I don’t have the subwoofer yet, and I choose a subwoofer with as little depth as possible. Now to the actual question (see picture): Mostly the subwoofer housings look like in variant 1, but this minimizes the loading depth imens. Therefore my idea, variant 2. I want to build a housing with as little depth as possible, and pull this up as shown in the picture up to the seat can, and use the full width. (In a single sub correspondingly “same”. a. How close can I go with the magnet of the sub to the rear wall of the case? b. Is it possible to expect a different (bader) sound at the same volume than with variant 1? c. Does the volume have to be calculated differently with variant 2? d. Would it be meaningful, as in the picture with d. marks this relatively tip corner “to straighten, and, then the bass reflex tube must be pulled further? e. The following question arises with me: What is the decision for the bass reflex tube? d? Anyhow the length, but could one also lay out the raflex tube, as shown in the picture at the bottom right, which would then correspond to “d.”? Or is this protruding into the housing (as shown at the bottom left an essential part of the bassreflex? f. What diameter should bassreflex tubes have at least? And, would the installation direction be like in variant 2 ok? g. Are there recommendable subwoofers, with low installation depth? Which? Questions about questions, I hope you One or the other can answer me best all.