rj@sfrr- I am a little curious if you have done a side by side of the ta-30 and the tad-60. I have quite enjoyed the ta-30 and am aware of it's strength and limitations, I just received the tad 150 and have yet to break it in for evaluation, but what I find interesting is how 60 watts can be achieved from the tad-60 el34 in an AB config without stressing the output tubes and going nova on a regular basis. Please tell us your experience here?