Leaderboard

BMW is using them as midbasses, you might as well too. Personally I'd pull fresh wires so you can easily go back to stock but that frees up the range on the mids to not need midbass which would be helpful. Would allow you to focus on a 4 that has a killer midrange but not worry about trying to reproduce midbass. Would need an 6+1 channel processor and amplification. The Tang in the pic above ought to be able to get down around 200hz in the doors. Mark audio makes a great 4 as well. Lots of other options that I haven't listened to as well. A set of those, a processor and amplification and you would have a three way that should have reasonable midbass and a killer midrange. There are some tuning and staging fun with the underseat, but if you don't want to cut up your doors this is probably the easiest solution.