What your choice speakers with spikes or speakers with a vibration isolation device?

That's what I remember about the company.

They have isolation platforms for floor standing speakers and subs as well as little ones for desk top speakers.

I'll repost if I figure out the name of the company (pretty certain I read comments/reviews here on A'Gon).

DeKay

Dekay,

 is this what you meant?https://solidairaudio.com/shop/hifi-isolation-platforms/ukishima-small-platform/

I found it:

Auralex SubDude ($70-$80).

I had confused it with another platform manufacturer who makes stands that look like square/rectangular scissor/baby gates.

Anyway, the SubDude is reviewed to be a good choice for suspended wood floors.

When I had wood floors in the 70's/80's I used carpet padding and horse hair pads under Rogers AB1's, but they probably only went down to 40 Hz (if that).

DeKay

The other brand is Isoacoustics, which I've seen @ Guitar Center.

They have a sub platform that's $50-$60.

DeKay

I’d never go back to spikes.

Can’t believe how I fell for all that crap, for so long.

Right now I’m listening to Astral Weeks (first time this year!). No spikes, just a wonderfully organic sound with plenty of natural decay everywhere.