My exciter speakers start clicking very loudly

Hi dear diyAudio community,

I use a Dayton DAEX32EP-4 exciter with a XY-502 Digital Power Amplifier and a powersupply with 24V and 1.4A. At the beginning everything worked out fine, but after using it for an hour or so the exciter started clicking. I also tried other exciters and the same happend. Does someone of you know what the problem could be? I have uploaded two videos to my drive which you can find here.

Thank you very much.

Best,
SonicDriver
 
Member
Joined 2015
Paid Member
According to your videos, a DC pulse about 0.5 seconds in lenght is forcing the the exciter to make the noise, with no audio signal applied. This may be related to the protection circuit inside the power supply, or to a chip-amp fault. Try a different DC power supply, anything between 5 and 24v is good enough to see in the issue is coming from the power rail. Keep the input signal of the XY-502 amplifier shorted (or the volume at zero) while performing the test.