Okay, so heres the deal. I'm currently looking at buying a new head since my Sunn 1200s died on me. In one corner I have a Genz Benz GBE 1200 that I found on ebay. In the other corner I have an Ampeg SVT-4 Pro on craiglist. Both are basically brand new, and both are being sold super cheap at around 600 bucks. I'm in need of super growly tone and a lot of midrange punch. Whichever amp I decide to get will be going through an Ampeg 8x10 Classic cab. For reference, this is about dead on the tone I'm looking for, I play with a pick: Suggestions?