Hi everyone, I want to power a car amp at home but instead of finding a high current DC power supply to feed it (which is totaly inefficient) how about bypassing the smps in the amp. Suppose the amp had 35 volt rail voltages I would insert a supply with that requirement into the board. Now the amp will be just like a home reciever. The amp will still have to be powered by 12vdc to provide basic functionality, so I would not have to construct any secondary supplies. Has anyone ever attempted this and was successfull? Any design obstscles? Thanks for any input.