DMA6650U 650W 6 Zones Digital Mixer Amplifier with Remote Paging Station

Name: DMA6650U 650W 6 Zones Digital Mixer Amplifier with Remote Paging Station
Brand: Guangzhou DSPPA Audio Co., Ltd.

Features

● Backlit graphic dot-matrix LCD screen delivers clear, comprehensive visual feedback for enhanced operational usability;
● 5-segment LED VU meter array provides real-time visual output signal level monitoring；
● Multi-source digital media player featuring built-in Bluetooth streaming, FM tuner, and USB/SD MP3 playback;
● Dual RJ-45 remote paging ports with 24V DC bus power support up to 6 cascaded paging consoles per channel over distances up to 600m with zone override controls.
● Dedicated rotary volume attenuators provide independent gain adjustment for each of the 6 speaker zones;
● Features priority zone override and one-touch switching for instant, targeted zone broadcastingT;
● Flexible dual power supply design supporting AC mains and 24V DC battery backup with main power isolation;
● Extensive I/O matrix comprising 4 MIC inputs, 1 emergency signal input, 4 line-level inputs, and 1 line output for external extension;
● Multi-mode output stage supporting 70V/100V constant-voltage lines for long-distance distributed systems and 4–16 Ω low-impedance connections;
● ierarchical priority architecture (MUTE > EMC IN > SIREN > MIC1 > CHIME > Remote Paging > Line/Media inputs) automatically ducking lower channels for critical safety announcements;
● Comprehensive audio shaping with Master Volume, discrete controls for Zone, Siren, Chime, EMC, MIC, and AUX, plus Master Treble and Bass EQ;
● Dry-contact short-circuit trigger interface activates the internal siren generator via remote automated control systems;
● Remote short-circuit trigger input enables third-party logic controls or fire alarm systems to instantly mute all audio channels;
● Dedicated 1-channel EMC emergency line input allows priority signal intrusion from external emergency broadcast matrices;
● Includes an IR remote control for convenient wireless management of system media sources and master parameters;
● Non-volatile power-off memory automatically restores previous system settings and playback states upon system startup.

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Introduction
Specification

The DMA6250U Series Digital Mixer Amplifier offers robust signal routing and high-efficiency amplification for complex public address setups. Supporting dual-channel RJ-45 connections for DMA20 Remote Paging Stations, it enables clear long-distance paging across wide commercial zones. Integrated with a front-panel visual display, the unit accommodates extensive input options, including 4 MIC, 4 AUX, and integrated media players (USB, FM, Bluetooth, and TF card). Built-in intelligent protection circuitry actively guards against thermal overload, output clipping, and short circuits to ensure uninterrupted long-term system health.

Brochure-6-ZONES-Integrated-All-PA-System-with-remote-paging-station-DMA6250U-DMA6350U-DMA6500U-DMA6650U_01.jpg

Model		DMA6250U	DMA6350U		DMA6500U		DMA6650U
Power		AC220-230V 50 / 60Hz
Input Sensitivity	MIC1	5mV ±1mv (Balanced XLR Input)
	MIC2/MIC3/MIC4	5mV ±1mv (Unbalanced Phoenix Jacks)
	AUX1	350mV±50mv (Unbalanced RCA Input)
	AUX2	350mV ±50mv (Unbalanced Phoenix Jacks)
	EMC	350mV ±50mv (Unbalanced Phoenix Jacks)
MIC Frequency Response		120Hz～ 12kHz (±3dB)
AUX Frequency Response		80Hz～ 15kHz (±3dB)
THD		<1%
Treble Adjustment Range		10dB（±2）
BASS Adjustment Range		10dB（±2）
Phantom Power		+（48±5）V
Rated Output Power		250W	350W		500W		650W
Static Power Consumption	AC220-230V Power Supply	21W	21W		40W		40.8W
	DC24V Power Supply	22.8W	23W		34.5W		37.7W
Rated Power Consumption	AC220-230V Power Supply	337W	450W		600W		800W
	DC24V Power Supply	183W	252W		323.5W		435W
Output Voltage of Port		4-16Ω,70V,100V(fixed voltage output)
Current		2A		3A		4A
Protection		F3.15AL		F6.3AL		F8AL
Machine Dimension(D×W×H)		430×390×88mm
Package Dimension:		545×500×165mm
Net Weight		8.6KG	9KG		10.1KG		11KG
Gross Weight		9.8KG	10.2KG		11.3KG		12.2KG

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