link between speaker and floor

I like the Aurios Pros. Basically these are two metal disks with ball bearings between them. They don't have any spikes. I found they decoupled the speakers from the floor quite a bit more than spikes. I have heavy full range avalons, so the pro's were the best match.

The aurios give you more image focus and less haze. The presentation also seems to be quite a bit more natural. The room vibrates far less than before which is very good for the electronics - especially my turntable.

A potential downside is that the 'amount' of bass is perceived as being less. You don't have your room structure reinforcing it.

Another solution is to use Jenga Blocks with Home Depot cork dots adhered to either side. Works ok.

placing coins under the spikes will do it...
or get the pucks from any number of manufacturers: Audio Points' pucks are small & inexpensive

Be careful placing various "flats", "pucks" or coins underneath spikes. If you have hardened spikes connected to large, weighty speakers, the constant vibration can cause them to slowly dig or migrate through the metal "puck" and begin to bore into your flooring. I know that Bob Crump of TG Audio had a problem with this. Sean
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I second John 1's comment. Aurios Pro's are a major improvement under spiked speakers, either on a wooden floor or carpet.

I'll second Sean's comment--especially with regard to soft change. I had a pair of ProAc RS2s on Target RS4 stands (filled with sand) and the four spikes on each Target punched through the pennies I used in no time. Wasn't even that heavy... Figure 75 lbs for the stand, mebbe 30 lbs for the speaker, 25 lbs of sand for 130 lbs total distributed over 4 spikes is, er... about 32 lbs per spike. With a sharp spike tho', the pressure on the point gets *big* very fast.