This Yamaha series is one of the finest and best engineered audio components ever made
about
http://www.diyaudio.com/forums/chip-amps/152966-chip-amp-based-topologies-yamaha-mx-10000-quad-405-a.html
http://www.diyaudio.com/forums/solid-state/152734-yamahas-hyperbolic-conversion-amplification-hca-circuit.html
http://www.diyaudio.com/forums/digital-source/170182-yamaha-cdx-10000-schematic-etc.html
http://www.diyaudio.com/forums/analogue-source/161974-japans-ultimate-riaa-head-amp-yamaha-hx-10000-who-have-heard.html
you will find more informations concerning the circuit topology
Esta serie de Yamaha es uno de los componentes más finos y mejor ingeniería de sonido jamás se ha hecho
sobre
http://www.diyaudio.com/forums/chip-amps/152966-chip-amp-based-topologies-yamaha-mx-10000-quad-405-a.html
http://www.diyaudio.com/forums/solid-state/152734-yamahas-hyperbolic-conversion-amplification-hca-circuit.html
http://www.diyaudio.com/forums/digital-source/170182-yamaha-cdx-10000-schematic-etc.html
http://www.diyaudio.com/forums/analogue-source/161974-japans-ultimate-riaa-head-amp-yamaha-hx-10000-who-have-heard.html
encontrará más información sobre la topología del circuito