Hi Brian,
You and I own the same tuner. I have not experienced the same problem but I think I understand why it is occuring in your system. The on/off function is not pure in that the off function does not shut down the component. In the Fanfare operations manual it explains that that the unit is always receiving some power and that this helps in that whenever the unit is turned on it does not require a warm up period to operate at its glorious best. I use the balanced output connections and maybe that is why I do not experience noise from the preamp when I switch to the tuner source and it is turned off. It also may be that I have never cranked it up so loud with the tuner off to experience low tuner noise. I hope that was helpful.
Drew
You and I own the same tuner. I have not experienced the same problem but I think I understand why it is occuring in your system. The on/off function is not pure in that the off function does not shut down the component. In the Fanfare operations manual it explains that that the unit is always receiving some power and that this helps in that whenever the unit is turned on it does not require a warm up period to operate at its glorious best. I use the balanced output connections and maybe that is why I do not experience noise from the preamp when I switch to the tuner source and it is turned off. It also may be that I have never cranked it up so loud with the tuner off to experience low tuner noise. I hope that was helpful.
Drew