How much heat is too much when keeping iQ speakers and subs in storage?

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I recently purchased an enclosed cargo trailer to haul around the various components of my iQ series system (multiple iQ15 and iQ15b speakers). The trailer gets to around 120 degrees Fahrenheit (50 Celsius) when in the sun. Should this be a concern for the equipment? I don't think so since I'm pretty sure they get hotter when operating outdoors for hours in direct sunlight but I'd figure it's worth asking.