It is in excellent condition, unfortunately I only have one. I was more curious to hear how they sound than actually using it in my car/home.
Power Handling: 150 watts RMS/300 watts max.
Impedence of 4 ohms.
Dimensions: A: 8 1/4", B: 7 1/4", C: 4 3/4".
Recommended sealed: 0.16 cu ft (That's retarded small).
Recommended ported: 0.4 cu ft tuned to 34-35hz. Of course you can always tune lower.
Partsexpress.com sells one for $52.60 + shipping.
Buy mines for $40-$45 shipped depending on where you are.