DSPPA MP60B User Manual

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Public Address System

MP3 Mixer Amplifier

MP60B

MP120B

User’s Manual

Welcome to use the public address system manufactured by DSPPA Company. For the better application of this equipment, please read the operation instruction carefully prior to use.

Guangzhou DSPPA Audio Co., Ltd.

http://www.DSPPA.com

D

1

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Message on Information of Instructions

The instructions contain the introduction to product function, introduction to appearance, technical parameters, schematic diagram of connection, safety precautions, and after-sales service for the broadcasting power amplifier with MP3 /preamplifier in the types of

MP60B/MP120B. It is necessary to read this manual prior to the connection and application.

The functions and relevant technical parameters described in the instructions shall be applicable as of the completion of development of this product. The functions and technical parameters shall be subject to future change without prior notice.

Please preserve the instructions properly for the future use.

Description Of Product

1.1 About MP60B/MP120B broadcasting terminal

MP60B/MP120B is advanced public address equipment integrating MP3 player, preamplifier and post power amplifier.

This equipment has two line signal input interfaces, one line signal output interface, and four routes of the microphone input interfaces, of which the signal from the interface of microphone 1# on the front panel shall be granted the highest priority level.

Integrating the whole set of the broadcasting program as the small-sized public address system including the sound source, partition, preamplifier, post power amplifier and volume control and other functions, this equipment is applicable to the sites needing the public address by the small-sized public broadcasting system.

1.2 Performance characteristics

 Combined power amplifier series with MP3, the preamplifier and post power amplifier.

 Plugged with U disc and other memory equipment to provide MP3 sound source.

 four microphone inputs, two Line inputs, and one Line output for link.

 Muting function.

 Individual volume control. Bass and treble tone control.

 A five-element LED level meter is provided for the quick and easy visual monitoring of sound level.

2 MP60B MP120B

- 1 -

Mixer amplifier

Mixer amplifier

Front Panel

2 3 10 11 12

POWER

ON OFF

1

POWER

2 4 6

OUTPUT

8 10

BASS

TONE

TREBLE

USB VOL

MP3 DISPLAY

AUX2 VOL AUX1 VOL

USB

MIC4 VOL MIC3 VOL MIC2 VOL

MP60B

MIXER AMPLIFIER

MIC1 VOL

MIC1 IN

4 5 6 7 8 9

1. Power switch(power indicator lighting as ON state)

For main power.

2. LED power indicator

For main power.

3. LED level meter

Indicate output level.

4. Bass control

Adjust bass response.

5. Treble control

Adjust treble response.

6. MP3 output volume control

Adjust treble response.

7. Line volume control

Adjust Line input volume.

8. Mic1-Mic4 volume control

Adjust microphone volume.

9. Mic1 input jack

Connect to microphone of unbalanced

30-600Ω with 1/4″phone plug. The muting function is activated while the signal is sent to

Mic1.

10. MP3 Display

11. MP3 USB input jack

12. MP3 Player control button

Note:

When all the five elements (+10dB) of the LED level meter remain lit, it indicates that the sound is distorted. In a such case, adjust each volume controlling knob, until LED element 4

(+8dB) and LED element 5 (+10dB) shall flashing.

- 2 -

Mixer amplifier

Rear Panel

8

MIC 2 MIC 3 MIC 4

AUX1 AUX2 OUT

MUTE

MAX MIN

1 2 3 4

1. Mute control

Adjust muting function.

2. Line 1 input and Line 2 input

Connect to linear source equipment.

3. Line output

Connect a recorder

4. Fan Exhaust Window

5. Speaker output 100V

6. AC fuse

Prevent the excessive AC current flow.

7. AC power Input jack （ ~220V-240V/50-60Hz/6A ）

Connected to AC power source.

8.

Mic2-Mic4 input jack

SPEAKER OUTPUT

COM 100V

CAUTION!

RISK OF ELECTRIC SHOCK

DO NOT OPEN

F4AL250V

Nur Sicherung 250V

Use Only With A 250V Fuse

Employer Unlquement Avec

~220V/50~60Hz/6A

5 6 7

Operation Instructions to MP3

plug the U-disc storing MP3 program into USB interface, and the equipment start playing automatically. Make use of the 12 buttons on the panel of the equipment to select the program to be played and to control the suspension of playing.

- 3 -

Mixer amplifier

Muting Function

This equipment provides muting function. The inputs from Mic2-Mic4, Line1, Line 2 are automatically muted by a input from Mic1, as the signal from Mic1 overrides other input signals.

The level of

MUTE can be adjusted within the range

MUTE from MAX to MIN by adjusting MUTE control button on the rear panel. It is preset at MAX before shipping from the factory.

MAX MIN

Precaution Of Installation

1. Do not block ventilation holes.

2. The amplifier should not be placed in any of the areas:

1) with poor ventilation;

2) exposed to direct sunlight;

3) with high ambient temperature or adjacent to heat-generating equipment;

4) with high humidity or heavy dust;

5) susceptible to vibration.

3. Make sure the power outlet conforms to the plug of the unit.

4. Do not use this unit if the electrical power cord is frayed or broken.

5. Always operate the unit with the AC ground wire connected to the electrical system’s ground.

6. If an alarm rings after the power has been on and the signal has been fed, there must be an of output short-circuit trouble. In a such case, please turn the power off. Do not turn on the power again, until the trouble shall be resolved.

- 4 -

Mixer amplifier

Packing List

No.

4

5

6

1

2

3

Specification

5×19 whole machine fixing screw

SY542 wire (AV terminal audio wire)

Instructions

U disc

Certificate

Plastic washer

Specifications

Model

Rated output

Output regulation

Speaker output

AUX output

Input Sensitivity

Frequency response

Distortion

The ratio of signal to noise ratio

Tone

Less than 3dB

MP60B

60W

100V

1V

Mic1,2,3,4 : 3mV( ± 0.5mV) unbalanced

Line 1,2 : 300mV( ± 30mV) unbalanced

65Hz-20kHz ( ± 3dB)

Less than 1% at 1kHz , 1/3 rated output voltage

Mic1 ,2,3,4 : Bigger than 80dB

Line 1 、 2 : Bigger than 80dB

Bass : ± 12dB at 100Hz

Treble : ± 12dB at 10kHz

MP3 Input Sensitivity

Protection

Muting function

230-280mV

AC fuse; DC voltage; overload; short-circuit.

Mic1 overrides other input signals with

0 ~ -30dB attenuation

AC 220-240V/50-60Hz

430 × 300 × 88mm

Power requirements

Dimensions

Power consumption

Gross weight

Net weight

Specifications are subject to change without notice.

90W

9kg

6kg

MP120B

120W

200W

10kg

7kg

Quantity

4

1

1

1

1

4

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CAUTION

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