I bought my first used speakers on Audiogon after always buying new. I never expected to buy without auditioning the speakers first. It was a fairly expensive purchase. It did not work out. While the speakers are I'm sure excellent, they weren't in my setup. Synergy of amp and speakers is critical and sometimes elusive. I did my research extensively, emailed owners etc. I had to sell them on Audiogon and take a loss. Now I've got new speakers on the way. Bought the top of the line from a speaker I owned before. I know what to expect from these speakers. If you don't mind the risk and are willing to face re-sale on Audiogon, then buy without listening. But with big speakers of 150 lbs or more, I doubt I'd do it again.