The DSPPA DMA650U is the top model of the DMA60U series, delivering 650W on a single 100V line or a 4-16Ω output. It suits courtyards, horn-speaker runs and large halls handled as one sound zone.
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The DSPPA DMA650U is the most powerful unit in the DMA60U series, pushing 650W onto a single 100V speaker line. It is the pick when you need loud, even coverage over a big area handled as one zone: a mosque courtyard, a school sports ground, a warehouse perimeter lined with horn speakers or a large wedding hall.
DSPPA DMA650U power and speaker output
Rated output is 650W on mains. A rear switch sets the output to either 100V constant voltage for long speaker runs or 4-16Ω for low-impedance speakers. Unlike the smaller DMA60U and DMA120U, there is no 70V tap on this model.
- 650W on AC.
- AC 110-115V or 220-230V, selected with a voltage switch.
- THD below 1%; SNR of at least 75dB on AUX and 71dB on mic.
- Net weight 7 kg.
Planning a 650W speaker load
On a 100V line, add up the tap settings of every speaker and stay below 650W with headroom. Ten horns at 30W take 300W, leaving room for twenty ceiling speakers at 10W. That mix of indoor and outdoor speakers on one broadcast is where this amplifier fits best.
Mic inputs and music sources
MIC1 is on the front. MIC2 and MIC3 are balanced rear inputs with 48V phantom power, and MIC3 swaps with AUX2 through a selector switch. Mic sensitivity is 10mV; AUX and EMC inputs take 350mV. USB playback, Bluetooth and an FM tuner are built in, and an AUX OUT plus an extended preamp interface let you link the unit to other equipment.
Priority and emergency signals
MUTE comes first, then EMC, alarm and chime at equal level, then MIC1, then the remaining sources; the chime stays silent while an alarm is active. Rear short-circuit triggers start the siren (which has its own alarm output) or mute the system, so a control panel or external switch can drive them. Settings survive a power cut, and the unit supports an infrared remote.
Where the DMA650U fits in Saudi Arabia
- Large mosque courtyards and outdoor Eid prayer grounds.
- School playgrounds and morning assembly yards with horn speakers.
- Warehouses and factories needing paging across wide floor areas.
- Wedding and event halls that need high power on one line.
DMA650U or DMA6650U?
Both are 650W; the difference is control. The DMA6650U splits its output into 6 zones with a knob per zone, has 4 mic inputs, two RJ-45 ports for DMA20 paging stations and both 70V and 100V outputs, but it runs on 220-230V only and weighs 11 kg. The DMA650U is a single zone with a 100V-only line output, weighs 7 kg and has a voltage selector that also accepts 110V. If 650W is more than you need, the same series offers the DMA500U and DMA350U.
Frequently Asked Questions
Does the DMA650U have zones?
No, it drives a single line. For 650W split into 6 zones, choose the DMA6650U.
Does it support 70V speaker lines?
No. Output is 100V or 4-16Ω, set by a rear switch. The 70V tap is available on the DMA60U, DMA120U and DMA250U.
How many horn speakers can it run?
Keep the sum of the taps under 650W with headroom. Fifteen horns at 30W, for example, total 450W.
Specifications
- Model: DMA650U
- Series: DMA60U Series digital mixer amplifier
- Rated output (AC): 650W
- Backup power input: DC 24V
- Speaker output: 4-16Ω or 100V (rear selector switch), no 70V
- Microphone inputs: MIC1 on the front, balanced MIC2 and MIC3 on the rear (MIC3 shares a jack with AUX2 via a selector switch)
- MIC1/MIC2 sensitivity: 10mV ±1mV
- AUX1/AUX2/EMC IN sensitivity: 350mV ±50mV
- Other I/O: 2 AUX in, 1 EMC in, 1 AUX out, extended preamp interface, FM antenna terminal
- Built-in sources: USB, FM radio, Bluetooth
- Phantom power: +48V for balanced mic inputs (rear switch)
- Frequency response (MIC): 120Hz to 12kHz (±3dB)
- Frequency response (AUX): 80Hz to 15kHz (±3dB)
- THD: Below 1%
- SNR (A-weighted): AUX ≥75dB; MIC ≥71dB
- Tone control: Treble and bass 10dB (±2)
- Priority: MUTE > EMC = Alarm = Chime > MIC1 > others (chime is blocked during an alarm)
- Chime: Chime 1 and Chime 2 buttons, volume 0 to 15
- Control triggers: Siren short-circuit trigger with independent alarm output, mute short-circuit trigger, EMC signal input
- Control: Infrared remote, power-off memory, status display
- Power supply: AC 110-115V or 220-230V, 50/60Hz (voltage selector)
- Rear switches: Output mode switch (4-16Ω / 100V) and AC voltage selector
- Operating environment: -10°C to 50°C, 20% to 80% RH
- Net weight: 7 kg
Features
- 650W on a 100V line: dozens of speakers or a set of outdoor horns from one amplifier.
- Rear output-mode switch, 100V or 4-16Ω: choose a long speaker line or low-impedance speakers.
- 24V DC input: announcements continue from a backup battery.
- Mic inputs with 48V phantom and MIC1 priority: the imam or supervisor overrides the music.
- USB, Bluetooth, FM and two chime buttons: sources and alert tones built into the unit.