What should be under my speakers?


I have Sonus Faber Grand Piano Home speakers in a 20' x 17' room with wood floors. The speakers have spike feet, and each one is sitting on a 1 inch thick, 12" x 12" slab of granite. Each piece of granite has a square piece of carpeting under it, as a further buffer. I know I probably could figure this out with a lot of experimentation, but what impact is the carpet likely having on sound quality? Would it be better (Subjective, I know) to have the granite slabs sitting directly on the wood floors? How would the sound change if I ditched BOTH the carpet and the granite? I would like to maximize bass impact, because these speakers are a bit thin in that regard. Thanks.
gipp

Showing 1 response by lrsky

Do you have any options as to the positioning of the speakers, with regard to how they 'load' into the room, i.e. short wall, long wall.
By placing the speakers so that they a firing in the same direction as the floor studs, (assuming it's not on a slab), you will help the bass to develop; whereas firing across the studs, breaks up the bass.
Years ago, I experimented with speakers in this regard, in my Audio store, and asked people to listen to the speakers positioned in opposing directions, cross hatch, and then, firing with the studs. With normal bass output speakers, it was unanimous--that is everyone preferred firing along the floor studs. Interstingly, no one knew exactly what I was experimenting with--so it was like a blindfold test in some ways.

The outriggers are really good. AND, as theaudiotweek points out, the Sistrum work very well. I was not convinced until I tried them in my own system.