Sidssp,
I am not trying to raise the speakers. I am wondering if maple really does sound better than concrete.
I have proven to myself with three different speakers that spiked to concrete sounds better than not spiked. My curiosity is whether or not a platform (in this case maple) would be an improvement.
One issue I have with using a maple platform is that, while the platform would be spiked to concrete, the speakers would not be spiked directly to the maple. The speaker spikes would be on disks.
Downsides to platforms include cost, aesthetics, and increased complexity in moving speakers. Depending on whether or not I buy premade or use a DIY platform my speakers would be raised by 5-6". Not only would that change the sound by raising the tweeters but it would change the first reflection point for the bass. Aesthetically I prefer shorter speakers and the simple, clean look of nice spikes on carpet.
But those are issues I am willing to deal with if there is a definite sonic advantage to be gained by using platforms. DIY would involve significantly less money but significantly more time. And either DIY or premade would involve a real pain in the butt as far as installation goes.
Jl35, I am skeptical of manufacturer's claims. I have been fooled too many times. I am trying to get actual user experience. Thank you for the information on the improvement with the MS spikes.