DSPPA MP6425 User manual

Professional Public Address System

MP6425

MP6438

MP6450

Power Amplifier

USER MANUAL

Before operating, please read this manual completely

GuangZhou DSPPA Audio Co., Ltd.

http：//www.dsppatech.com

FEATURES:



Transformer isolated 100V, 70V and 4Ω outputs, balanced, no grounding.



5 LED indicators for status display .



XLR socket and 6.3 mm jack for amplifier link.



Short circuit output protection & LEDdisplay.



Series amplifiers of high output poweravailable.



Support both AC power and DC 24V power supply

FRONT PANEL:

AC power indicator

Unit’s Fan Intake Window

PROTECTION LED Indicator (DC

fault or short circuit output protection

Indication)

TEMPERATURE LED Indicator(high

temperature indication, >90 )

CLIP LED Indicator (Please reduce

the gain to prevent severely clipped

Wave forms reaching the

loudspeakers)

Power output LED Indicator (Output

level)

REAR PANEL:

Notice: Input 3 and 13 are prior to other inputs.

Fan Exhaust Window

100V Signal Input

XLR InputSocket(Priority)

XLR InputSocket(Program)

XLR link OutputSocket(Pre.out)

COM output terminal

4Ω output terminal

70V output terminal

100V output terminal

10.

24V DC fuse-B Parallel

(Connection）

11.

AC Power Swich

12.

Input signal gain control

13.

6.3mm input socket(withpriority)

14.

XLR input socket(with Program)

15.

Pre. Out signal gaincontrol

16.

6.3mm Link output socket(with

Pre. Out)

17.

24V DC Input Terminal

18.

24V DC fuse-C Parallel

19.

240V AC Power cord

20.

240V AC fuse

OPERATION:

Make certain that speakers and input sources are properly connected before switching on.

Keep volume level turned down to minimum before switching on.

Protection LED Indicator lights on while operation when faults happen. Switch off the apparatus

immediately and correct the faults before switching on.

INPUT CONNECTION:

The Input sockets/terminals are on the rear

panel under the label “IN”. There are three inpu

ways: 100v input terminal, two XLR input

sockets (figure 1), and two 6.3mm RCA input

sockets.

Positive

Negative Input

OUTPUT CONNECTION: Figure 1 3-pin XLR Input Sockets

Speaker output terminals are on the rear panel. The terminal under the label “COM” is

COMMON. The terminals under the labels “4Ω, 70V, 100V” are Hot. The connection ways

should be COM-4Ω / COM-70V / COM-100V.

Normally the “rated power” (70V / 100V) output terminal is used in output connection. The

connected speaker should be with a transformer, and the gross power of speakers should be

less than the rated power of the amplifier.

“Rated Impedance”(4～16Ω) output terminal can be used when speakers are fixed closely, and

the gross impedance of speakers should be 4～16Ω.

XLR terminal or 6.3mm RCA terminal under the label “OUT” is line output terminal.

NOTE：



Only choose one pair of terminals for speakerconnection.



Never connect two Hot terminals (labeled 4Ω, 70V, 100V)together.

SPECIFICATIONS

Model MP6425 MP6438 MP6450

Rated Power 250W RMS 380W RMS 500W RMS

Input sensitivity 1V

S/N Ratio >85dB

Frequency Response 80Hz～16kHz / ±3dB

THD 4

Ω

/1kHz <0.5 %

Cooling Style 12V DC Fan

Indicators Power: Red, Clip: Red”, Sound: Green, Protection: Red,

Temperature: Orange

Protection Turn on delay, thermal, DC fault, short circuit

220V AC Fuse F6AL F8AL F10AL

24V DC Fuse

FB15AL/FC10AL

FB/FC: 15AL FB/FC: 20AL

Power Supply AC220V / 50-60Hz 24V DC

Power Consumption 500W 760W 1000W

Dimension 88×483×390mm

Gross Weight 17kg 19.3kg 20.6kg

Net Weight 16kg 18.3kg 19.5kg

Specifications are subject to change without notice.

Guangzhou DSPPA Audio Co., Ltd.

CAUTION

●

For safety, when “Power switch” is off, please detach the power plug from the

receptacle.

●

The apparatus shall not be exposed to dripping or plashing and no objectsfilled

with liquids, such as vases, shall be placed on the apparatus.

●

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

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