The Synchrony Two is the immediate predecessor to PSBs current model, the Imagine T2. When they they were briefly sold simultaneously, the Sync Twos were $4,000 and the Imagines were $3,500. Having auditioned both, I really could not tell much difference at all.
Around that time in fact, I got a chance to ask Paul Barton (founder and head designer of PSB) what were the differences between the Sync 2 and the Imagine T2, other than cosmetics.
His answer: "NOT MUCH!!"
And there you have it. A pair of Imagine T2s will run you $2800 on A-Gon. But with this listing, you can score their sonic equal for less than half that. They come in their original packaging, from a pet- and tobacco-free home. We have kids, but were kept away. (I'll add that the speaker grills are perfect, and if you do have kids, the hard plastic grid underlying the fabric has probably 1/4" inch holes, i.e. smaller than any kid's fingers, actually not a bad choice if you had a prying toddler.)
Regarding my A-Gon history, everything up to now has been a purchase from a dealer/storefront, whom I contacted directly after finding the listing, so Audiogon has led me to many purchases, but has never been transactional intermediary. My self-respect is worth than these speakers, I make my living by my reputation, and you will be treated fairly.
Each speaker (with the box I believe) is about 55 lbs.