will
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Setamp.
Sounds like ground...if you put your hand on it and it gets worse...but the culprit????
I don't recall your saying if the Taboo by itself has the buzz. If the pre is quiet, then by hooking it up and therefore by upping the source voltage to the Taboo, the buzz is worse....this sure could be the Taboo noise amplified. I suppose your idea of the power tubes could make sense...that after a certain level of warmup/expansion, the tube resolves a weak connection???
The question is, is it in both channels? If it isn't, have you switched the power tubes side to side? This would identify the bad tube if it is one side only. If it is in both channels, it may be a tube common to both channels, which you have a number of with your setup, but it sounds more specifically the Taboo since the CSP2+ is quiet...have you swapped all of the common tubes... rectifiers front inputs.
Can you listen to only the Taboo for trouble shooting and roll common tubes.
Or this anomaly could happen with the internal part issues I suppose.
I think the Uber should solve house noise too, but why not email or call Dave and ask him about the Uber....he may have tips for trouble shooting.
Then I would just call Steve Monday AM if you haven't figured it out by then.
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