Multiple Receiver Switch Box

[drspiff]

{if this is in the wrong forum, please move it to a more appropriate place}

I'm in the process of building a switch box which will allow me to switch multiple receivers. The basic idea is similar to a speaker switch, but instead of one output to many inputs, it is many outputs to one input. For instance, on the shelf is a Sansui G8000, a Scott 390R, a Fisher 400, and a Yamaha CR-1020. I want to be able to audition the same speakers with multiple receivers.

This first pass uses some 4PDT relays to do the switching. But a comment on another thread about using MOSFETs to replace an output relay started me thinking about a solid-state switch box. My limited understanding of MOSFETS suggest they would be the perfect solution. High off impedance, low on resistance, and low switching voltage.

Any ideas, comments, or guffaws will be cheerfully accepted.

Regards,
Dr. Spiff