Please provide your opinions and suggestions regarding my in-process monitoring set up. I have collected 4) 4435's, 2) 4430's, and 6) 4425's. The room is private, brand spankin' new and is designed 5.1 so it's rather large (14400 cu ft) and built to specific ratios, absorption and diffusion coefficients. Speakers are flush mounted and isolated, RFZ and all that good stuff. The 4435's are front L,R and rear L,R. The 4430's were to be the center and maybe the .1 (if used) but volume vs. gain does not match the 4435's well. I'm looking for a 4435 I guess. A bridged Crown KI amp powers each speaker. The 4425's surround an Electronic drum kit so the drummer can hear and "feel" the kit - more like an acoustic set-up. Looks like he just got some 4430's for kick and snare. Problems....since I've had most of these speakers around for a while, some of the foam surrounds are less than perfect, but most are 'intact'. An "oop's at the board" blew a horn, a woofer or two and knocked my butt on the floor. Another 15 'cracks' sometimes. Swapping these out, I found a damaged crossover and horn. It sounded like something off a football field, and it only worked when the HF attn. was at an extreme (forget whether max or min). Sounded better with another known good horn, but not right. As I am not an expert on speakers and repairs, I lucked out when a friend told me about this forum. Obviously you folks know of availability, alternatives, solutions etc. I need a recommendation of someplace to send all of my components to for repair and/or general health ck. I assume all of the woofers have been reconed or refoamed before. These speakers are going to get a real workout in this facility, and past experience has shown that they are quite durable until abused by guys like me. Geesh....the crossover is NA from JBL, one recone now for both 2234H and 2235H, JBL recone/foam or aftermarket? What diaphram? These things need to be balanced L to R too. Again, please offer suggestions that you think will help me out (besides some good limiters!) If you got this far, Thanks!