Just venting a little bit. Picked up a pair of Quadral Argent 80's. When picking them up, the seller assured me they were in good nick. No chance to listen, but they looked good. Damn, real monsters, bigger (and way heavier) than I anticipated. Anyway, took them home, hauled them up the stairs (muscles are still aching) and finally had the chance to take a good look. Apart from missing one of the bi-wiring links nothing too bad. Then pulled of the grilles and... Hmmmm... one of the tweeters looked suspicious. So I took a screwdriver and found... Somebody replaced the original tweeter with a cheap piezotweeter, glued to the original frontplate. The metal dome was glued to the inside of the protectionplate, so at a first glance everything looked OK. Of course the seller didn't knew anything about it... So the lesson is: always, ALWAYS check the goods before parting with your money.