@raysmtb1, looks like you went with Solidair Audio, the Ukishima Aluminium isolation feet, six of the 10 kg. feet for the 4-10 sub and six of the 15 kg. feet for the Moab? I see you passed on the their suspension bridges which would have added significant cost. I suspect you used the remaining hardware from the spring elevated feet you had there before. The reason I am asking is the Moabs are on my shortlist of speakers.
Wife and I are going back and forth on setting up a dedicated home theater/hi-fi in one of the spare bedrooms upstairs (carpeted) vs. the living room (laminate wood on concrete slab). If I get the Moabs, and end up with alot of vibration, regardless of which room, I would want to purchase them asap. So conservatively, I believe I should include them in my budget.
What your choice speakers with spikes or speakers with a vibration isolation device?
I am in the camp of vibration isolation. I think it makes sense that the less energy transfer into the floor goes into the air. I found these really cool magnetic isolation feet that I’ve never seen before. They are very affordable, the guys are from England. Here’s a link, The company is called solid air audio.https://solidairaudio.com