Herewith a paraphrased version of what a (professional engineer) user wrote on March 3rd. 2009 - see http://forums.rokulabs.com/viewtopic.php?t=19088
[i]"As a professional engineer with many years experience I consider that the Soundbridge R1000 radio is a unit where the power supply is bound to fail on a regular basis.
This being caused by a total lack of thermal management, which is mainly due to the plastic box, tape and sealant that surrounds the box of components that house the PSU, which remains permanently powered Ã¢â‚¬ËœonÃ¢â‚¬â„¢, and thus runs at an excessive temperature.
My own Ã¢â‚¬Å“back of the envelope calculationsÃ¢â‚¬