Im not 100% sure if i want to do this yet. I like my head and all, but sometimes it does weird stuff to me. I love my ampeg so i was thinking maybe going with a power amp and a Svp Pro. Trade in my head for a power amp and the preamp. I play in a melodic hardcore style band and i require that growl. What do you think? I do have a 9 space rack. Just in case you wondered. Thank for any replies.