My first thought is a transformer buzzing,possibly due to delamination..If you have spare tubes,which anyone who owns a tube amp should have,you can try replacing the tubes 1 at a time & see if the buzz goes away,meaning it was a bad tube, but If you go through all the tubes & it's still buzzing,I would bet on a transformer,which will mean contacting Leben..
Good luck..
Odeon Rigoletto - tweeter buzz
Hello everyone,
I am writing to share my experience with some great gear and ask for a piece of advice.
I recently got a pair of Odeon Rigoletto 2020 speakers (German brand, 95db on 8ohm)—and I absolutely love them. The soundstage is beautiful: intimate, detailed, and deeply engaging. I’m pairing them with a Leben CS300XS, which I also adore. It’s a magical combination—except for one issue.
I’m getting a buzz from the tweeters, even when no music is playing and the volume is at zero. The buzz slowly fades in as the tubes warm up. This also happened—though slightly less—with my previous Sonus Faber speakers (much less sensitive), so it’s not specific to the Odeons.
I’ve already done some homework and tried disconnecting all inputs, so the amp is running completely solo. The buzz persists. Everything—amp, streamer, lamp, router—is plugged into a basic, unfiltered power strip. I know this may be an issue and I’ve just ordered a DC blocker and a filtered power strip with surge protection, hoping they’ll help.
If anyone has dealt with a similar issue— tube amp, buzzing from tweeter with nothing playing—I’d really appreciate your insight!