This is a nice quality Aiwa TS-W35U Subwoofer. It features an impedance of 8 ohms.
“Without any doubt, the best bargain in home theater subs. I had many people recommend more expensive subs nearly twice my budget, while I appreciate the advice, I am glad I went with this sub anyway. This is a beautiful subwoofer in every way, from its performance to its gorgeous looks. This thing hits down to 20hz with authority, it has very little roll off to 20hz, which is surprising for its...” --blake18
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
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