This is a nice quality Aiwa TS-W35U Subwoofer. It features an impedance of 8 ohms.
Frequency response 25Hz-250kHz . Reversible top gasket. Large copper-wound Kapton voice coil. Auto tension push terminals. Flat Conex spider with loop stitched tinsel leads
SubCasts allow you to make up to two subwoofers wireless. No programming, no assigning IP addresses, just plug Sub "out" into SubCast transmitter and power it up, then plug receiver module into subwoofer inputs and power it up. Subwoofers can now be placed anywhere in the room.
Orion Cobalt Series 10 Inch 400-Watt Subwoofer - ORN CO104SFEATURES: Frequency response 39Hz-250kHz Reversible top gasket Large copper-wound Kapton voice coil Autotension push terminals Flat Conex spider with loop stitched tinsel leads Orion Cobalt Series 10 Inch 400-Watt Subwoofer - ORN CO104S