Hi All; sorry for the delay. The woofer is a Dayton model no.DC160S-4 Nice heavy well built driver. The xover is the inductor, that I am not sure of the value, wired from the positive speaker input in series with a Solen 7.5 uf 400v cap connected on the other end with a 6ohm 1% wirewound resister mills mra 12 which then is wired to the positive of the tweeter. I will try to post a photo asap. Also I might be able to get the inductor value from old orders placed on Parts Express. Thanks for your patience. A lot of times these mods don't seem all that effective; or they just change the sound without really improving, but in this case it seems to work well. Cheers.