Hola, leyendo una review sobre el onkyo 805 lei esto:

Bi-Amping-option with employment of high-quality front loudspeakers

The two output stages of the TX-SR805E, which are intended for the Surround baking acoustic irradiation, can be used alternatively also for the Bi-Amping of the front channels. This is useful if very high performance front L/R loudspeakers are used. By means of the Bi-Amping-option then high more /Mitteltoener and Tieftoener of the front loudspeakers of separate output stage units are headed for. Depending upon loudspeaker Setup and hearing taste a particularly serious and sovereign sound can be produced by the Bi-Amping - it is not natural however that, depending upon user profile and assigned type of loudspeaker, by Bi-Amping actually better acoustic results to be obtained to be able. That depends also on from which quality the frequency switch sitting in the loudspeaker is. It can out-play their qualities with the single Amping connection and provide in such a way for a special klangliche design of the transducer - the frequency switch affects the acoustic behavior of the box enormously.

y segun parece dicen poder biamplificar usando canales traseros o algo asi pero queria saber si alguien sabe como esactamente porque no me entero..


saludos