Have a few questions again… next is a picture of my planned system… Since I build up everything active (so every single speaker a channel) this will be a material battle… and I would like to know if you are also active. ach and a few more questions: – Is it useful to take 1 sub and 4 kickers? – Is it better to operate the kickers together at 1 ohm or rather 2 together at 2 ohms? – can the kickers in the rear shelf work open or is a kicker working together at 1 ohm? Homes better? – can I also operate tweeters parralel so at 2 ohms – weche size should have a kicker so that it sounds cracky and doesn’t get too big? – I have an idea and would like to hear what you say about it… Since I have built windsurfing and already a few boards I thought I would build a rear shelf in the same way so styrofoam core with plywood insert and fiberglass coat…has anyone built this before?