2 months ago I bought Arcam 300 and right from the beginning i hear some low frequency noise through my speakers, like it would have bad power filtration. This nouse is hearable without signal and i can hear it between pauses also in 3 m distance (stereo direct), no matter what volume level and input is. After 80 dB this low freq. noise is louder. After switching input on dvd audio and back, this noise isnt so hearable anymore, i could hear it only standing close to speakers. When reciever is on, then volume level of noise doesnt rise anymore, but when i switch power off and then on again, then big noise comes back and then again on dvd audio input on and back and then noise is quiet again (same story). I think that this low freq. noise shouldnt be hearable even when i listen to it standing very close to speakers. Anyway with Denon reciever i didnt hear low freq. noise even on high volume level. Can it be software or hardware problem? Do all Arcam 300 have that noise when u listen to speakers standing close to them and its 01 dB (no matter what input)? Would like to know what John Dawson thinks, but also i would appreciate some comments from other Arcam 300 owners.