hifi engine

Marantz 2252B: internal bridge jumpers?

The Marantz 2252B manual is missing pages 5-6 where they describe the bridging between the main and pre-amps. Is it internal or do you need external jumpers?


Look on the back of the unit. If there are jacks labeled "Pre Out" and "Main In" there, they need to be connected with jumpers-or there will be a switch near them that connects or separates them internally.