Audiophile speakers that get loud

@bundy --

What high-pass filter(s) have you been using? I’m using the Xilica XP-3060 in my own setup, and find it to be virtually transparent with my (passively filtered) mains high-passed.

So, maybe the Xilica could be the solution high-passing your C1’s between 80-100Hz (the XP-2040 would do and retails for ~$1,000), and while we’re at it add another JL Audio sub. 

A better more massive rack for your turntable.

Stuff the ports. :)

The excursion happens because below the port, the woofers have no resistance at all.

Stuff them. This will raise the natural -3dB point up a few Hz, but greatly increase the dynamic range they can play out before they hit max.

Compensate with new sub settings.

Loud and small don't go together, Sir. 

I’m trying the plugged port idea. It definitely changes the sound and the driver excursion. I think my ultimate answer though is a 3-way speaker that has a more prominent mid-range. Any suggestions?  I’m trying to stay under $6-7k.