I have a good friend who lives in the next building and this person was absolutely crazy about music it was his life - so he checked around for the BEST Audio equipment he could buy in his budget - he was not looking at the BEST of the BEST but of what he could afford and he bought...
DENON CD player
McIntosh 120w/c Tube Amp / Preamp
B&W 801f speakers
He had lots of other GOOOOD hardware too.
BUT ... BUT... all this top quality Audio hardware sounded like Shiiiit at his place !!! He used to come over to my place and cry at how much better my comparatively second quality hardware sounded compared to what he was getting.
He called sound engineers who came with Audio meters and analysers - charged him a lot made a few suggestion of Mods to the positioning and room modifications and the final sound was about the same. He called some heavy duty Interior Decorators who specialised in room accoustics - spend lots of more money and still NADA !! Not much difference. The sound he got from his EXPENSIVE sound setup was never upto the mark. He moved house too and the sound was the same ... no ....no ... not same.... WORSE !!
I bought my Luxman Amp and Equaliser from him when he upgraded to the Mac - The Luxman sounded very nice and smooth at my place but was not so nice at his.
A few years back he gave up on Audio and he has moved out of this city and got rid of his old equipment.
Moral of this story is that you may have any brand of Audio equipment but it is truly luck dependant on how the combination is going to finally sound in refernce to each other and with the Accoustics of the room.
EDIT: I must mention this - my friend had this fantastic Vinyl Record player (cannot remember its name) that was abs TOP-OF-THE-LINE at its time it looked deadly and he had a Koetsu cartridge attached. This was so up market that my Linn Sondek looked like a Frisbee thrower in comparison - SERIOUSLY !!