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Guangzhou DSPPA Audio Co.,Ltd


1500W Power Amplifier

MP3500 350W 70V-100V Power Amplifier
Rack mount amplifier in 3U height
70V, 100V and 4-16 ohm speaker outputs

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Rack mount amplifier in 3U height

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

Isolated transformer for human safety operation

Rated power 1500W, 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 that ensures working effectively


This amplifier is designed for commercial and industrial public address applications. Rack mount design in 3U type and rated power is 1500W.

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

> 85dB

Damping Factor


Input CMRR

Greater than 90dB

THD into 4W/1kHz


Frequency response

80Hz ~15kHz (±3dB)


<0.5%(1kHz,1/3rated power)



Power requirement

AC220~240V / 50~60Hz

Unit Size (mm)

(L×W×H) 484´480x132

Net weight

33.8 Kg

Front Panel


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

2. Power LED indicator

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

4. SIGNAL LED Indicator (output level)

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

6. TEMP LED indicator (high temperature indicator)

7. Unit’s fan exhaust window( Severely clipped waveforms reaching the loudspeakers)

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


● Make sure the AC mains voltage is correct and is the same as that printed on the rear of the amplifier.

● Damage caused by connecting the amplifier to improper AC voltage is not covered by the three-year US warranty. Make sure the power switch is off before making any input or output connections.

● It is always a good idea to have the gain controls turned down during power-up to prevent speaker damage if there is a high signal level at the inputs.

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