while I adore Sunn, and own several, be aware that the Beta Bass doesn't have a ton of low end. It's GREAT if you're really mid focused, or are running a dual head set up and can cover the low end that way, but as a lone head I've always found them the disappointment of the Sunn line!
Pretty much this. I have to dime the bass on mine to get anything respectable out of it.
I wonder how much less I am going to pay the repair guy for the cap job. It's been almost 2 months now.