Ive took apart plenty of amps. Im not a tech, but ive opened up a lot of amps and I've never seen color coded caps like these. Color coded resistors are everywhere but color coded caps? Maybe I Just dont recall offhand.
http://i111.photobucket.com/albums/n...g1/jerr498.jpg
And heres a website that gives a table for color coded Cap. values;
http://www.csgnetwork.com/capcccalc.html