<https://www.avsforum.com/threads/velodyne-signature-1812-anyone-heard-it.253245/>
<http://schema.org/articleBody>
"Just wondering if anyone has seen or heard this sub yet, from reading the spec sheet its a pretty darn impressive sub.\n\n \n\n\t\tsignature 1812.pdf 46.6474609375k . file"
<https://www.avsforum.com/threads/velodyne-signature-1812-anyone-heard-it.253245/>