Incriminator Audio 20.1: 450@4 ohms, 900@2 ohms, 1800@1 ohm. Very good condition. Used right now as my daily amp @ 1ohm.
It doesn't have a problem going below 1 ohm OR up to 16v. It is my 3rd and I just don't need it.
Box, manual, and remote gain included.
$525 shipped+insured in the CONUS.