What do you guys suggest?
Give yourself a month with the new gear to become familiar with it and get things sorted out!
You just made some significant changes to two major components (congratulations!) Now I think you'll find that taking time to work on speaker positioning and room layout will be enlightening.
So try different arrangements and listen, listen, listen. Try and get the new speakers placed so the sound is as good as it can be and then try things with the sub and without it. A lot of what comes from an upgrade is subtle, but significant - things like hearing the way a cymbal strike decays or noticing the layering of sound in a recording - and it might take time to sort out what the new gear is doing.
Have fun!
