Description
2.1 / 3 Channel Speaker Protection Circuit
Protect your amplifier and speakers with this reliable 3-Channel Speaker Protection Circuit, designed for 2.1 and 3-channel amplifier systems.
It features 3 separate high-power relays, with each channel having its own independent protection and relay control. The circuit can detect speaker short circuits or overload conditions through three separate sensing inputs and automatically disconnect the speaker output when protection is required.
A built-in NTC thermal switch provides overheating detection, along with simple ON, PROTECT and THERMAL LED indications so you can easily monitor the circuit status.
The module supports both 12V AC and 12V DC operation, making it easy to integrate with different amplifier designs. It also includes convenient input/output connectors and binding-post connections, which can be used directly or connected with wires depending on your installation.
For high-power applications, the circuit uses Leone 30A T-Type relays and a dual-layer JLCPCB-made PCB. Quality components such as genuine 1% MFR resistors and Vishay capacitors are used for reliable operation.
Key Features
- 3 independent protection channels
- Suitable for 2.1 and 3-channel amplifiers
- 3 × Leone 30A T-Type relays
- Separate overload / speaker-short sensing for each channel
- NTC-based thermal protection
- ON / PROTECT / THERMAL indicators
- 12V AC or 12V DC operation
- Inbuilt 12V operating supply
- Input and output connectors
- Binding-post or direct-wire installation
- Dual-layer JLCPCB PCB
- Genuine 1% MFR resistors
- Vishay capacitors
- Compatible with most amplifier designs
Note: PCB colour and component brands may vary depending on availability. Equivalent components may be used while maintaining the required specifications and performance.
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