i'm stuck on deciding which amps i want. its between the dc-5 and the .50 caliber. i tune drop b so i want a really dark but tight tone and a bright clean tone. kind of like chevelle or breaking benjamin. i really like the sound of the mark iv but thats out of my price range. so which on do you guys think would fit my needs more. oh and whats the difference between the .50 cal + and just the .50 cal.