Good day all. I recently acquired a pair of 846B's from their original owner. The question I have is , if I were to want/need to get my crossover network reworked where could a guy go ? And is it true they can be fitted with Model 19 XO's ? Any help is greatly appreciated,

BoeingBrian

Dynaco MK III's
Dynaco PAS 3X
Project Debut III
HH Scott 330B
Altec Valencia