Marantz Model 60Channels2 PSU TransformerToroidal Speaker A BNo Speaker TerminalsMarantz SPKT 1+ Number of Terminals2 Power Output (8 4 Ohm RMS)60 W 80 W TopologyClass A B Audio Components and Technologies Current Feedback TopologyYes HDAM VersionSA3, SA2 High Grade Audio ComponentsYes Customised ComponentsYes Symmetric PCB LayoutYes Aluminium Extrusion Heat SinkYes Copper Plated ChassisNo Marantz Musical Digital FilteringNo Linear Drive Power SupplyYes BI AMP and