Two are for sale now. The other two will be for sale after the 18th. These amps are powerhouses and known to do around 5,000watts @ 1ohm. One of the birthsheets reads a little over 5,000watts and another reads 4,9xx & something. We do not have birthsheets for the first two that are for sale. These two were bought directly from Rockford Fosgate and both have been repaired by Rockford Fosgate. They work flawlessly. The first two for sale also do not include the remote bass knob. You can buy new ones for $30 shipped from Ebay. Price for the first two will be $870 obo each shipped and insured through UPS. The covers are included.