best used floorstanding speakers under 5k that has small footprint

step up to the 50.

@steve59  The 50s would be nice but they a a bit too large (mostly in depth) in my living room. Thanks for the suggestions though! Would love the mids of 50s if I am in a bigger house!

It’s hard to find speakers with mids similar to the ATCs except by going up the line.

What improvements are you hoping to get over the SCM40s? More bass for the same footprint? Probably unlikely without a bigger cabinet.

Things I’d look into are adding a good sub (or 2), upgrading the SCM40s to active, upgrading them to the v2 new tweeter (I’d email ATC to ask if both these are possible to retrofit from the v1s)

Also, what amp and sources are you using currently? Biamping or triamping might be another idea.

Just scouring the current listings of floorstanders in your budget on Audiogon right now and nothing jumped out to me as a real upgrade.

Thanks a lot for your response!  @motokokusanagi I don't have many complaints about scm40s except that it needs lots of power to drive. I want to go for a pair of used scm40 v2 or scm40a if good deals turns up. The scm50s are a bit large for my listening area. Thanks for the suggestions!

What size footprint are we talking here? Women's size 8?