Get an active capable HU or amp and run these. You won't be disappointed, they sound absolutely amazing in my car. I'm running 150w to each mid.. It's loud enough to keep up with a 3-4k substage and as I said, sounds amazing.
I'm personally running a CZ702 head unit and PPI 900.4 amp on them. Right now the mids have so much excursion that they're hitting the inside of the door panel on notes around 30-60hz.. After I fix that issue I'm going to have them crossed at around a 50hz HPF and 2k LPF. The tweeters are on a 2.5k HPF.
Silver Flute 6.5s
Vifa XT25 Ring Radiator Tweeter