Yeah, there are a lot of speakers I have enjoyed but very few enough to buy. Had mine at least 15 years now and still love em. Especially now with my Swarm subs, they will probably be with me forever.
It was many years ago but what I remember from installing mine it was the same crossover with some upgraded parts. Looking at the parts "mounted" with zip ties holding a few great big caps and a choke to a board of ordinary MDF was a bit underwhelming. It did sound better though.
These are really easy to get into. Lay the speaker down on one side. Remove the four big bolts in the bottom. The whole base comes right off in one piece. The crossover is just sitting there, strapped or screwed down I don't recall. With the base off its real easy to see.
Internally the wire looks pretty ordinary, except for being run in a loose braid, forget what they call that configuration. The speakers before these I replaced the internal wiring with some unterminated Synergistic Research wire Ted sent me.
If you can find Farnsworth, great. If not there is plenty of room for some significant upgrades. Easiest is swap out existing parts for better. Next would be to relocate the crossover out of the speaker cabinet to the floor nearby. This would make it super easy to try different caps. Then when you're done build a quality case for the crossovers with cones and everything for vibration control. Got to be way better than the way it was. Then mass load the base. Then re-wire it. If new from Ted is too pricey there's plenty of great used SR speaker cables out there.