Going to experiment with an open back speaker cabinet and a few different speakers. OK..not an FRFR but you get the idea. I have a Quliter 202 but that will color the sound and would like to try out some 'head only' digital models running into a real guitar speaker with an open back cab. Will be running guitar line in signal levels (as opposed to consumer audio). Any good experiences with something inexpensive just to dabble with?