I am looking to purchase a new Double bass rig. I have been using a GK150, and like it. But, I am looking for a Amp/Combo to take on my louder gigs. I have tried the Acoustic Image combo, but I didn't like it. In order to get close to the sound I wanted, I had to roll off all of the high end. I would like to find an amp that gives me a strong bass response, as well as clarity. I do own an Ampeg Portabass 12" cabinet, so, if you have any head suggestions, that would be great. I am looking to spend about $700.00. Thanks!!!!!!