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Floor standing speaker isolation advice needed.

I have an older pair of KEF Reference Model Twos that currently sit on their brass(?) feet on the floor. The floor is tile but not solid cement underneath. I bought two .5" thick granite tiles for underneath the speakers and am wondering if I need to do anything else like put the spikes on the brass feet, add sorbothane under the granite tiles and/or under the brass feet or something else I should be considering? Things sound good on the top end but seem a bit subdued/muddy in the bass region. The KEFs are being driven by a Parasound Halo A23 and I’ve got a HSU VTF-3 MK 2 helping out the bass, mostly for movie duty.


Thanks for any advice.
asahitoro
cd318
2,636 posts
 
@jriggy Yes, you shouldn’t need fancy stands but it definitely a good idea to let all the speaker panels breathe freely. All Harbeths are constructed that way to allow the resonances to fall below the threshold of hearing in terms of frequency range.

The M40s have always been fantastic speakers and are the sum of one man’s attempt at getting as close to neutrality in the midband as possible with the fewest compromises. Does any speaker do voices better?

jhills
619 posts
 
My best advice to the OP, keeping it cost effective and simple, is not to overwhelm yourself by trying to many things, in to many combinations. Using what you have, first try the individual items you have - by themselves. Listen and compare and if none of the products, by themselves - spikes, sorbothane, granite slabs, etc - brings the sound back to what it was when coupled to the cement with spikes, then try what you have in simple combinations. Usually the simplest solution ends up being the best solution....Jim
jb0194
476 posts
 
Has anyone compared IsoAcoustics Aperta 200 to Gaia (the former being able to accommodate my loudspeakers’ weight/footprint and within my budget)?
asahitoro OP
244 posts
 
I haven’t compared to those but I have some IsoAcoustics Apertas under my KEF LS50 Wireless in my man cave setup. Excellent stands that helped clean things up a bit.

jhills, excellent advice that I’m taking. I have so much stuff already to play around with and if I do spend more, I’ll at least have an idea of what might work best based on materials, application, etc. from experimenting.
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