Hey everybody! I need a bi-amp

[hear's the bass]

Hey, I'm a gigging bassist in Austin and I'm working with an Ampeg Isovent SVT50 Pro cab powered by an SWR 550x. From what I gather, a bi-amping system would seem to bring out the most in this cab. As is, I feel it's slightly underpowered, even though I love the 550's ripping tone. I don't feel either component is being done justice in the current setup, but I am committed to the Isovent (only 243 made!!!). Any thoughts/expertise? Thanks!http://www.talkbass.com/forum/images/smilies/help.gif