The crossovers on these D-9s left them sounding quite harsh. With distortion coming from the woofer and very muddy sounding midrange, the tweeters were the only thing that sounded as they should. I go through pretty much step by step on the upgrades I did to the crossovers. Replacing old caps and even new inductors along with all new wire for these now fully restored Cerwin Vega D-9s.