Marantz SM-11S1

The Marantz SM-11S1 is a reference stereo power amplifier that is a part of Marantz's reference series of A/V devices. The two channel outputs use unique parallel line layout for high channel separation and use a two-stage amplifier fora ccurate speaker drive which gives 110 watts per channel, which doubles to 220 watts when using low impedance speakers.

There is a high speed evolved HDAM SA3 module, which has the ability to accurately track rapidly changing audio signals for high sound fidelity. The high current power supply is based on a toroidal transformer and is sealed in an aluminum case mounted to the chassis on a 10mm thick aluminum base which feeds high quality circuit parts which are selected to give maximum souind quality. Other features used to minimize signal interferance include a power meter to monitor output levels that uses Hall-effect magnetic devices to monitor current flow to the speakers without directly tapping the output itself. The Marantz SM-11S1 has one balanced and one unbalanced stereo input with independant gain control, and has dual WBT speaker outputs that can be usded in bridge (BTL) mode.