UMX250 is a keyboard with a controller, which is flexible and suitable for use in many different situations. Whether you need to independently control computer synthesizers, MIDI sound sources or effects, or use them to operate sequencers or plugins — UMX250 can help you easily. It is easy to use and provides great support for your music creation.
This manual introduces the UMX250 25‑key USB/MIDI controller, covering safety notices, warranty terms, and system requirements. It explains how to power the unit via USB, AA batteries, or an external 9 V DC supply and details the MIDI and USB connectivity options.
The guide describes the controller’s hardware elements—keys, sliders, knobs, buttons, and footswitch—and provides step‑by‑step instructions for Play, Assign, and other operation modes, including how to configure MIDI channels, reset to factory defaults, and adjust key sensitivity. This manual is written in Chinese.
| USB interface type | Type B; USB 1.1 |
|---|---|
| MIDI interface type | 5‑pin DIN connector |
| Number of keys | 25 |
| Power options | USB, 3 × AA batteries, 9 V DC (100 mA) |
| Dimensions (H × W × D) | 215 × 97 × 495 mm |
You can power it via the supplied USB cable, three AA batteries, or an external 9 V DC power supply.
The factory default is Global MIDI channel 1.