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To Couple or Decouple?

I've recently purchased a pair of Acoustic Zen Crescendos. I now have them positioned in the room, and I am ready to add the spikes. The floor in my room is a suspended wood type. After researching whether or not to spike speakers or decouple them on a suspended wood floor, the majority seems to recommend not spiking them directly to the wood floor, but decoupling them. So here are my questions:
1). Do I couple or decouple?
2). Anyone use the Boston Audio Tuneblocks S under your spikes? How do you like them?
3). Any recommendations of other decoupling devices to use?
Thanks for you input!
louisl
simonmoon's avatar
simonmoon
517 posts
 
I used to live in a house with a suspended wooden floor.

My speakers sounded much better DECOUPLED.

Coupled, the bass was muddy and boomy.

Now I live on a solid slab, and they sound much better coupled. 
mijostyn's avatar
mijostyn
8,570 posts
 
simonmoon, how did you decouple the loudspeakers from the floor?
audition__audio
1,488 posts
 
My initial suggestion, as someone else has said, is to couple onto decouplers
gakerty's avatar
gakerty
175 posts
 
I have a (carpeted) suspended floor as well.  I put Isoacoustic Gaias + Gaia spikes under my Tannoy X8TFs and the difference was significant.  Bass was less muddy, actually not muddy at all after it, and even imaging improved. This was one tweak that made considerable difference!
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