I run Focal components all the way around in my truck. I have not heard another system as clean and clear as mine IMHO. It will have your ears ringing if you want it to. I run a four channel Alpine digital amp to the components (100 x 4) and I also have an extra set of Focal tweeters in the dash columns facing the windshield so they bounce back at you, super clean! So I'm running four 6.5's and 6 tweeters with two JL Audio 10" with another digital Apline pushing the woofers. I'm running the Alpine INA-W900 7" touch screen and Apline 6 disc DVD changer. Focal and Alpine blend beautifully together!