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E-mail: info@dsppa.com

Guangzhou DSPPA Audio Co.,Ltd


Cost Effective Mixer Amplifier

MP212U 6 Zones Mixer Amplifier with USB/SD/ FM
Built-in MP3/Tuner/USB/SD card inputs
6 zones output with pre-amplifier, 6 channels @ 100V outputs

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Built-in MP3/Tuner/USB/SD card inputs

6 zones output with pre-amplifier, 6 channels @ 100V outputs

3 LINE& 2 MIC inputs with individual volume control

Mute function, easy to insert priority broadcast

Each zone with independent switch; bass and treble controlled

With level indicators and 5-unit LED display

Output short-circuit protection


MP260U/MP212U is advanced public address equipment integrating MP3 player, FM tuner, zone manager (6 zones), preamplifier and post power amplifier.

This equipment has three line signal input interfaces, one line signal output interface, and two 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. Each sound source input (including the MP3 player and FM tuner built in this equipment) shall be provided with the independent volume adjustment button, and the preamplifier shall be provided with the treble and bass adjustment knob. The six zones are subject to the output at the constant voltage of 100V. Any zone shall be provided with the independent switch control button in addition to a button for the operation of all such six zones. There is the LED digital tube display screen, which is used to display the working status of the equipment.

Integrating the whole set of the broadcasting program as the small-sized public address system including the sound source, zone, 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.




Rated output


Output regulation

Less than 3dB

Speaker output


AUX output


Input Sensitivity

Mic1,2 : 3mV(±0.5mV) unbalanced

Line 1,2,3 : 300mV(±30mV) unbalanced

Frequency response

65Hz-20kHz (±3dB)


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

The ratio of
signal to noise ratio

Mic1 and 2 : Bigger than 80dB

Line 1、2 and 3 Bigger than 80dB


Bass : ±12dB at 100Hz

Treble : ±12dB at 10kHz



MP3 Input Sensitivity



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

Muting function

Mic1 overrides other input signals with
0 ~ -30dB attenuation

Power requirements

AC 220-240V/50-60Hz

Power consumption




Gross weight


Net weight


Specifications are subject to change without notice

2.Description of Appearance

2.1 Description of front panel


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

2.LED power indicator

For main power.

3.Zone ALL ON button

4.Zone button of six

5.LED level meter

Indicate output level.

6.Bass control

Adjust bass response.

7.Treble control

Adjust treble response.

8.MP3/SD/TUNER output volume control

9.Line volume control

Adjust Line input volume.

10.Mic volume control

Adjust microphone volume.

11.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 Mic 1.

12.MP3/TUNER Display

13.MP3 USB input jack

14.MP3/TUNER Player control button

15.Sound of output selector button

16.MP3 SD jack

NOTE:When all the five elements (+10dB) of the LED level meter remain lit, it indicates that the sound is distorted. In such case, adjust each volume controlling knob, until LED element 4 (+8dB) and LED element 5 (+10dB) shall flashing.

2.2 Description of rear panel


1. Mute control

Adjust muting function.

2. Mic2 input

Connect to the microphones at unbalanced 30-600 Ω with 1/4 ″phone plug. The signals from Mic2 be muted by the signal from Mic1.

3. Line 1 input, Line 2 input & Line 3 input

Connect to linear source equipment.

4. Line output

Connect a recorder

5. Fan Exhaust Window

6. 6 Zone Output terminals

Connect to speakers.

7. AC power connector

Connect to AC power source.

8. FM Antenna

Note:When connecting to speakers, use one pair of speaker output terminals only.

3.Connection Diagram


3.Operation Instruction

4.1 For MP3

Connect the lines properly according to the above connection diagram, plug in the power, and turn on power switch on the front panel. Under the default condition and after the switch-on, this equipment will play the program which was played prior to the previous switch-off. For example, if the raio program was being played prior to the previous switch-off, the radio program will be played automatically after this switch-on. In order to play MP3 program, please press the “MP3/TUNE” playing operation button or “SELETCOR” key for switching.

1. To play MP3 program

1) Start playing: Switch to MP3 playing state by the above way (If MP3 program is being played, such

operation is omitted), plug the U-disc storing MP3 program into USB interface, and the equipment start

playing automatically. Make use of the 14 buttons on the panel of the equipment to select the program to be played and to control the suspension of playing.

2) U/SD: The MP3 player built in this equipment is able to play the program from USB interface or to play the program from SD interface. This equipment will select the program on the memory plugged

finally to play. For example, it is playing the program from USB interface, and then plug SD card into the equipment, and it is switched automatically to play the MP3 program on SD card.

2. To play tuner radio program

Switch to “TUNE” playing mode by the above way, and then start to play the radio program.

1) To search radio station:

Make use of the button on the panel of the equipment to search automatically from the low-frequency range to high-frequency range, and the searched radio stations will be stored to the storage number starting from 1 in order so as to facilitate the direct invoking of the radio station in the future.

2) Invoking of radio station: The channel of radio station searched and stored automatically will be invoked directly for playing in the future. Make use of “or” button on the panel of the equipment to select the storage number in order to invoke the radio station for playing.

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