Hi Simon or John, I’m planning on mounting 2 x SPB15’s in my M5 with the magnets facing the seats. I do not have folding seats, but plan to keep the armrest down with some grill cloth over it.
1. How much sheet metal cutting do I need to do to allot enough air to escape into the cabin? The seats themselves are just the usual foam and leather…not sure how much air will pass through that. Is it important where the holes are? Should there be circles cut out centered where the magnets will be?
2. SInce the 15’s barely fit back there, the wood that I’m mounting them to will be pretty much holes and not much wood. Given that’s the case, should I reenforce with metal/layer some birch instead of MDF/or other things of that nature?
3. Lastly, any advantage to running stereo? Obviously not for imaging, but for phase issues? Thanks!!!