I have a 9 band EQ and 4 of the levels are broken. Where can i buy new one. Also where can i buy knob for a amp that are not chicken feet.

this company has 1690 types of sliding potentiometers. i am sure you can find a replacement there once you find out what size and specs you need. they also sell every type of knob you will ever need.

or you could try to reach customer service of the amp manufacturer for replacement parts.