So I searched, didn't really find too much that fit my particular question, but I have been know to be a horrible search engine user so forgive me. What is overdrive? Well, I know what it is, it's an amp driven more than it "should" be (well back in the day). But what does it sound like? I've heard it described as warm and fat. (Motown Recordings) I've heard it described as face melting (SVT fridges) I've also heard it called grind (GK amps) Are these all just different types of overdrive (for instance, in the guitar world there is a "Fender" overdrive, a "Marshall" overdrive, and a "Mesa" overdrive) or am I just thinking certain things are overdrive when they are in fact something else? I ask because I was discussing with a friend how I overdrive my GK 700RB (mk-I) by grinding out with my volume and boost turned up, and the friend looked at me when I played and said "doesn't sound like overdrive to me". Just confused haha.