[quote name='subaudio' post='285557' date='Sep 17 2008, 08:44 AM']and need to get as much volume as I can[/quote]
Have you considered a magnetic pickup?
If volume's the most important, how about a cleanish 4x10?
I use a Markbass 4x10 with the same head as you. Not exactly dripping with acoustic beauty, but punchy and loud.