I went from a Premier 3 to a Premier 14 so I can't speak directly to the improvement you'll experience. But you will sure gain a lot in convenience alone (I'd never do without a remote again), and the 14 is a wonderful-sounding linestage with all kinds of inputs and outputs. At the going rate for used 14s these days, I think it's a no-brainer. Good luck, Dave
PS Replacement tubes (the 14 uses 4 6GK5s) are cheap and good if you stay away -- and I would -- from the Mullards and Sylvanias and stick with GEs. Both the Mullards and Sylvanians have flamed out pretty quick in my 14, which I've had since l996.