Hi, These two amps are the main contenders to replace my ageing Yam DSP-A3090. I had a demo of them last week, fully expecting the Arcam to come out on top, especially on the stereo music side of things. various aquiantances expected the same result. I was shocked, as were others, to find that the Denon sounded better with music and about the same (though slightly less clear maybe) than the Arcam. Indeed, so many people have been surprised at this, that I am going to another dealer this weekend for another listen. The demo I already had involved some mission sub/sat combo - I confess, I did not pay much attention to them because I have a sub/sat setup and wanted something similar to listen to. The main problem I found was that there seemed be little or no mid range with the Arcam, that the Denon either filled, or "faked" with a rather more coloured sound. Whether the amp was not set up properly, or the speakers were just too cheap and nasty, or faulty, or the Arcam does not like sub.sat combos, or indeed the Denon really did perform better, I do not know. This time, I will be using the same speaker setup as at home - a Bose AM15 setup (no, don't laugh, they fit with my/swmbo's 0 floor space requirement even if they don't suit "hi-hi" requirements) - as really, it only matters that it sounds good with MY speakers and not that with some f.o. big £8k+ speaker system. So I'm looking for some tips on what I should ensure they have set up on the Arcam when I go in - I WANT to prefer the Arcam, but if it doesn't cut it sonically to my cloth ears, then the Denon it's gonna have to be. Some test material suggestions would be appreciated also. Help me want this amp! cheers.