I've had this amp lying around for about 3 months, and never got around to sending it out to be fixed. It turns on fine, but there's no power. Will cost $100-$150 to be fixed, got the qoute from http://www.db-r.com. Asking $200.00 shipped OBO.
Specs for HK4000d: http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=14753
Specs for HK4000d: http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=14753