i wanna change out the speaker for my vibroverb, I'd like to get the JBL D130F, but am not sure what to look for when buying? any advice for someone who is a little green when it comes to these speakers? ie. what bearing does the fact that it has been re-coned have on tone/quailty. etc... also, does anyone know of somewhere reputable that i can get one from? any other suggestions for speakers given the difficulty of find a d130f...ev sro 15, weber???? Thanks heaps Luke.