Hi again, folks! The 3a project is humming along nicely and working with them caused me to revisit the 2 pair of 4x's that I've had stashed for another day. Today is that day. I remember doing a little precursory research a couple years ago, but didn't get too in depth with my search. This pair is a great restoration candidate, completely original and complete. The drivers all work, I will measure everything as I do the restoration. SN are; FX 76489 and FX 85141. I got them from the or