This question has always confused me in reference to the power rating of the speakers needed for the particular amplifier. I was told early on that you should go with speakers equal to twice the rating of the amp output, but that seems like a very generic answer. I am teasing myself over testing out different speakers for my recent purchase ('79 Twin) which is rated at 135 watts. The speakers in there now are rated for like 300 watts, but what options do I really have here? I am a big fan of WGS speakers (ET-65 and 12C), but they would not measure up on paper to handling this amp. Obviously, I am not going to dime this amp in my lifetime unless I am looking to attract a rescue helicopter, so how much power handling would I really need to handle to reach say mid-dial on the volume knob?