im not sure which one it is yet. the guy hasnt brought it in ,but im thinking its the more powerful one. this is the second time ive heard about this db-r guy i will check him out when i get the amp. so you guys in agreement that this is a good trade? cause i have not heard a memphis belle operate on anything in person and only fondly, and vaguely remember them from years ago. thanks folks for throwing out some info.