See a teaser video for an upcoming test of an Old School Rockford Fosgate beast...the Power 650 Mosfet. This amp was available from the mid 1980's until the early 1990's and sold for around $1500. The Power 650 was made in the USA and a big brother to the Power 300 Mosfet and had a daddy....the Power 1000 Mosfet. See an extended article on this amp here: http://www.oldschoolstereo.com/2011/12/rockford-fosgate-power-650-mosfet-true.html Subscribe to BigDWiz: http://www.youtube.com/bigdwiz Follow me on Twitter: http://www.twitter.com/oldschoolstereo -BigD