I decided I dont want to open it to re-bias, but it is something that has to be done, sooner or later... :rolleyes: The sound is ok, maybe a little hardening at VERY loud volumes, my speakers are 96 db sensitive... So I am going to replace it, the candidates at the moment, by order of preference are: [URL]http://www.melody-europe.com/GR/AB22.htm[/URL] [URL]http://www.melody-europe.com/GR/AB40.htm[/URL] [URL]http://www.melody-europe.com/GR/AB50.htm[/URL] [URL]http://www.ornec.com/product/GB/Classic_16.0_Integrated_Tube_Amplifier/[/URL] [URL]http://www.passionhifi.com/classic16.6.htm[/URL]