Not to unnecessarily stir up the "why no DSP?"-question that appears to have been aimed your way already as an option with your system, but have you - in the analogue domain with an electronic crossover - experimented with an outboard active configuration at some point?
no, i have not done dsp in my 2 channel room. years ago i decided instead to fix the room; building a room without limits. then tune it to work with ultimate speakers. which over the last 20 years i have done.
when you write about dsp, replacing passive crossovers, i don’t think you imagine passive crossovers that are inside the top level speakers. what that looks like, or sounds like. and when you write about driving each separate driver with it’s own amp and dsp crossover, you forget what that means in terms of choices of amplification. my darTZeel 468 mono blocks are crazy spendy and the best amps i have heard......how is that going to fit (physically and $$$) into active crossovers for each driver? the answer is that is does not fit at all. i would have to settle for less capable amplification. a compromise.
reality is that dsp does make a great deal of sense doing particular things. fixing rooms, powering more modestly priced gear, enabling DIY’s to build interesting projects. integrating subwoofers. doing multichannel such as Dolby Atmos.
i have a never opened box unused XILICA XP-2040 upstairs in my storage attic that i bought 3 years ago intending to use it to integrate 3 subwoofers into my Home Theater. i get what dsp can do. turned out my 3 Funk Audio 18.0 subs came with their own dsp engines, so never needed the XILICA. so i’m not anti dsp.