I’m about to push the button to get 2 SVS 3000 micros to add to ATC SCM40s.

You can just turn down the volume of the subs a bit on TV / movie nights... no need to rattle the dinnerware... and still get that bit of extra kick.  

Most people turn their subs up too high so they can "hear" them, but the best sub tuning is "you don't even know it's there, until you turn it off."  

Use restraint, and maybe a bit of psychology by not even pointing them out to your wife... discreet is good.

Well, it's done and that works.  I would have moved to the ATC SCM 49A speakers for I believe a better outcome.   I ran the active for some years and they are shockingly good and provide better bass control.  Enjoy the outcome.

I already had an amp i liked when i bought my speakers used for only $3,300.

A few months ago I picked up two SVS SB2000 pros.  Integration was pretty easy. I’m really pleased with the performance. 

When you used the SVS app to set them up, does it adjust both of them together or do you have to do them separately and get them to match?