Key facts
- Brand
- Yamaha
- Model
- STAGEPAS 250M
- Category
- Audio Power Amplifier
- Documents
- 2
- Languages
- ZH
- Last added
- 2000-01-01
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Yamaha STAGEPAS 250M Portable PA System User Manual
This manual introduces the STAGEPAS 250M portable PA system, which combines a 10‑inch speaker cabinet with an integrated active mixing console. It describes the system’s features such as two‑band crossover, built‑in EQ, reverb, limiter/compressor, and the ability to connect multiple instruments and audio sources.
The guide covers safe installation, power‑on procedures, input and output connections, console controls, and detailed troubleshooting steps for common issues like no sound, distortion, or limiter activation. Safety warnings and handling instructions are also provided to protect both the user and the equipment. This manual is written in Chinese.
Yamaha STAGEPAS 250M specifications
| Maximum output power | 250 W |
|---|---|
| Speaker power (SPEAKER) | 200 W @1 % THD |
| Maximum SPL | 116 dB (1 m) |
| Frequency response (MUSIC/SPEECH) | -3 dB, 0 dB, +1 dB @20 Hz‑20 kHz |
| Total harmonic distortion | ≤0.5 % @20 Hz, 1 kHz, 20 kHz |
| Power consumption | 35 W |
| Weight (speaker + mixer) | 13 kg |
| Speaker frequency range | 55 Hz‑20 kHz (-10 dB) |
| Low‑frequency driver | 10" (25 cm) cone |
| High‑frequency driver | 1" (2.54 cm) compression driver |
Source: Yamaha STAGEPAS 250M User Manual
All Yamaha STAGEPAS 250M documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How do I safely transport the STAGEPAS 250M?
Make sure the power is off, disconnect all cables, use the built‑in handle to carry the unit, and keep a clear distance from walls and other objects.
Why won't the power turn on?
Check that the supplied power cable is correctly connected to a proper AC outlet, ensure the ventilation openings are not blocked, and verify that the LIMITER indicator is not flashing.
What should I do if I hear no sound?
Make sure the external instrument or speaker is properly connected to the mixer, set all LEVEL and MASTER LEVEL knobs to appropriate positions, and confirm the SPEAKER jack is linked to the included 500S speaker.