I have an alpine mrd-m500 and i hooked everything up and had my buddy look over it and everything is hooked up properly. The amp is getting power but the volt meter is reading 0. (its all digital) I basically re-wired the whole thing and it was not that either. I took the amp apart and checked for any broken soder and could not find any problems just by looking at it either... i need and expert to help me! is my amp toast?
Check to make sure amp is not in safe mode, you can turn this on and off in the menu.
You can use a voltage meter to verify you are sending a signal to the amp's rca inputs. You can download a 70Hz test tone online and burn that to cd. Play that track on repeat in your cd player and set the voltmeter to read AC volts, with the rca disconnected from your amp put one lead of the voltmeter on the center pin and the other lead to the outer piece of the rca cable. You should read a fairly steady voltage that is strongest when the cd player is turned all the way to max. Measure this voltage usually from 2 to 8 volts AC. Set the gain on your amp in the digital display to match this voltage. If you are getting a good signal from the cd player you can dissconnect the subwooer and measure the voltage on the amp. Connect each lead of the voltmeter to the + and - on the speaker output, If you read a AC voltage output here there is nothing wrong with the amp. The voltage read on the speaker outputs is usually <20 volts caution should be used when placing meter leads.
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Hi SPDGOD,
Could not find exact, but close manual. It is the MRP-M450 mono block amp from alpine.
Go to this url and view in Adobe. Print it if you need to
http://vault.alpine-usa.com/products/documents/OM_MRP-M450.PDF
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