Feature

●Main function: the UPC1237 circuit as a core has a switch-on delay function, DC protection and a protection function against power failure damage.
●500 W amplifier: this speaker protection board can be used to control 500 W amplifiers, with each channel using a high-quality relay control. Practically placed terminal strip plugs for signal input and signal output.
●Sign out immediately: DC monitoring and real-time protection for speakers support instant log off of the speakers when switched off.
●Compact size: the speaker protection board has a compact size, a board size of only 6.9 x 5.7 cm, and the circuit is reliable and easy to weld.
●12V to 24V AC --- This speaker protection board uses 7812 as a voltage regulator and has a wide supply voltage in the range of 12V to 24V AC.


Description

The speaker protection board has two main functions: to protect the audio amplifier and speakers during the start sequence when the amplifier output could have DC voltage, and to protect the speakers in the unlikely event of an amplifier power level failure where the DC component would damage the speaker voice coil. The core of the speaker protection board is the UPC1237 dedicated circuit.

Technical data:
Power: AC 12-24 V.
Switching on Delay: Support
DC Protection: Support
Failure Damage Protection - Support
PCB Size: 6.9×5.7cm

Package includes:
1 Set × Speaker Protection Board (disassembled parts)

Note:
This kit requires electronic knowledge and skills, please make sure you know how to assemble and use it.