That really depends on the x-over frequency, doesn't it? For a 3-way with vertical TM and horizontal W alignment, you'll want to have the woofer X-over as low as possible, so that the TM mostly dictates the directivity. The Emotiva uses 550 Hz, probably still too high to fully mitigate the effect. But that 3" woofer might not handle much lower either.You don't need to measure them. One look is enough to know that they will not work. A d'Appolito design on its side will always create a narrow horisontal dispersion.