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AUDIO FORUMS >> General Discussion and Support >> Low level hum in CSP2+
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Message started by Hibuckhobby on 03/15/16 at 15:23:07

Title: Low level hum in CSP2+
Post by Hibuckhobby on 03/15/16 at 15:23:07

Title says it all. It's not real loud and I don't notice it when music is playing. I have changed rectifiers, but that didn't impact it. Just occurred to me to swap left and right driver tubes, but they have to cool down first ;)

If that doesn't do it, any suggestions as to where to look next?
regards,
Hibuck....

Title: Re: Low level hum in CSP2+
Post by Steve Deckert on 03/19/16 at 02:17:40

First find out if the low level hum is on both channels.

Find out if the hum goes away when you disconnect all of the input RCA cables from the CSP3.

Make sure your output level controls are not turned all the way up.