I am looking at moving up from my Ampeg b100r to a head cab setup. I was thinking of a GK backline 600 or a GK 400RB4 with a Schroeder 1210 or 1212 cab. I play mostly 4 strings, clasic rock, and want a portable rig. I am interested in feedback from this site since I am an old geezer that has not kept up with the times. Any other recommended setups would be appreciated. Thanks!!