Hi all, I haven't posted here in quite awhile, so please forgive me. Today I bought a pair of empty cabinets, marked 1202A, which hold an 811-B horn & a 15" LF driver. I'd love to learn about their history, proper component load, & especially the crossovers. The crossovers are there, & look original, but one has been repaired at some point, & has wire-nuts on it. I probably won't be finding the original LF drivers any time soon, but have a couple good substitutions, and also have 811-Bs with 808-8A drivers, as well as another pair with BMS drivers. So my main interest was the cabs, but it would be an added bonus if the crossovers are good & worth saving. Thanks in advance. BTW, as you'll see in the pics, these say Musical Sound Products, which might help. Oh yeah, the actual serial #s are 1229 & 1269, not sure what the stamped in ink #s refer to.