Description
The AtlasIED DMA401 is a 400W Digital Mixer Amplifier with DSP that is engineered for higher-power installations that demand consistent performance, system expandability, and precise audio control. Ideal for large commercial spaces, distributed constant-voltage systems, and high-output applications, the DMA401 maintains the DMA Series design philosophy of immediate usability, operating as a traditional mixer amplifier directly from the factory.
Delivering 400 watts of output power, the DMA401 supports a wide range of speaker loads and is designed to drive complex loudspeaker systems with confidence. Advanced configuration through the DMA App enables integrators to design multi-zone layouts, incorporate subwoofer systems, and link additional amplification via the AtlasIED LMA Series. The proprietary Link Bus allows the DMA401 to manage audio routing and performance conditions across connected amplifiers, simplifying system architecture.
A high-efficiency switch-mode power supply and robust output stage ensure stable operation under demanding conditions while maintaining low power consumption. The DMA401 is housed in a compact 1 RU half-rack chassis with included mounting hardware and features tools such as Push Here Diagnostic (PHD) to verify speaker wiring and load integrity during commissioning. The result is a high-power mixer amplifier that integrates cleanly, scales easily, and supports predictable, repeatable installations.
Features
• DMA Control mobile app available for iOS and Android
• Factory configured as a traditional mixer amplifier (no mobile app required)
• Multi-impedance capable (2Ω, 4Ω, 8Ω, 25V, 70.7V and 100V)
• Factory configured presets for 1 zone, 2 zone, zone expansion, and subwoofer
• Linkable with LMA amplifier
• Onboard DSP with AtlasIED loudspeaker presets
• 3 Mic/Line balanced Euroblock inputs
• 3 sets of RCA summed mono inputs.
• Optical input port for streaming audio from digital displays
• Priority Mute GPI
• Rack kit included
• Energy-efficient, 1 W standby GPI
• Compatible with remote wall controllers (AtlasIED DMA-V, DMA-VS)
• Compatible with WTSD audio inputs including DMA-BT and DMA-ML
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Shipping Information
Most in-stock orders ship within 1–2 business days. We ship via UPS, FedEx, USPS and truck with tracking on every order. Need it fast? Give us a call for expedited shipping options.
Why Buy From GearTechs
GearTechs has been serving churches, schools, and businesses for over 35 years. Every product we carry is one we stand behind. Our team of expert technicians is available to help you before and after your purchase.