I would buy new 1.6's over used 3.5's. At least you know what you have plus a warranty.
Which Magnepans 3.5 or 1.6?
I am looking to purchase a set of Magnepans. My budget is about $1800. Would I be better off with a new set of 1.6QRs or a used set of 3.5s? I am using a CAT SL-1 mk 2 pre, Resolution Audio Opus 21 cdp, and for now an old Bryston 4B amp. My next step will be to replace the amp.