I’m sorry, but I have to ask.....why?
Why would you want to rewire the inside of your speakers if you are not happy with the sound?
Can we just assume that you have spent countless hours already experimenting with speaker placement and toe-in? As well as addressing any deficiencies in the room?
Personally, if I have spent time/money on speaker placement and room acoustics, I may experiment with some external cables and/or equipment to try and resolve issues, but I would not modify the speakers themselves. I would just sell them and buy speakers that sound better in my room.
Tekton Pendragons are pretty efficient. Have you considered using a different amp to drive them?
Maybe a nice tube amp instead of the Class D amps listed on your system page?
I also feel that you are looking to move in opposite directions at the same time. You say:
I am looking for a warmer more revealing sound across the board.
From my experiences, as resolution increases, warmth decreases, and vice versa. Warmer sound tends to be less revealing sound.