Sound Barrier DA8.4 — 4-Channel Class D Power Amplifier
DA8.4 Overview
The Sound Barrier DA8.4 is a high-output 4-channel Class-D amplifier built for professional audio systems that demand strong, reliable power across multiple channels. Delivering up to 3400W per channel at 4Ω, it is engineered to drive full-range loudspeakers and subwoofer systems in applications including DJ setups, live sound reinforcement, nightclubs, and small to mid-size venues. The switching power supply with active Power Factor Correction (PFC) ensures stable performance across a wide voltage range, while the advanced Class-D topology provides high efficiency with reduced heat generation. The DA8.4 is well-suited for system integrators, touring engineers, and venue operators seeking a high-density amplification solution.
The 4-channel architecture consolidates multiple speaker or subwoofer drivers onto a single amplifier, reducing rack space and simplifying system wiring. Support for stereo, bridge, and mono operation modes, along with selectable gain settings, allows the DA8.4 to integrate cleanly into a wide range of professional audio and DSP-driven signal chains.
Key Features
- High-Output Class-D Design — Delivers up to 3400W per channel at 4Ω, providing the headroom required for demanding live sound and subwoofer applications
- 4-Channel Architecture — Powers multiple loudspeakers or subwoofer drivers from a single unit, optimizing rack density and reducing system complexity
- Multiple Operation Modes — Supports stereo, bridge, and mono configurations for flexible system design across a variety of professional audio setups
- Selectable Gain Settings — Allows level matching and integration with external DSP processors and system controllers
- Active Power Factor Correction (PFC) — Switching power supply with PFC maintains stable output across a wide input voltage range
- Front-to-Rear Cooling System — Temperature-controlled fans provide consistent thermal management during extended high-output operation
- Comprehensive Protection Circuits — Includes over-temperature, short circuit, overload, DC offset, and undervoltage protection to safeguard amplifier and connected loads
- Full-Range and Subwoofer Compatibility — Engineered to drive both full-range loudspeakers and dedicated subwoofer systems in a single chassis
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