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Guangzhou DSPPA Audio Co.,Ltd


650W PA System Power Amplifier

MP2500 350W 70V-100V Power Amplifier
Rack mount amplifier in 2U height
70V, 100V and 4-16 ohm speaker outputs

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Rack mount amplifier in 2U height

70V, 100V and 4-16 ohm speaker outputs

Isolated transformer for human safety operation

Rated power 650W, 5 LED indicator for status display

Indications for power, signal, clip, protection and temp

Reliable protection from overheat, overload, clip & short circuit

XLR socket and 6.35mm jack for additional mixer or amplifier link

Excellent device of radiator cooling fan ensures working effectively


This amplifier is designed for commercial and industrial public address applications. Rack mount design in 2U type and rated power is 650W.

Both balanced and unbalanced line inputs are available for each channel. Balanced line output feeds to another power amplifier as well as secures the signal transmission is less noise and longer distance. 70V, 100V and 4-16ohm speaker outputs are convenient for installation when selection different speaker matching. A master volume control is included. Complete protection includes clip, short circuit, high temp and overload. With indications for power, signal, clip, protection and temp.




Rated power


Rated output voltage

70V/100V/4-16 ohm

Input sensitivity


S/N Ratio

> 80dB

Damping Factor


Input CMRR

Greater than 90dB

THD into 4W/1kHz


Frequency response

50Hz ~15kHz (±3dB)

Slew Rate


Power Consumption


Power requirement

AC220~240V / 50~60Hz

Unit Size (mm)

(L×W×H) 483´380x88

Net weight


Front Panel


1. AC power switch(1 is power on and the “power LED” is on )


3. Power LED indicator

4. CLIP LED indicator (Please reduce the gain to prevent

Severely clipped waveforms reaching the loudspeakers)

4. SIGNAL LED Indicator (output level)

5. PROT LED indicator (DC or output circuit shorted indicator)

6. TEMP LED indicator (hightemperature indicator)

7. Unit’s fan exhaust window

8. Volume (input attenuator)

Rear Panel and Connection


1. fan intake window

2. COM. Output

3. P1 output (4-16 ohm)

4. 70V output

5. 100V output

6. 220V AC fuse

7. XLR input

8. 6.35 mm socket input

9. 6.35mm socket link

10. XLR link

11. 220V AC power cord


● When the “Power switcher” is off, please pull out the power cord from the socket. Please keep the equipment out of water.

● To reduce the risk of electric shock, do not remove the cover.

● No user parts inside. Refer servicing to qualified service personnel.

● The symbol image008.jpg on rear panel indicates hazardous live. The connection of these terminals must be operated by the instructed person.

The unit connects to the mains by the plug. Pull out the plug when the unit is in fault or danger status. So the socket for the unit plugging must be set in the place can be easy to plug into and pull out the plug.

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