This should do the trick.

[Link: inday.com]

General Features

Remote Controllable! Works with the RGB4X-R.

SPDIF Digital Audio 4-Input to 1-Output Switcher.

Accepts Toslink or Coax inputs. Simultaneous Coax and Toslink outputs!

Input is automatically converted and sent to both outputs.

Small Size, 2x6x4". All Connectors are Gold Plated RCA.

Toslink connectors with Shutter openings. No Toslink Plugs!

Expand the input selection of your AV Receiver or Home Theater system.