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Huge difference in sound : Spikes vs. Vibrapods

I have a pair of Martin Logan prodigy speakers which after reading a few discussions about coupling and decoupling, I put of Vibrapods. So I have decoupled the speakers from my tile floor.
Several questions now:
With this setup I das this tingling feeling in my stomach once in a while, which you get from a powerful bass, when the sound really drops low, like with a baritone singer. Should you be able to *bodily* feel the bass once in while or is this what is called a boomy bass?
When I put my speakers on spikes, I immediately had the impression that the speakers could not go as deep as they used to go before.
This gut feeling was completely gone. (I do not experience this all the time of course, only at certain, very low passages with a double bass e.g.) and I had the idea that the base is lacking almost a halve octave. Is somehow has lost its punch a bit
So when you read my short description here, do you feel that my bass sounded to boomy with the Vibrapods and that the less authoritative bass with the spikes is the right sound.
O personally seem to prefer the bass with my speakers on pods.
tekunda

Showing 1 response by garys

garys
65 posts
 
I've had a similar experience with my floorstanders, a pair of custom-made dynamic speakers with Dynaudio drivers. When they sat directly on the floor, there was some irritating grungy boominess in the mid-bass. Using Vibrapods eliminated that boominess and tightened the mid-bass, but it also brought out the deep bass and created that "bodily" feel you describe. I have an old house with hardwood floors (covered by rugs). The floor does seem to move a bit with the deep bass--not the goal for a purist, but the floor movement is reasonably well damped and does give a warm feel. At times I wish the deep bass were tighter, but on most of the music I listen to, it works pretty well.

On the other hand, I have a pair of Biro L/1's (excellent bookshelf speakers but limited in deep bass) on 24" speaker stands with spiked feet. Between the speakers and the stands, I've used both Vibrapods and spikes. Here, the Vibrapods do nothing to enhance the bass, but instead tend to muddy it.
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