AnnihilatorAudio
CarAudio.com Recruit
If you want door rattling midbass, PWX is definitely your go to woofer. Here's mines with no sub and unsealed doors around 63hz low pass. It can reach down to 28hz as well if needed. You can throw 400 rms to each mid and they'll gobble it all up.
Bro my hertz midbass **** on all of the pro mids.
Cdt makes an HD 8" midbass that's badass for pretty cheap. The pro audio mids sound like **** compared to the car audio midbass