I have a Peavy classic 30 amp, and an Epiphone Les Paul Classic. I don`t know what kind of effects pedal I need to get the real bluesey sound without cranking my amp too loud. The Guitar and amp are hot enough., but I need that sustain and more dirty. also a way to clip the sound, if you know what I mean, I`m new to this and don`t have an idea. Can anyone make suggestions?