Lamm ll2.1 a microphone???


This wonderful preamp is sooo sensitive that it even pics up conversation in the room and feeds it through the speakers. 

Could this his be a tube problem?
thoughts??

thanks 
argon66
Didn't have this issue with my LL2 Deluxe that I owned a few years ago but my LL2.1 Deluxe brand new right out of it's crate had the issue and it was a problem with one of the tubes, switched it out and all was fine and have had no issues for the 18 months I have owned it.
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. 
Hi tooblue. 
Ordered them and waiting for shipment. 
Went for some Mullard cv4003 and Russian NOS 6h23eb's. 
Cant wait to try them.