This is the first, very crude mock-up of how my full range dipole design transducer might and probably will look. First measure is in cm, the other is in inches. All 16 of the drivers and amps are on their way. Full vibration cancelling in the sub box. No rocking the neighbors or resonances in the upper baffle. Theoretical maximum spl of 100 db - ish. Will build it and measure it. I'll power it with 16 D-class amps. Just how I roll. I think that for a full 20-20k dipole/quasi dipole speaker, this is very slim. Even for a regular speaker, this is small. It should be as powerful or even more so than the lx521, possibly with better dipole behaviour. I say all this fully aware that this is my first design, I am nowhere near the genius that is SL, and I sound stupid to myself saying it. But that's what calculations suggest. We'll see. In any case, I do own a pair of lx521, so I can compare. For added WAF, the whole thing could easily be made into a black slim monolith with acoustically transparent black screen.