Jeff Rowland Model 2. Listened to it in the store. Sounded much better than the Mac amp I currently had. Brought it home, and it sounded much worse. That was when I learned you needed to match the equipment to the room. I still remember my wife telling me to get the old amp back in the system.
Your single most significant purchase mistake?
Your most significant regret for having bought? Big expectations and an even bigger letdown? The one you kicked yourself the hardest for ever having bight