I have a Nakamichi A/V receiver that I use for the TV surround. I want to use the same speakers to listen to music powered by a different system. The speakers are ADS L810's front, Infinity Qe rear, Martin Logan Vignette center and a PSB powered sub. To power these for music I use an Adcom gfa 555 for front, Mitsubishi DA A7DC for rear, HK Citation 19 for center. All these go through an Adcom GSP 560 processor and controled by a Sansui AU7700 in seperated mode as a pre-amp. The receiver, of course, would not be operating at the same time as the seperates. Will the speaker signal back feed into the system that is off and not being used causing undesired sound or damage?
