Speakers on floor?

I have a low ceiling in my basement 84" so I like the sound with the tweeters lower than ear level. I have 20" monitor speakers and 12" stands and also dedicated 16" stands and I prefer the lower stands much better. I also have them tilted up with old school Audioquest sorbothane dampers. I've also experimented with the speakers on the floor tilted up and I like that presentation as well. I think it all depends on the room but for me with the low ceiling, low stands sound better...

I use small full range speakers in a small room. I had them up on stands to bring the sound to ear level. Then switched to floor mount on 'tilted' stands. The bass is incredible. I should mention the speakers is John Blue JB 4's.. As I write this I'm listening to the Eagles long road out of Eden album. The bass is much deeper with floor stands. For my room : 10 x 16, speakers on the floor is much better, with tighter, and more responsive bass, and a smooth mid and upper range. It make it feel like You are sitting in a club with the band right in front of you.

Putting full range speakers on floor does seem to deepen the bass, in my experience, but adds so much resonance that the sound at least in my experience ends up sounding confused.
(or is it me that is "confused"? Quien sabe....).
Art

When on carpet, spikes help the steadiness of the box to not move front and back when the woofer is pulsating, which is always. Never worked for me on carpet without spikes of some kind.

I have wood floors and borrowed some Paramount Zeeba speaker couplers for my Lansche No. 5 speakers. The improvement was astounding. I am definitely going to buy a pair.

Greg