I saw a post a month ago from some one who has one of these and did a few up-grades. IE: New Pot, Op-Amps Etc. I need to know where he got the ALPS Pot to upgrade. I am new here and need help on this as I rested the 90lb sub on the edge of the C1500's volumn knob and broke the pot shaft in two. Arggggg! It still works fine just I cant change the setting unless I open up the chassis and turn the cog wheel which is the stepped part of the pot. I have been to Mousser etc. and they all send me to china!!!!Another Arrrrrg!!!! HELP!