speakers that are a little laid back in the mids

If you list what you have had in the past it would give some kind of reference. 

Looking at your system I’d highly suspect your Mac preamp as they are known to be midrange forward and lush sounding, and that’s been my experience with their gear as well.  Do a demo of the new Spatial Audio Raven or Aric Audio Motherload preamp and your world will likely be completely changed.  I know the Aerial 7B doesn’t sound like what you’re saying, which leads me strongly to your preamp being the culprit here. 

I would look to your room or components first. I also have heard great things about the Aric Audio preamp, but have yet to hear. You could try old stock tubes in your preamp but this is can be an expensive experiment and usually more of a nudge than a push.