Lots of good discussion. You might read the great responses recently regarding my recent purchase and experience with the ATC SCM 40 active floor standers. I believe it covers the subject matter well.
https://forum.audiogon.com/discussions/review-atc-scm-40-a-floorstanders-finally?highlight=atc%2Bscm...
https://forum.audiogon.com/discussions/review-atc-scm-40-a-floorstanders-finally?highlight=atc%2Bscm...