I would recommend Niles as a good quality brand to try.
I do use a Niles speaker switch in my main rig to switch in various speakers in various rooms, including my main speakers, the big OHM F5s, with no noticeable ill effects.
I do use a Niles speaker switch in my main rig to switch in various speakers in various rooms, including my main speakers, the big OHM F5s, with no noticeable ill effects.