I use ATC SCM19's with 2 subs and am also very pleased with the results.
If you want speakers that disappear these do it well.
They like a lot of power and your amp should drive them well.
They are very transparent to source. I have upgraded components to feed them better signal and have been sweetly rewarded.
If in your budget the "professional" SCM20PSL's have better tweeters. The tweeters in the "entry series" SCM19's are great, they just roll off a little early. I have Townshend Supertweeters on top of mine to great effect.
They integrate well with subwoofers since they are a sealed box design and the bass rolls off smooth and gradual.
Endgame speaker for me. (Granted with subs and supertweeters.)