I've just gotten a DB410 cab, which absolutely rocks! Though I think I am not getting the most out of it since I currently own a Hartke 3500 amp head. Given this I've been seriously thinking on getting a new amp. The first obvious choice was to go for an Aguilar DB750, but price will be an issue, plus I'm not sure I'll be getting a 2nd cab anytime soon. The 2nd choice was to go for an Aguilar AG500 amp. Any comments on this amp? What would you guys recommend? Thanks!