I'm playing a PRS Custom 22 into a DSL100. Here's how I have it (it might look crazy, but sounds good.) : Presence: 5 Treble: 1ish Middle: 2ish Bass: 7-8ish Volume: 7-8ish Gain: 2, or up to 2.5ish for metal. Deep: On Tone Shift: Off Ultra Gain: Off Just for reference, I'm aiming for something like this: Paramore - Decode - Video Dailymotion It sounds great, don't get me wrong.. But if I turn up the middle or treble at all, it sounds like trash. I feel like the middle knob controls somewhere around 3000hz. And I feel like the bass knob controls the low mid range a bit as well. Maybe up to 600hz. No control in-between, which would be very useful. Is there something wrong with the amp, or is this to be expected with my set up? Also, my gain stays way low on the distorted channel. It just makes me question why this is.. And if my gain is that low, even when I play metal... What on earth is the Ultra Gain button for?