AMP PWR SHR 4CH 400W 1RU

The AtlasIED CLA404 is a four-channel, 400W Class D amplifier engineered for both commercial distributed audio systems and low-impedance sound reinforcement. Its multi-impedance design accommodates 2-, 4-, and 8-ohm loads as well as 25V, 70V, and 100V systems. With AtlasIED's Power Share technology, accurate power levels are directed to each zone, offering flexibility for installations with diverse loudspeaker requirements.

Ideal Use Cases

The CLA404 is ideal for restaurants, presentation rooms, classrooms, conference rooms, and retail environments. Its four-channel configuration allows for background or foreground music across multiple zones, making it perfect for dynamic audio needs in varied commercial settings. Additionally, its ability to handle both low-impedance and constant-voltage loads makes it versatile for a broad spectrum of audio applications.

For distributed systems, the 25V, 70V, and 100V modes offer seamless integration, while compatibility with 2-, 4-, and 8-ohm loads supports traditional loudspeaker setups.

Why Choose This Model

Combining four amplifier channels with 400W of power, the CLA404 excels in compactness and precision. The hallmark Power Share technology ensures power is distributed efficiently, making it invaluable for installations with varying power demands across zones.

Key features include four inputs aligned with its channel architecture and seven GPI ports via 3.5mm Euro Block connections. Its four removable speaker-output Euro Block terminals with locking connections ensure secure and reliable installations.

Installation and Integration

Occupying 1 RU as a half-rack unit, the CLA404's dimensions are 1.75 inches high by 8.75 inches wide by 13.5 inches deep (44 x 222 x 343mm), with a weight of 7.7 pounds (3.38kg). It features convection cooling at idle and a variable fan activated by audio-signal sensing, ensuring optimal performance across conditions.

The locking, removable speaker terminals facilitate straightforward wiring, maintaining reliable connections post-installation. Shipping dimensions are 4.5 x 17.25 x 11.75 inches (114 x 438 x 298mm), with a shipping weight of 10.9 pounds (4.8kg). A 36-month warranty from the date of purchase underscores its reliability.

Performance Highlights

The Class D CLA404 delivers 400W of output power with total harmonic distortion at 1kHz and 1dB below rated power capped at 0.15%. It boasts a signal-to-noise ratio greater than 93dBA below rated output, A-weighted for 8-ohm loads.

Frequency response varies with mode: 20Hz to 20kHz (+0/-1.5dB) for 2-, 4-, and 8-ohm loads and 25V mode; 50Hz to 20kHz (+0/-1.5dB) for 70V and 100V modes, providing clarity and precision for diverse audio applications.

What Makes It Different

Power Share technology and multi-impedance operation set the CLA404 apart, allowing seamless integration into both traditional and distributed audio systems. Its four-channel architecture, multiple inputs, GPI ports, and secure connections emphasize its installation-friendly design, while the compact 1 RU half-rack format optimizes space usage.

Final Assessment

The AtlasIED CLA404 is a robust choice for installations needing 400W of four-channel Class D amplification across varied impedance formats. Merging low-impedance and constant-voltage compatibility, Power Share technology, and precise audio performance, it is ideal for restaurants, classrooms, conferences, presentations, and retail settings, providing a solid foundation for background music, distributed sound, or low-impedance reinforcement.