DMA6650U

DSPPA DMA6650U - 6-Zone Digital Mixer Amplifier, 650W, 100V / 4-16 Ω

The DSPPA DMA6650U is a high-performance Class D digital mixer amplifier designed for professional multi-zone public address systems. Delivering 650W of output power, it supports both constant voltage (100V) and low-impedance (4-16 Ω) speaker loads. The unit integrates multiple functions including MP3 playback, Bluetooth, FM radio, microphone and line inputs, and zone paging control.

DMA6650U works with DSPPA DMA20 remote paging microphones via dual RJ45 ports, supporting up to 6 stations per channel with transmission distances up to 600m. It features a backlit LCD screen, 5-segment level indicator, zone volume knobs, priority and mute functions, and supports USB, SD, Bluetooth, FM, and emergency inputs.

The amplifier provides full audio control with independent volume, bass/treble adjustment, strong cut, and remote triggering. Housed in a 1U rack-mountable chassis, it is ideal for commercial, educational, and institutional environments.

Functionality:

• 6 independent audio zones with volume control
• output power: 650W
• speaker load support: 100V / 4-16 Ω
• 4 microphone inputs (MIC1 with XLR and +48V phantom)
• 4 line inputs (RCA and Phoenix), 1 line output
• EMC input - emergency override
• USB, SD, Bluetooth, FM - MP3 playback
• LCD screen with backlight - user-friendly interface
• 5-segment LED level indicator
• priority logic: MUTE > EMC = SIREN > MIC1 > CHIME > paging > LINE/AUX
• strong cut and one-touch zone switching
• SIREN and MUTE short-circuit trigger inputs
• power supply: AC 220-230V / 50-60Hz and DC 24V
• compatible with DMA20 microphones - up to 6 stations per channel, up to 600 m range
• 1U rack-mountable chassis - dimensions: 430x390x88 mm

Features:

• high efficiency Class D design
• full integration of mixing and playback functions
• emergency operation via DC 24V input
• tone control: bass and treble ±10 dB
• protection against overload, clipping, short circuit, and overheating
• intuitive front panel and IR remote control
• ideal for schools, offices, commercial and institutional installations

The DSPPA DMA6650U is a comprehensive solution for professional AV systems requiring reliable zone mixing, paging, and audio control in a compact format.