hy guys at first: I don’t have any idea about the audio krams :/ so here’s what I want: I would like to hear (metal, rock etc.) something louder with a clean sound. I have a PIONEER DEH-1400R now I thought it was enough first a few reasonable speakers in the doors in the front then I got to the Hertz HSK 165 and the BOA 2.16 (believe I’m called that) but brings this without the end stage ? apparently not :/ what do you take then for a final stage as example ? so pre in total I would find 300€m already quite a lot…but I have 0 idea what kind of “cost must” also fit these front systems just in ? always read of any mdf constructions and doorboards etc. I thought the 16.5 fits like the original – ? what do I do with the original tweeter in the a-board ? and what do I do with the old cables ? must yes thicker in or ? as you see I need some help somehow…. mfg, thomas