Hey TalkBass, I have posted a few times here looking for help and I am still learning a lot about audio equipment. I have built a custom 2x12 bass cabinet using these speakers http://www.usspeaker.com/beyma 12wr400-1.htm and this for the cab itself Bill Fitzmaurice Simplexx 212 DIY Flat Pack Keyboard-Bass Guitar Speaker Kit and I have been researching what head I need to properly power it. I was looking at this GK MB-Fusion 800 Gallien-Krueger MB Fusion 800 800-Watt Ultra Light Hybrid Micro Bass Head and before I jumped the gun on it I wanted to get some of your opinions on whether this is a good choice or not and if there are better heads for my setup. I plan on playing mostly classic rock and plan on gigging with it in the future. Thanks!!!