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Guangzhou DSPPA Audio Co., Ltd

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1. Display Screen
2. USB Interface
Insert a USB to provide programs to built-in MP3.
3. Play/Pause
In USB and Bluetooth mode, press this button to
pause / play.
In FM mode, press this button to search the radio
automatically.
4. Last Song/ (Last Radio in FM)
In USB/Bluetooth mode, press this button to
switch to the “Last Song”.
In FM mode, press this button to switch to the
“Last Radio”.
In FM/Bluetooth/USB mode, long press this
button to turn down the volume.
5. Next Song/ (Next Radio in FM)
In USB/Bluetooth mode, press this button to
switch to the “Next Song”.
In FM mode, press this button to switch to the
“Next Radio”.
In FM/Bluetooth/USB mode, long press this
button to turn up the volume.
6. Mode Button
It can switch to Bluetooth mode (BLUE), USB
mode (USB), line input mode (AUX) and FM
mode (FM).
7. MIC1 IN
This button has priority function. (Level with EMC
IN on the rear panel)
8. MIC1 VOL.

Adjust the volume of MIC1, turn clockwise to turn
up the volume, and turn counterclockwise to turn
down the volume.
9. MIC2/AUX2 VOL.
Adjust the volume of MIC2/AUX2, turn clockwise
to turn up the volume, and turn counterclockwise
to turn down the volume.
10. AUX1 VOL.
Adjust the volume of AUX1, turn clockwise to turn
up the volume, and turn counterclockwise to turn
down the volume.
11. BASS VOL.
Take the central position as the benchmark, turn
counterclockwise to turn down the bass, and turn
clockwise to turn up the bass.
12. TREBLE VOL.
Take the central position as the benchmark, turn
counterclockwise to turn down the treble, and turn
clockwise to turn up the treble.
13. MASTER VOL.
Adjust the level of all signals (except for EMC IN
on the rear panel), turn clockwise to turn up the
volume, and turn counterclockwise to turn down
the volume.
14. POWER
Press “ON” to turn on the power, while press
“OFF” to turn off the power.
15. LEVEL LED
Display the audio output level.

Summary of Contents for MP250UB

Page 1: ...User Manual Guangzhou DSPPA Audio Co Ltd MP250UB Mini Mixer Amplifier www dsppatech com ...

Page 2: ......

Page 3: ...n must be provided in the working environment of the device to avoid excessive temperature during its operation which may cause damages to the device Please unplug the device from power socket in raining and wet days or if it is not in use for a long time Please disconnect the power plug from sockets to ensure the device has been completely disconnected from power source before any component is re...

Page 4: ......

Page 5: ...CONTENT Introduction 1 Product Overview 1 Product Features 1 Front Panel 1 Rear Panel 3 Operating Instructions 4 Remote Controller 4 Specification 5 Packing List 5 ...

Page 6: ...eal choice for public address system For better installation commissioning and use of the product please read this manual in detail before installation Product Overview Product Features Built in Bluetooth radio and USB function 2 MIC IN 2 EMC IN 2 LINE IN 1 LINE OUT 100V or 70V constant voltage output 4Ω 16 Ω constant resistance output Support IR remote control With priority function priority is E...

Page 7: ...n has priority function Level with EMC IN on the rear panel 8 MIC1 VOL Adjust the volume of MIC1 turn clockwise to turn up the volume and turn counterclockwise to turn down the volume 9 MIC2 AUX2 VOL Adjust the volume of MIC2 AUX2 turn clockwise to turn up the volume and turn counterclockwise to turn down the volume 10 AUX1 VOL Adjust the volume of AUX1 turn clockwise to turn up the volume and tur...

Page 8: ...the Bluetooth antenna 3 Radio Antenna Interface Connect the radio antenna 4 DC24V Power Input DC24V backup power input interface 5 Audio Power Output Terminal Note No terminal can be connected to the Ground wire no matter directly or through other devices 6 AUX OUT 7 AUX1 IN 8 AUX2 IN 9 Audio Source Selection Switch AUX2 MIC2 Note Please turn down the volume or turn off the device before using the...

Page 9: ...rch the Bluetooth device MIXER AMP BLUETOOTH for pairing with wireless transmission distance 10m 3 USB Mode When a USB is inserted it will be adjust to USB mode automatically Plug and play 4 LINE Mode Press the MODE button to display AUX on the digital screen and enter the AUX mode 5 FM Mode Please refer to the part 3 4 and 5 of Front Panel for operation details Remote Controller The remote contro...

Page 10: ...ntenna SMA Male Connector 1 piece Model MP250UB Power Supply AC110 120V AC220 240V 50 60Hz Select via the switch MIC1 IN Sensitivity 10mV 10 MIC2 IN Sensitivity 15mV 10 AUX1 IN Sensitivity 350mV 10 AUX2 IN Sensitivity 350mV 10 EMC IN Sensitivity 350mV 10 MIC Frequency Response 200Hz 10kHz 3dB AUX Frequency Response 100Hz 16kHz 3dB Noise 10mV Distortion 1 1KHz Treble Adjustment 10dB 2 Bass Adjustme...

Page 11: ...he specification will be subject to changes without notices Guangzhou DSPPA Audio Co Ltd Address No 1 Xiahe Road Jianggao Town Baiyun District Guangzhou China Post Code 510450 Tel 86 20 37166520 Website www dsppa com ...

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