Lamm ll2.1 a microphone???

A tube issue is music to my ears...
hate to think it might be something else. 
I'll do a tube swap and see how it goes. 

argon66 did you get your problem solved/identified?

Hi tooblue. 
Ordered them and waiting for shipment. 
Went for some Mullard cv4003 and Russian NOS 6h23eb's. 
Cant wait to try them. 

Please post when you have the issue in hand and good luck.

Sorry for the delay but the tubes sat at Canadian customs for far too long. Grrr.
Anyway I did a total tube swap and what a major difference. Even if tubes test well it doesn't mean jack in terms of overall performance. I have a tester and all my old tubes tested great but were noisy and one for sure was microphonic (picked up everything in the room including voices). 

I went for nos Mullard cv4003 and nos Russian 6h23p eb tubes. All are dead quiet by comparison. No microphony, lower noise floor. You just can't trust test results. 

I also tetubes my zesto phono stage stage with new gold lion 12ax7's. Very nice. Had sovtek lps tubes which I like but just couldn't a get super quiet quad.