I am currently using a TC Electronic RH450 head with my 2x12 cab and 410 cab and liking it. I want to find a good used solid state or Hybrid amp either used or new a around 5-800 dollars. What would be a good choice. I kind of intrigued by the videos of the MarkBass Randy Jackson Tube amp but haven't gotten to play one. The problem is whatever i get will be buying without playing so I'm hoping to get some good recommendations from my fellow TB'ers.