Speaker protection schematics

Protect your amplifier output with this innovative circuit, safeguarding against capacitor noise and overheating. This design utilizes a clever LM393 comparator and thermal protection for a robust and reliable audio system.... [read more]

The innovative circuit offers unmatched protection and delay features essential for audio amplifiers and beyond. It ensures a smooth AC line transition with a 1sec delay, safeguarding transformers from surge damage. Additionally, it delays the connection of headphones to eliminate transient noises, ensuring clear sound. The circuit also monitors DC output continuously, protecting against voltage drops. Errors are flagged visually with LD3 and audibly with BZ, enhancing system reliability. Its robust design, supported by multiple relays, minimizes contact degradation for long-term stability. Ideal for both passive and active speakers, this circuit ensures reliable audio performance in any setup.... [read more]

Protect your loudspeakers with this essential 12V protection circuit, safeguarding against damaging DC voltage spikes after amplifier failures. Featuring a 3-second delay and clear LED indicators (green OK, red delay), this circuit ensures optimal loudspeaker performance and prevents destructive pops. Build this reliable safeguard for each amplifier and confidently address potential power supply issues.... [read more]