The 17 is a very different preamp than the PV14. Better components different and better topography, etc. The 17LS2 is neutral, quiet and specific. The strength of the 14 is its exceptional midrange competencies. Its mid-bass is good but not excellent and the top is slightly soft. But look at the price differnece between the two, so these points of differential should be expected and do exist in reality. Yet, the 14 betters many other preamps in the same and higher price range. Yes, the 17 would be a positive step up, and a 16LS2 is even better if you want to go that route.
I must also agree with Cberry, you may want to first look at a different power amp. See if you can borrow one of the CJs and then make some informed decisions.
I must also agree with Cberry, you may want to first look at a different power amp. See if you can borrow one of the CJs and then make some informed decisions.