ES-38     Speaker Protector for Stereo Power Amp.  
( AC/DC  12 ~ 24V)

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Protects your valuable speakers from damages by abnormal dc voltages at the outputs of the power amplifier. 
The circuit continuously checks the dc voltages at the outputs of right & left channel.
 If the dc voltage exceeds around (+/-) 0.65V, this protector instantly disconnect the speakers from the amplifier outputs thereby preventing the speakers from damage

Applications : 
Power amplifier speakers protection