Terrible Booms


Hi everyone, I'm sad because I really tried everything (marble base, Gaia isoacoustic, anti-seismic bases, etc.)) but my speakers (ProAc D40R) in my environment (suspended parquet - with voids below) creates terrible booms . I managed to get a good compromise (tube traps and panels) but it's not as I would like. Maybe I should take small speakers, or in a closed box. The fact is that I like my speakers and I don't feel like changing them.
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Your ProAc's show a bass down to 20hz....that is a big claim for 6.5" drivers that look like they cover the midrange and bass....I would try disconnecting the lower 6.5 and just listen to that for a while and see if the two of them were moving too much air for that kind of flooring....if that doesn't sound better you might want to invest in some thick throw rugs. I have mounted throw rugs to a side wall and rear wall using carpet tack strip nailed into the studs and then just hang the rug on them..
@soundsrealaudio,I own the newer D48R and while 20Hz is too ambitious a claim, these speakers go down easily to close to 25Hz. Example is "Fading Sun" from Tejre Isungset's album "Winter Songs". I would suggest OP to rather scale down to the ProAc D30, if everything that was suggested above does not work. By disconnecting the lower 6.5, he would be killing the scale and hence the performance of this amazing loudspeaker.

Thank You all ... Your interventions have been fantastic. I wanted to tell You that I have solved everything: I'm happy and I'm enjoying. I would never have changed the speakers, I love them.
I don't know how to insert photos of the system to show it ... if this is possible tell me how to do!
Thanks again to everyone