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Speaker Support - Three Feet or Four

I'm thinking of going to a three-point foot system for my Gershman Acoustics Sonogram floor standing speakers.

Reason for doing this is that the hardwood floor shifts with the seasons and a four-point system can require adjustment throughout the year.

Each speaker weighs 63lbs, has a baseplate footprint of 10.75" wide and 16" deep. The basplate is 0.5" larger all around than the actual speaker cabinet

I believe the centre of gravity to be just below mid height and relatively centred from a footprint perspective.

I plan on mounting the two feet that levels the sideways attitude on an outrigger.

Are there any advantages to placing the outigger feet at the back or the front?

or is this just a matter of using the best config for stability based on centre of gravity?

Is there any advantage to having the feet equally spaced or use the maximum distance possible within the confines of cabinet footprint + outrigger dimensions ?

Or should I just stick with four feet?

Note: I don't have to worry about kids or pets bumping speakers :-O

Thanks in advance
williewonka

Showing 2 responses by m-db

m-db's avatar
m-db
1,037 posts
 
   I live on the California Central coast near the Loma Prieta epicenter with everything on a wood floor. My 145lbs. speakers came with three precarious non-connected metal cones per speaker.
   I made eight large 3x2x1.5" clunky looking walnut blocks. I fully covered their bottom and top surfaces with heavy duty felt and Gorilla brand clear thickish two sided tape to attach to the speaker. Despite the increased overall stability the felt and tape combination provides some bi-directional movement that the cones didn't.
   I have know idea why this is but the focus and sound stage is noticeably improved. Lucky me. 
m-db's avatar
m-db
1,037 posts
 
   Last night at about 8:30 pm while listening to Miles Davis' 'Nefertiti' we had a small 2.3 followed by a moderate 4.5 earthquake. Not really a big deal but my 45" tall speakers visibly rocked from side to side. 
   Had I not replaced their three non connected spikes last week I'm almost certain there would have been an issue. Strangely, the thirtieth anniversary of the Loma Prieta quake is this Thursday. Once again, lucky me. 
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