I have now planned to join Db-Drags a few times next year. All this only for fun (and only with Media Markt and Co.), because I don’t have the right car (E36 Coupe) or money to run the whole business professionally. However, I would also like to have over 140db from the beginning Even if this is probably not so easy with the Coupe, but that’s what I planned. My system looks like:http://img445.imageshack.us/img445/484848/bass29jn.jpg So she spie I lock the transitions to the right and left of the box, so that the woofers only play in the interior. In the trunk I have the Eton 5402 and ne Maxxima (my only battery!, front is not included). Wiring is 50mm2 and between power stage and battery are max. 40cm cable path. Mass is also attached to the battery. Are there any other tricks that I have to take into account to get out a few db? I want my cap to noc h hang out and I also want to look for the vehicle reso and tune the box on it, but otherwise? And in which class will I probably start? Actually only the door is insulated, and that is only thin. Thank you, Diddy