I've been trying to look at the temperature specs on the Rio Receiver to no avail. It doesn't seem to be listed anywhere. I found the empeg ones though: 5c to 55c operating (40-130f), -20c-60c standby (-4-140f). I have no clue whether the Rio Receiver is anywhere close to it though.

If it does, it seems temperature is less of a worry. If it was just turned off during extreme hot/cold it should be fine... Of course, I don't think there is any automated shutdown, though one could be made pretty easy.

I suppose the real issue then is moisture: rain, wet hands, and the ubiquitous dew. Rain and wet hands could be dealt with by building an enclosure. The dew worries me a bit more though.

-Biscuits