To tell you the truth, I've never heard ANYTHING about the Audiobahn amps, good or bad. I suppose that's a negative at any rate. I agree w/ Rangerman, go with the JBL.
Go for the JBL BP1200.1 I did research on that... It's a good amp... and a affordable price too. It's going for $297.80 at http://www.broadwaycomputer.com