Trade off? New vs used


Tough choices,  would love to get a quality $30k preamp for a used price, eg Ayre Kx-r 20.

so do I get a new Audio Research ref 6se for $17k or get a comparably priced $28k preamp used for about same price?
emergingsoul
The safest and best thing to do is to audition, which reputable dealers will encourage. Whatever you are considering has to work well in the context of your system, room, and musical preferences. Emergingsoul, where do you live?
You should talk with John Rutan at Audio Connection in Verona, he has both the ARC and the Ayre.