Gray said:
I've got the original Atacama SE24 stands with their massive, fillable uprights packed with sand.
They are extremely heavy, inert and stable. I haven't done the comparisons so I'm in no position to argue but I would be interested for any person that has heard a difference to explain to me the theory behind how a heavier, more inert stand could make bass sound worse than a lighter stand. In other words I don't think a stand can be too heavy - unless, the spikes are pinning your foot to the floor.
This is one area where I am absolutely flummoxed.
However I do know, and have proved in the past (by demonstration), that many speakers are very sensitive to the stand that they are on. Assuming we deal with the obvious, correct height, decent construction, no resonances etc, the performance appears to vary with the mass and stand/floor and stand/speaker interfaces.
In most cases mass affects the bass response, but how it does so is not always obvious. Mostly it makes the bass tighter, more extended but less obvious, generally I consider this a good thing. But not always, I have heard heavyweight stands rob a speaker of it's pace and rhythmic capabilities, leaving a fat, ploddy sound that makes the music almost dirge like, the great Epos ES14 was exactly like this, it's own light, open frame stand being by far the best option. The use of 'paving' or granite slabs under the speakers have, in my experience, a similar effect to using heavier stands.
The stand/floor interface makes a big difference too, good spikes, ideally fitting in the cross of Phillips type screws driven hard into the floor will improve sharpness, focus and detail resolution and I have rarely heard a downside here. Between the stand and the speaker I have also tried pretty much all the options, top spikes, 'Stillpoints' of various types, resilient pads and the ubiquitous BluTac.
Some appear to couple the speaker to the stand, others decouple and isolate the speaker. I have heard all the various methods work well with some speakers and not with others. Why this is the case, I have no idea, as I said the science is beyond me.
If you really want to get the best from your speakers, you will need to try some options. I do not get involved with 'serious' hi-fi as much as I once did, but these days I find few people that actually bother with this at all. If I am setting up a system for them, I use spikes and BluTac and leave it at that.