Most of my Diy speakers are more conventional 2 way designs. I don't have the area to do large speaker projects. I have recently done some 3 ways and larger 2 ways with high frequency horns. The complexity of crossover design is very challenging. Building crossovers and getting them inside...
I am a retired mining engineer that worked underground for almost 40 years. I built my first speakers when I was 16. I think it is fair to say that speaker design and passive crossover development is where my passion lies. I have had some nice speakers. Klipschorns, Heresys, Altec Model 19, JBL...