I am offering the proceeds from this sale to support Gary Dodd. This is a 12" high quality subwoofer driver that can work very well in a small sealed box (1.5 cu ft with 4 or 5 db boost at 30hz) or equally well in a larger (2.5 cu ft) vented box without eq. This is a second version (believe they eventually had 3) with a stamped steel frame, Dual Voice Coils (each rated at 8 ohms), a bumped back plate and vented pole piece, a very stiff doped paper cone, and plenty of linear travel. I sold the amp, enclosure and the Passive Radiator that this was being used with already, so this is a driver only sale. First $50 takes it. The driver new sold for $140 if memory serves, and is probably 6 or 7 years old. Never abused. Works perfectly.