This is a very informative forum and the post on the "ThunderFunk TF420 vs the AG500" is the post that I was looking for. I have been interested in the Aguilar DB750 for some time now, and was planning on buying one during 2005. I have always loved the "tube sound" hence my decision to get the DB750, besides I wanted to try out a really high-end head before I pass on. Currently, I am playing an Ampeg SVT 3 Pro through an Aguilar GS112 and I really like the sound. I recently started playing with a three piece group at a cafe. We do really old songs with a bluegrass/folk type flavor. Lots of tunes by Tony Rice, Jerry Garcia, traditional bluegrass, singer/songwriter type stuff etc.... We play relatively low volume due to the atmosphere and acoustics. However I still play other types of music and set in with different types of groups. My last group was a three piece blues/jam (Gov't Mule, Allmans, SRV, Derek Trucks) band. I played the SVT through a 4x12. Now my question: The AG500 really peaked my interest. Imagine a light Aguilar head to go with my GS112 with tube tone. Could it be? Then I found this forum, and started reading about the AG500 and ThunderFunk. After years of playing through Ampeg and really old Fender Bassman heads could I make the transition to the AG500 or ThunderFunk. I do like the SVT sound and can get what I want through either of the three cabs that I have. But I gotta have one of these solid state heads! In fact, my interest in the DB750 has passed, I love the idea of a lightweight head with no tubes to worry about. The question is: Which one? I plan on purchasing another GS112 to go with the one I currently have. So, if you will, please offer some input as to which head you think (I understand these will be personal opinions) based on the fact that I really like my SVT 3 and will be playing through 2 GS112 cabs, and a couple of Fender American Standard Jazz basses and a Precision w/Diaddiaro roundwounds. I try to go a clean (piano type) sound with a warm (Double bass) type feel, if that makes any sense. This info may help, I aquired a Peavey Firebass (I know it is low-end, I couldn't beat the price) years ago as a backup head. The only way I can get a satisfying sound out of it is to go through an ART Tube EQ. So, fire away and Thanks!!!!!