Just a follow up to Ben's post about updating the circuit on the single input Mini Plex. The gain mods and 500pF on board cap change all sounded great. I kept going back and forth on the bright cap though. I thought the 500pF bright cap was too bright and the amp was ok without it, but for some guitars I still wanted the amp a little brighter. I ended up going with the typical Fender bright cap 120pF with a switch. Luckily Ben's chassis has a number of punch outs for extra switches so I just had to drill a small hole in the plexi panel. I used the exisiting punch out beside the pilot lamp. I stuck on a label maker label for now but will have the panel properly etched later. Now I am completely happy with the amp! With a flick of the switch I can get a little more brightness when necessary...I guess now I have to call it a Mini Fender Plex? This simple mod is shown below for anyone else who may be interested in adding this to their amp.