DSPPA MP250UB – 250W Mini Digital Mixer Amplifier with Bluetooth, USB, FM, Dual MIC & EMC Priority System
The DSPPA MP250UB is a compact 1.5U mini digital mixer amplifier designed for commercial public address and background music systems. It integrates Bluetooth, USB playback, FM radio, dual microphone inputs, AUX inputs, and EMC emergency priority, making it a powerful all-in-one solution for medium-scale installations requiring flexibility, reliability, and easy operation.
Technical Specifications:
Amplifier System:
- Type: Mini Digital Mixer Amplifier
- Model: MP250UB
- Rated Output Power: 250W
- Output Modes:
- 70V / 100V constant voltage
- 4–16Ω constant resistance
Audio Inputs:
Microphone Inputs:
- MIC1: Front panel 6.3mm jack (priority input)
- MIC2: Rear panel XLR input
- Phantom Power: Available on MIC2
Line Inputs / Outputs:
- 2 × AUX inputs
- 1 × AUX output
Emergency Inputs:
- 2 × EMC inputs (100V / 375mV)
- 1 × EMC output
Priority system:
EMC / MIC1 > AUX1 / AUX2 / MIC2
Audio Sources:
- Bluetooth
- USB playback
- FM Radio
Integrated multimedia playback without external devices.
Audio Performance:
- MIC Frequency Response: 200Hz – 10kHz (±3dB)
- AUX Frequency Response: 100Hz – 16kHz (±3dB)
- Distortion: <1% (1kHz)
- Noise: <10mV
Tone Control:
- Bass: ±10dB
- Treble: ±10dB
Control Features:
- Master volume control
- Independent volume control:
- MIC1
- MIC2 / AUX2
- AUX1
- Mode selection:
- Bluetooth / USB / FM / AUX
- Infrared remote control support
According to the front panel (page 2), the unit includes display screen, USB interface, playback controls, and dedicated knobs for MIC, AUX, bass, treble, and master volume.
Connectivity & Interfaces:
- Speaker Output Terminals:
- 70V / 100V
- 4–16Ω
- AUX OUT for system expansion
- FM antenna input
- Backup power input: DC 24V
From the rear panel diagram (page 3), the device supports flexible wiring including AUX, MIC2 balanced input, EMC input, and external system integration.
Protection System:
- Overload protection
- Short-circuit protection
- Electrical safety protection
Power & Electrical:
- Power Supply: AC 110–120V / 220–240V (switchable)
- Backup Power: DC 24V input
Physical Specifications:
- Dimensions: 250 × 230 × 66 mm
- Net Weight: 3 kg
- Gross Weight: 3.7 kg
Key Features:
- 250W output power
- Bluetooth + USB + FM playback
- 2 MIC + 2 AUX inputs
- EMC emergency input system
- 70V / 100V / 4–16Ω output support
- Phantom power for MIC2
- Bass & treble control
- Remote control operation
- Compact 1.5U rack design
- Backup power support (DC 24V)
Applications:
- Mosques
- Schools
- Offices
- Shops
- Restaurants
- Clinics
- Medium commercial PA systems
- Paging systems
- Background music systems
Connect Gates Professional Opinion:
From Connect Gates’ perspective, the MP250UB is one of the strongest compact PA amplifiers in this category. It delivers high power (250W) while maintaining a small form factor and full feature set including Bluetooth, USB, and emergency priority. It is an ideal choice for projects that need higher output than MP120UB but still require a simple, all-in-one solution without moving to large rack systems.