Yeah that is the case with the SS3Pros. I've been looking at both options, wasn't sure if there were any other factors. Definitely adds a different look from stock - keep us posted on a DD response!
I don't have my Bronco yet, so no personal experience as it relates to the install/sound/etc. From a car audio and cost perspective, I'd go with one (better) 12" sub and bridge your amp.
https://www.crutchfield.com/S-GNklp6BuPDS/learn/how-to-bridge-an-amp.html
See page 20 of this thread
Post in thread '📬 2023 Bronco production scheduled build emails now going out! Gets yours yet?' https://www.bronco6g.com/forum/threads/%F0%9F%93%AC-2023-bronco-production-scheduled-build-emails-now-going-out-gets-yours-yet.55865/post-1627594