First I want to say I'm envious my dad and I have both wanted a Princeton reverb for a VERY long time. They are true gems.
That said I really like my Dr. Z 10. I'm not sure of the price but it sounds very thick and rich clean or distorted. I'm not the biggest fan of speaker breakup and if this one does it it is so smooth I can't tell! Here is info taken right off the website.
I have developed my own 10 inch speaker, it will be incorporated in the new 2X10 Ghia combo, the Z-28 4X10, the 4X10 open back cab, and the MAZ -38 and Jr. 2X10 reverb combo's. I utilized a process that I learned from my friend Ted Weber at Weber VST: that is incorporate the response of a sample speaker, them tweak the voice coil, mag circuit, and dust cap to achieve a optimum design. On the Z 10 inch speaker, I utilize an English made cone and voice coil, along with a basket and magnet from Eminence, and assemble them in house. I select a different dust cap depending on the amp that I install them in. There has been a lot of time in the development of this speaker, but I 'm very happy with the results, it gives me control of the speakers tone, and no delays for speaker deliveries.
Lew likes one of the weber 10's and I have started to become a weber fan of late.
Luke