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Anyone have experience with the (very) old Rockford car amplifiers

Anyone have experience with the (very) old Rockford car amplifiers

Anyone have experience with the (very) old Rockford car amplifiers

Hi, I have a Rockford Fosgate 4060sd amplifier(black heatsink) that blew when a "professional" installer installed it. Now I sit with a blow amp and an installer that does not want to take responsiblity for the repair - well I am selling his PC I repaired to cover my costs.

Does anyone know anything abou this amplifier? or have a circuit diagram for it. A friend tested my amp and told my that the MOSFETS transistors in the power section is blown. Before I spend any cash on this amp I would like to know why it did this.

Any help would be appreciated.

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