I'm having a problem. I'm currently looking at upgrading my door speakers. I have an Alpine TypeR 6.5 component set and I'm looking at MB Quart RUA 216 or Diamond Audio D66. I also have two Alpine TypeR 10's. I'm looking for an opinion on two things. 1. Which component set is better? I listen to rock, and 2. I need an amp to push everything. I was thinking of a 4 channel. 1 & 2 at 4 ohms to push the components and 3 & 4 brigded at 2ohms to push the 10's. Any suggestions?