Hi Dane, With all your detail on your speaker choice TT’s and setup, I assume you’ve used an SPL meter to calibrate the speakers? If done already, - I’m sure Steve’s and MCH comments will help with what needs to be done.

If not you can get some really ‘flat’ sound out the system, until the speakers are calibrated. Which could contribute to the end result when combined with other needed adjustments such as enclosure or placement.