The mids will be running active from about 80 hz to 3500 hz in a 2 way, of course that will be adjusted a dozen times probably as I play around with the crossovers as I listen to it. i was a little concerned about the sensitivity, but I am having An issue finding a 6.5 that will fit in my doors. I am using an MDF adapter ring to replace the 6x9s that came stock, and they are a tight fit. I have just barely under 6.5 inches of room in the door panel, and most 6.5s have an outer dimension of 6.5 or over. These morels are 6.3 on the outer side, letting me fit them in nearly perfectly. Trying to avoid 5.25 mids honestly. The whole system will be a pioneer deh-prs80, a 4 channel running the mids and tweeters. The sub is a Dayton ultimax 8 in a bandpass box with a homemade amplifier built right into the box itself. I have already built the box and have a nice flat response from 30-85hz, but the amplifier I’m building is having some power supply issues I am working out,.....hopefully. If not, I have a timpano amplifier that is suitable for the sub.