I Have an Eclipse 15" titanium Sub for sale, it is a bruiser. 750 w rms 1500w max dual 2 ohm voice coils. It is in a 1.25 cu ft sealed box, the box has 2" thick walls and is wired with 8ga power cable for the speaker cable. In other words, it is built like a brick sh!t house! I paid $1k for the sub alone a couple years ago. I will sacrifice for offers around $500. I also have a Rockford fosgate bd1000a1 sub amp 1000w rms at 2ohm. offers around $ 300 for that, i am willing to make package deals too or trade for interesting 3rd gen parts...