You're welcome Mitch. I heard of them initially from Jim Smith of Get Better Sound, one of the best ears and setup guy on the planet. He uses them under all his components (at least, last time I visited with him) but was particularly impressed with the 4" square models under his subwoofers. He said, "“I was frankly amazed – especially at the huge improvement from my REL 212 SE subs. Countless audiophiles said that the bass here was the best, most natural they ever heard” That's serious praise from a guy who can get pretty much anything he wants.
You're absolutely correct about suspended wood floors. I never understood why on earth anyone would couple speakers or subs to a large diaphragm. A friend of mine in Little Rock had exactly the same situation with large, expensive ProAC speakers with a mega Naim system. Going from direct coupling to the 4" HD EVPs under the ProAcs was a game changer. Icing on the cake was that when he played music loud, it was less annoying for his wife since the sound level was decreased significantly in the rest of the house; all that energy was no longer coupled into the structure. There is still an improvement on on concrete slabs but to a much lesser extent. I also like the value proposition; much less expensive than the shiny stuff. The only product that I've compared these with are Herbies, a noticeable improvement. With that said, in certain applications, Herbies Tenderfeet are a super value, especially for those on a very limited budget.
You're absolutely correct about suspended wood floors. I never understood why on earth anyone would couple speakers or subs to a large diaphragm. A friend of mine in Little Rock had exactly the same situation with large, expensive ProAC speakers with a mega Naim system. Going from direct coupling to the 4" HD EVPs under the ProAcs was a game changer. Icing on the cake was that when he played music loud, it was less annoying for his wife since the sound level was decreased significantly in the rest of the house; all that energy was no longer coupled into the structure. There is still an improvement on on concrete slabs but to a much lesser extent. I also like the value proposition; much less expensive than the shiny stuff. The only product that I've compared these with are Herbies, a noticeable improvement. With that said, in certain applications, Herbies Tenderfeet are a super value, especially for those on a very limited budget.