By all means take your PL. Also, Try and determine how many hours he has on his 4B3 in the shop. Bryston puts 100 on them before they leave. I purchased my 4B3 with 50 hours on it as a demo unit from a dealer here in NC. It seemed to fully break in after I put another 100 on it. Hearing it with your pre before you start spending more hard earned money is a sensible thing to do. Maybe even bring a couple of sets of tubes to roll?
KenRad VT231(6SN7) & Melz 1578s did the trick for me. Please post your findings after...
KenRad VT231(6SN7) & Melz 1578s did the trick for me. Please post your findings after...