I read on a forum, probably Home Recording that there was a guy did wonders upgrading Lexicon LPX15 effects units. I visited his site and he had a huge list of gear he can improve. I didn't bookmark it though, duh... Anyone know who I was reading about, can provide a link?
I remember reading AKG Solidtube on his list. I know he is the USA and it wouldn't be cost effective to ship stuff to and from him but I did want to contact him to see if he could give me some advice for a DIY upgrade.