I also a victim of infinity. I got infinity kappa's all around my 99'. They sound great for vocal but they can't produce that strong kick drum sound. By the time I get some decent midbass, the tweeter is already killing my ear. Does anyone know how to get more low's out of the door speakers? Would applying sound deadner or making custom speaker enclosure help? Or should I just give those kappa to my little brother and get a new brand?

 

You can bring out the bass and mid bass from your fronts. But it's really not going to give you that midbass I think your looking for with those infinities. What you want to do is seal the outer panel of the door with deadening. There are several holes and gaps that need to be filled. Once you have that panel sealed up, you will ecentially have the speakers in a large enclosure. Macleod correct me if I'm wrong but I belive that is going to help more with the lows than mid bass.