I found a 2003 Ampeg 4x12 bass cab on my local craigslist for $320! I've read about how heavy this thing is but holy crap, any Ampeg stand alone cab for $320 seems too good a deal to pass up. Has anyone played this cab? What are the drawbacks, other than the hundred or so pounds I'll have to lug around? I'll be using it with my Ashdown Mag 300 until I stumble upon a sweet tube head down the road.