Disklavier

Anyone have any ideas about the best place for the yamaha monitor 
speakers. I have the DC1m4 coming and because it is the 5ft 3 in, I may 
not have room for the humidifier tank underneath, so I was wondering 
about putting my speakers on the floor to gain room. Any thoughts about 
the speaker quality on the floor vs mounted under piano? I have a 
carpeted floor and the speakers when mounted aim basically down into 
the carpet so I thought they might sound better aimed out and up from 
the floor. There is the cosmetic issue of course. Does the sound board 
have any purpose with the speakers when mounted directly below it?

Thanks