I have CS5i's and recapped the crossovers last year and made a MAJOR improvement to the driveability by going active on the subs. As part of the recap I drew out the huge crossovers and found that the 2 subs are done as augmentation woofers to 60hz where the 8" center woofer covers sub to 400. Basically all 3 are run in parallel at sub frequencies. There was only a single coil on the subs and it was super easy to wire them to a new binding post. I was able to single amp or biamp and the improvement is stunning. It also opened up them to using many other amps that did not need to cope with the 2 ohm bass load. I used an ICE amp on the subs and my ML 333 on the rest. SUPER dynamic now.
