BassX Speaker Protection PCB – Active, Protect, Clip & Signal Indicator

The BassX Speaker Protection PCB is designed to protect valuable speakers and amplifiers from power-on surges, DC faults, and clipping conditions. This compact and reliable protection board automatically delays speaker connection during amplifier startup and immediately disconnects the speaker if abnormal conditions are detected.

The circuit uses a high-current relay and transistor-based detection to ensure stable and fast protection response. LED indicators provide clear visual feedback for Active, Protect, Clip, and Signal status, making it ideal for amplifier testing and professional audio systems.

This board is suitable for DIY audio builders, amplifier repair technicians, and professional sound system designers who want a reliable speaker protection solution.

Features:-

• Speaker DC protection
• Power-on delay to prevent speaker pop noise
• Clip detection indicator
• Signal presence indicator
• Active / Protect status LEDs
• High-current relay output (30A)
• Compact PCB design
• Easy integration with most power amplifiers

Applications:-

• DIY audio power amplifiers
• Home theater amplifier systems
• Professional PA amplifier protection
• Subwoofer amplifier protection
• Audio testing and repair setups

Indicators:-

• ACTIVE – amplifier operating normally
• PROTECT – protection mode activated
• CLIP – amplifier clipping detection
• SIGNAL – audio signal presence

Technical Notes:-

• Designed for amplifier speaker protection circuits
• Uses standard through-hole components for easy assembly
• Compatible with most audio amplifier designs