I have two used 10" W3V3 JL Audio Subwoofers in a custom sealed box that I have out-grown. These are awesome subs, and put out 129 dB on a 500W amp. Plenty of thump. I guarantee these to be in perfect working order. Price is $300 + shipping...or $365 with the box. Local buyers are welcome, but I will ship no problem. Will send pics to interested parties only. PM me if interested.