Sound Barrier DA7.2 — 2-Channel Class D Power Amplifier
DA7.2 Overview
The Sound Barrier DA7.2 is a high-output 2-channel Class-D amplifier built for professional audio systems that demand focused, reliable power delivery. Rated at 3500W per channel at 4Ω, it is engineered to drive subwoofers and full-range loudspeakers in DJ systems, live sound reinforcement, and medium-scale venue installations. The advanced Class-D design delivers high efficiency with reduced heat generation and lower power consumption compared to traditional amplifier topologies. A switching power supply with active Power Factor Correction (PFC) ensures stable operation across a wide voltage range, making it well-suited for touring and fixed-installation environments alike.
The DA7.2 supports stereo, bridge, and mono operation modes along with selectable gain settings, allowing straightforward integration into DSP-controlled signal chains and a variety of professional system configurations.
Key Features
- 3500W Per Channel at 4Ω — High output per channel designed for applications where fewer speakers require greater drive capability, including subwoofer arrays and high-output full-range systems
- Class-D Amplifier Topology — High-efficiency design reduces heat generation and power consumption without sacrificing output performance
- Active Power Factor Correction (PFC) — Switching power supply with PFC maintains stable performance across a wide input voltage range
- Multiple Operation Modes — Supports stereo, bridge, and mono configurations for flexible system integration
- Selectable Gain Settings — Allows level matching within DSP-controlled and mixed-format signal environments
- Front-to-Rear Cooling System — Temperature-controlled fans manage thermal load during sustained high-output operation
- Comprehensive Protection Circuits — Includes over-temperature, short circuit, overload, DC offset, and undervoltage protection to safeguard connected loudspeakers and the amplifier itself
- Versatile Application Range — Suited for subwoofer amplification, DJ systems, live sound reinforcement, and medium-scale venue installations
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