Beta 3 U15a Service Manual =link= Jun 2026

If the high-frequency unit sounds raspy or has no output, the diaphragm may be burnt. The manual explains how to remove the driver, unscrew the back cover, and replace the diaphragm without damaging the voice coil gap. Troubleshooting the Amplifier Module

The U15a is designed for easy serviceability. Key areas of maintenance include: A. Woofer and Driver Replacement Beta 3 U15a Service Manual

The rear metal plate acts as both a user interface and a giant heatsink. According to official documentation from Beta Three Audio , the layout includes: If the high-frequency unit sounds raspy or has