Radio Shack used a meter and said the power supply is working. What's my next step?
Did they check the voltage AND the current at the same time...? I guess not. As stated many times on this forum, the voltage must
be checked while the SoundBridge is being powered.
The 1.2 amp supply might just work as a quick test. But - make sure it is regulated and make 100% sure that you select the correct voltage and polarity. And if it works (even briefly) then you'll know to get a better supply. Do not be tempted to make do with the 1.2 amp unit - it may work for days or months, but it will not be reliable in the longer term.