LM3886 based amp oscillations?

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Moderator: Joe Malone

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Joined: Sat Mar 15, 2008 8:43 pm

LM3886 based amp oscillations?

Post by Sammas »

Hey Joe and gang. I thought I'd raise this question here since you are probably more familiar with LM3886 based amps then me.

I have a KRK v4 monitor that uses an LM3886. It suddenly, and at random times develops a nasty ringing sound (somewhere in the upper mid-range). I can tell you that in Sydney's heat it occurs much quicker. During winter the monitor may be turned on for days at a time without any problems but in summer it might start ringing within 5 minutes of being turned on.

I'm just wondering if this problem maybe directly associated with the LM3886 or if its more likely a problem within the crossover.

Any tips?

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