I've been following another thread about cornet2's and hum. When I started reading the other thread, I was saying to myself 'Ha!' I don't have any hum or noise at all. Then I went and turned my Jolida 502 up to half way and now I'm not saying 'Ha!' anymore. I don't normally listen to music that load as it seems to annoy my neighbors, not sure why. I have a question about the bugle vs the cornet. I have been under the assumptions that as the cornet2 is tube and the bugle is not, that the exact opposite of what harryf is saying would be true. Why would the non-tube solution seem to be better with tubes? Thanks - appreciated the resonses in advance.