I'm original owner of this custom passive sub built by Christof, a very talented woodworker and a member here.
The sub is in great condition with a few minor scratches here and there but you have to look closely to see them.
I upgraded with the 12" Shiva X driver couple years ago and have about 2 hours of playing time. You have to see this sub in person to appreciate the craftsmanship and the beauty of it. It's definitely one of a kind, not many of them are around. Christof built only a few of them because of extremely tedious and labor-intensive.
I have two of them, only need one to fulfill my room.
$750 $700 OBO, Local Pickup in 91350.
I can deliver anywhere withing couple hours of driving if needed.
Thanks
You can check out more pics from my gallery below.
http://www.audiocircle.com/index.php?action=gallery;area=browse;album=174
