selectable output mute feature


I'm looking for a preamplifier, which has multiple output and mute them selectably. Switching output A and B is also OK. Many preamplifier equipped with some parallel output, but they are always ON. I have two poweramplifier & speaker systems and would like to select them from one preamplifier. Any suggestion is welcome. Thanks.
ibuski
??? I thought a lot of preamps had a selectable output, it isn't something Mac has a monopoly on. My Theta has a "Main/Remote" switch.
McIntosh preamps are about the only ones with that capability. You can operate up to three independant systems with one McIntosh preamp. It is a great idea but so far, few think of it. I too plan on having two systems through one preamp soon. Good luck! Arthur