I have some questions regarding my project! Its based on 604-HPLN By the way I am a rookie. I am mounting them in 612 cabinet (I know its not perfect in terms of bass extension) but the size of my room combined with my family's sense of aesthetics must be taken into consideration. I have the original crossovers should I use them or replace them with werner jagusch (if... how do I buy from him?) or others please recommend? I have the dimensions of the cabinet but what about the dimensions of the plywood how thick and what about the front baffle is it supposed to be thicker? And does anybody have pictures or drawings of the inside bracing? inside cabling?...recomendations on terminals..should buy specific screws bolts and what size? ok enough with the questions thank you all Best /J