I just placed this post because the PV-14L was not mentioned in any of the other posts. I really don't have much to say about it. I bought it new in 2001 and have been using it ever since. It is still on the original Mullard 8080 tubes and they sound as good as ever. Everything still works and I have had no problems with it.
I did replace those shiny silver control buttons with black ones I bought from C-J. Now it has the classic C-J champagne gold faceplate and black control knob or button color scheme that I prefer over gold and silver.
Other than that, I have been happy and have no intentions of buying another preamp. I have 5 spare sets of tubes, so I'm into the preamp for the long haul.