need ideas to raise speaker stands

Ok. Up to now this has been a closely guarded secret. Do you have any sheets of that porous-looking styrofoam-like material used in rectangular sheets to cushion components in shipping cartons? Some pieces are relatively sturdy and won't deform with weight on them. Cut and fit. Your speakers will even sound better than if you blue-tacked them to the stands.

Why don't you (1) buy taller stands, or (2) tilt the speakers back a little?

hockey pucks

I have to disagree with Paulwp. I believe your sound will be better if the speakers are coupled to the stands rather than isolated. I use "bluetack", but in a very small amount, just to prevent scratching the bottom of the speaker and keep it from sliding on the stand.

Regarding how to raise the stands: Are your current stands spiked to the floor? Can you build a small platform and transfer the spikes to the platform? Maybe use some paving stones to give it some height and weight, and place your stands on top of that.

Another idea would be to get some threaded studs the same size as your spikes, and some short lengths of tubing with the same threads on the inside. You could then "extend" your spikes. However, this could cause some stability problems, depending on how much height your trying to achieve.

Neither of these are ideal fixes, but you were looking for suggestions.

JD