COLIN WONFOR: Popping noise on turn off

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Colin Wonfor

Q: Hello Colin. The unit in question is a Lafayette 4 channel decoder. When turning off my system, there is a popping noise from the rear speakers unless I turn the volume down on the decoder first (I'm only using the rear outputs). I'd like to eliminate the problem. I've searched bypass capacitor and coupling capacitor for a solution but I don't think I'm using the right terminology. Any help with this would be appreciated? Cheers – Jennifer Dunn.

A: Jennifer, I am not familiar with the said beasty, but it could be a design fault. A PSU cap discharging too soon is an issue but without the circuit, well ….. I would be stabbing in the dark. Sorry I can’t go further on this right now.

Thank you for the question.

Colin

http://www.www.elsdonwonforaudio.com/

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