To further comment on Justin_time's post, don't forget about the "coefficient of expansion" differences between dissimilar materials, which is the operating principle behind your home's thermostat. This is a switching device that works by using a temperature sensitive BI-METALLIC strip or coil that flexes and bends.
Cryoing was originally used as a tempering process for HOMOGENOUS metallic materials, such as surgical instruments and car brake discs. Cryoing of different materials used in an audio device or component, having different coefficients of expansions, may theoretically result in damage or a shortened life span due to the contraction/expansion stresses placed upon the item. Personally, I would never cryo any device with non-homogenous materials, as this would be exposing it to conditions way, WAY outside of the operational design parameters.
Of course, theory may not be actuality in the real world, but I'm not going to chance it!
Cryoing was originally used as a tempering process for HOMOGENOUS metallic materials, such as surgical instruments and car brake discs. Cryoing of different materials used in an audio device or component, having different coefficients of expansions, may theoretically result in damage or a shortened life span due to the contraction/expansion stresses placed upon the item. Personally, I would never cryo any device with non-homogenous materials, as this would be exposing it to conditions way, WAY outside of the operational design parameters.
Of course, theory may not be actuality in the real world, but I'm not going to chance it!