# Speaker protection module, delayed start, 12-15VAC, stereo

> Stereo speaker protection module with delayed start (~3 seconds) and decoupling upon detection of DC voltage (~1V). Uses a 15A relay, two channels (R and L), status LED. Requires independent 12-15VAC power supply, cannot share power with other circuits. Dimensions 65x40mm. For BTL circuits, two modules per channel are required. Reference 9942.

- Page: https://sigmanortec.ro/en/speaker-protection-module-delayed-start-12-15vac-stereo
- Price: 26.63 RON
- Availability: Out of stock
- Reference: 9942 · EAN: 5946597873687
- Category: Electronic components > Protection Module
- Specifications: Input Voltage: 12-15VAC; Input Voltage Type: AC
- Package (shipping data): 0.045 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:50 (Europe/Bucharest)

## Description

Stereo speaker protection module with delayed start, reduces pops at start by delaying approximately 3 seconds and disconnects at the appearance of DC voltage of approximately 1V. It uses a robust 15A relay, is compatible with most amplifiers and offers clear monitoring via status LED. Separate power supply 12-15VAC, compact dimensions 65x40mm.
Dual-channel speaker protection board, providing a power-on delay of approximately 3 seconds and protection against excessive DC voltage (detecting a control voltage of approximately 1V). It uses a 15A relay, being compatible with most amplifier boards, ensuring safe and reliable operation. The status LED indicates the moment of protection and switches to normal operation mode after power-on.
The board operates on a dual circuit and REQUIRES an independent 12-15V AC power supply!
For use in BTL circuits it is necessary to use two modules per channel.
Specifications:
Supply voltage: AC 12-15V (independent power supply)
Main functions: Power-on delay (~3 seconds), DC protection (1V)
Relay: 15A
Channels: Dual channel, R and L
BTL Compatibility: Requires the use of two sets for BTL circuits
Power supply: Requires independent winding, cannot share power with other circuits
Dimensions: 65 × 40mm
Use:
The package contains:
1 x DIY Stereo Speaker Protection Board Kit
Depending on the batch, the board may come assembled or as a DIY Kit. It is usually assembled, but it is recommended to contact us before ordering to check.