Speakers on carpet or bare floor?


I moved my floor standing bass reflex 3 ways from a bare floor to a carpeted room and noticed much softer vocals but also a softer (wooly?) bass. I have been supporting the speakers with furniture cups. Will stands firm up the bass without losing the softer edge on the vocals? You can see my system on the bare floor
under budget systems, "my NADS". Thanks
garn509
I really like the looks of these stands; I have similar ones on my GamuT L5s.

http://www.oregondv.com/index.html
I should have said that I think good stands with spikes will greatly improve your bass. There are cups you can put under the spikes to protect the floor, probably not necessary with rugs. Here is a more exact referral.

http://www.oregondv.com/Floor_Standing_Speaker_Stands.htm