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Power Supply
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<blockquote data-quote="Unregistered" data-source="post: 9535"><p>The first thing a car audio amp does is boost the +12V input to a higher value using a form of switching power supply. If you by pass this part of the amp then u can save a bit of money. First find out what the rail voltage is for the amp usally +- some voltage around 30-35 volts then find a power supply that has this type of output voltage or build one with a transformer recticfier and filter cap and then the amp will work off of 120V AC converted to the right levels. This is more of a project for someone who has a little back ground in electronics and has many of the needed parts kicking a round. Another plus off running the amp this way is that a cleaner and maybe even higher output power could be obtained if the right size of supply is used. A supply that is in the 20-40 amp range would probally be plenty. If your are going to hook up a 12V supply i would suggest buying a small battery charger and car battery and running the amp off of it because a 12V 50amp supply is going to run you a whole lot more money then a high quality home amp.</p></blockquote><p></p>
[QUOTE="Unregistered, post: 9535"] The first thing a car audio amp does is boost the +12V input to a higher value using a form of switching power supply. If you by pass this part of the amp then u can save a bit of money. First find out what the rail voltage is for the amp usally +- some voltage around 30-35 volts then find a power supply that has this type of output voltage or build one with a transformer recticfier and filter cap and then the amp will work off of 120V AC converted to the right levels. This is more of a project for someone who has a little back ground in electronics and has many of the needed parts kicking a round. Another plus off running the amp this way is that a cleaner and maybe even higher output power could be obtained if the right size of supply is used. A supply that is in the 20-40 amp range would probally be plenty. If your are going to hook up a 12V supply i would suggest buying a small battery charger and car battery and running the amp off of it because a 12V 50amp supply is going to run you a whole lot more money then a high quality home amp. [/QUOTE]
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