AMP, DSP 4X100W @70.7/100V 1RU

The AtlasIED DPA404 is a powerful networkable, four-channel DSP power amplifier, ingeniously crafted to meet the demands of audio systems requiring substantial output within a compact space. Delivering 4 x 100 watts at 70.7V, it offers flexibility with 70.7V/100V and 4Ω/8Ω capabilities. Its 1RU design, universal voltage compatibility, and optional Dante network audio make it an ideal choice for integrated audio systems.

Ideal Use Cases

Perfect for installations demanding multiple independent amplifier channels, the DPA404 shines in commercial audio setups, educational institutions, and houses of worship. It supports both distributed audio and low-impedance speaker systems, making it versatile for diverse configuration needs. Its networkable features and DSP make it suitable for environments where centralized control and space-saving are priorities.

Why Choose This Model

The DPA404 stands out with its compact 1RU profile combined with a robust 400-watt total output. Its Class AB Switching Hybrid BASH topology ensures efficient performance across a 20Hz–20kHz frequency range. With balanced input sensitivity of 750mV and impedance of 40k, it offers precise integration with professional audio sources. The optional Dante integration further enhances its connectivity scope.

Installation and Integration

Measuring 19 inches wide, 1.75 inches high, and 15.5 inches deep, this amplifier fits snugly into standard rack setups. Weighing only 13 lbs, it simplifies installation without sacrificing channel output. Its universal voltage compatibility (110–120V and 220–240V) with automatic switchover ensures seamless integration across different regions. Input configuration considers maximum signal levels of +14dBU for inputs 1–4 and +7dBU with Dante, supporting diverse professional audio applications.

Performance Highlights

Delivering 100 watts per channel at 70.7V, the DPA404 maintains a low total harmonic distortion of 1% at rated output, with a signal-to-noise ratio exceeding 100dB (A-weighted). Its 73dB crosstalk at 1kHz ensures clear, interference-free audio transmission. The full-range 20Hz-20kHz frequency response and DSP filtering capabilities allow precise sound customization, affirming its role beyond a basic amplifier.

What Makes It Different

Combining four-channel amplification, DSP, and network readiness in a single 1RU component makes the DPA404 unique. Its support for both distributed-voltage and low-impedance applications, along with optional Dante capability, offers flexibility without mandating network-audio reliance. The automatic voltage switchover enhances its adaptability to various power conditions, while its performance specifications and integration features set it apart as a comprehensive audio solution.

Final Assessment

For systems requiring versatile amplification, DSP, and network capabilities in a compact form, the AtlasIED DPA404 is an exceptional choice. Its comprehensive feature set, including 70.7V/100V operation, 4Ω/8Ω capability, and optional Dante, ensures adaptability across numerous audio configurations. Supported by a 36-month warranty, it promises reliability and performance in diverse professional environments.