I need some good grind out of my sansamp. I've been trying to get that old school tube sound out of it, but have failed miserably(i just get fuzz). It musn't be TOO agressive. I'm using my Spector. I normally have the blend on full, treble flat, slight bass boost, and the drive flat(otherwise i get this fuzz). The presence is normally at 2oclock. I'm using this as a pre amp, btw.