Oh God that was 3 years ago, I'm lucky to remember my own name form 3 days ago. I am an audiophile not an audio installer, so everything I did was on the fly and admittedly I should have documented my work.
IMHO the difference between bi-amp and standard wiring is negligible, but the quality...
I installed my sound system 3 yrs ago. 3 amps, the same speakers as the OP and a tailgate mounted 12 inch sub. I never messed with any settings whatsoever and it sounds phenomenal.
6x Hertz speakers (Cento Line)
Kicker 200.4 amp for 4 Front speakers
Kicker 200.4 amp for 2 Rear speakers
Kicker...
Besides my Sub, I also have Hertz speakers thru out. Its my first experience with Hertz and I gotta say I friggin' LOVE 'EM. True quality speakers at a reasonable price.
have you looked at the mods our friend @2door has done? (he had a hard top)
https://www.bronco6g.com/forum/threads/now-available-voyager-fastback-soft-tops-in-tan-for-2-4-door-broncos.102394/post-2388306
Soooooo you're the first I know of that had an EOM soft top before switching .... tell us the about the difference in sound at different speeds please. Is it noticeable? the same? how is it down the highway at over 70? etc.
All I gotta say is WOW ..... Havoc should seriously take note of your mods and incorporate them.
1. How did you attach the Velcro strips? most Velcro I've seen are sewn on.
2. How did you attach the the wedge foam for the side windows?
3. Can you post a link for the large sheet of neoprene...