Someone is selling one of these bad boys for 150 bucks on craigslist. I've heard good things, but I've also heard that they need some serious wattage to get going. I've got a sunn beta head, which is only 100 watts ("only" 100--I know Sunn's are always louder than their wattage implies) at 4ohms. The Goliath is 8ohms. Think it will be enough to move it? Maybe run in parallel with a second 8 ohm cab for sound diversity?