I have an Alpine SWR-12D4 subwoofer and an Alpine MRX-M110 amplifier and I wanna change my factory speakers. First I don't wanna spend on a second amp (they will be driven by the headunit only) and second, I would like to have very good mids and not too sharp/strident highs. I was looking at the Infinity 6032cf and the Polk Audio db651, but it can be anything else. I would like to have your suggestions. Thanks.