Well..........I am loving this preamp. Probably alot of people to disagree with me but it's way more responsive and dynamic than the Powerball IME. I had the PB for about a month and could not gel with it. Way too tight and it seemed like was on 10 kill with no give. It did sound good just could not "dig in". The feel was not there for me. Which was strange because I have owned a PB, Fireball, Ironball and consider myself a big ENGL fan. I did not like the 6505 either so there is that with me as well. Perhaps it's just my odd taste....if it is odd? The 3 modules I now have SLO, Uberschall, Savage kinda have the tight brutal metal thing locked down for me. All are awesome but the Savage is a \Beast/!!