mijostyn, although this could be debated by others here, my Lascalas, measure cleanly, to 75 hz, before any roll off begins, and this is at 100 db level. At lower db levels, they extend lower. I added extra bracing to the cabinets of the dog houses ( the woofer horns ), and did a few other mods, to clean up some weaknesses, of the original design. As far as size, Mahlman uses his huge horns in a warehouse environment, not a typical 16 x 22 living room. Not saying this is a bad thing, nor implying, they would not work in a typical environment ( for some, not me ), but my Lascalas are a " right size " for me. Enjoy ! MrD.