I am already the owner of 2 S18b-d cabs that I love dearly. Recently, I was given 2 more cabs. One is a S15 x-d. The 1/4" jacks are fine, but the neutriks appear doa. I was using a GK MB500 head. Cab seems to work well so far, other than the jacks. The other is a D10 b-d. Both speakers are shredded and it is missing the grille. What a coincidence? The BE speaker are very pricey, and I don't really need the cab, so I'm considering a cheaper alternative. Has anyone done this already, and what speakers will do the cab justice? Any internal crossover concerns, or incompatabilty? I'm pretty illiterate on things electrical, but have a solid grasp of ohms. Thanks!