source integration.
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$3790