
DSPPA 250W 6 zones Mixer amplifier with MP3/FM/USB/SD /MP225U
The DSPPA MP225U is a 250 W public address amplifier that combines an MP3 player, FM tuner, 6-zone splitter, preamplifier and power amplifier in one unit. All six zones output 100 V, so one amplifier can feed speakers spread across several areas of a building.
Six 100 V zones. Each of the 6 zones has its own on/off switch, and one more switch turns all 6 zones on or off together. You decide which areas hear the music or the announcement.

USB, SD and FM sources. The built-in MP3 player plays from USB and SD, and the FM tuner gives radio, each with its own volume knob. This covers background music without extra equipment.
Microphone priority. There are 2 microphone inputs, and MIC 1 on the front panel has the highest priority with a muting function. When someone speaks on it, the announcement takes over from the music.

Line inputs and output. 3 line (AUX) inputs accept other sources, and 1 line output can pass the signal to another amplifier to extend the system. Treble and bass knobs adjust the tone of the preamplifier.
Status display and protection. An LED screen shows the working status of the amplifier. DSPPA lists protection against overload and short circuit.
Who it's for / Works with
DSPPA describes this amplifier for places where a small public address system is needed. It drives 100 V line speakers.
Good to know
- Power supply is AC 220-240 V, 50/60 Hz.
- DSPPA now lists this amplifier on its MP225U page under the series name MP2625II. Only the specifications that its page and datasheet agree on are shown here.
Technical Specifications
| Model | MP225U |
| Rated output | 250 W |
| Speaker output | 100 V |
| Zones | 6, each with its own switch, plus an all-zones switch |
| Microphone inputs | 2 (MIC 1 with priority and muting) |
| Line inputs | 3 |
| Line output | 1 |
| Sources | MP3 player (USB, SD), FM tuner |
| Tone | Treble and bass controls |
| Display | LED status screen |
| Protection | Overload, short circuit |
| Power supply | AC 220-240 V, 50/60 Hz |
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