✅ Universal compatibility with 4+ transistor types
✅ Includes 4x IN5404 protection diodes
✅ Compact and space-saving design
✅ High-quality fiberglass PCB material
✅ Clearly marked solder points for easy assembly
✅ Ideal for 50W-200W amplifier projects
✅ Stable performance under heavy loads
✅ Suitable for audio repairs or custom builds
✅ Cost-effective alternative to OEM boards
✅ Model D104 with proven reliability