Hello Robie, I saw a post of yours regarding the Tube Cube 7. What tubes do you recommend for it versus the stock tubes which are now: Shuguang EL84 2pcs & 12AX7B 1pc? I just ordered the amp. Also, do you know if you can use KT77's instead of the EL84's? (I don't see why not) Thanks in advance for sharing your thoughts, Fred