power going in ,no power from amp to sub

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hrkustomz

Member - Posts: 2

Joined: April 11, 2009

Location: New York, United States

Posted: April 11, 2009 at 6:45 PM / IP Logged

I have an alpine deck iva-w205 , 2 amps mrd-m1005, and a 12" type x sub. I did a full custom enclosure but befor i set to paint it i want to test it out.

I have power going in to the amp and all is turning on.

When i test for power going to the sub i have no volts. i tried both amps. Same prob, I had the system installed befor in a simple enclosure and all worked.

I think i have a prob with my rca wires. I tested them and have continuity. So im wondering what readings should i get from the back of the deck at the rca points. or if there are any other test i can perform.

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i am an idiot

Platinum - Posts: 13,670

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: April 11, 2009 at 7:09 PM / IP Logged

When checking audio voltages you need to have the meter on the AC Volts selection.

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hrkustomz

Member - Posts: 2

Joined: April 11, 2009

Location: New York, United States

Posted: April 11, 2009 at 7:13 PM / IP Logged

i know that... Im wondering what my readings from the back of my rca out puts on the deck should be....

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i am an idiot

Platinum - Posts: 13,670

Joined: September 21, 2006

Location: Louisiana, United States

Posted: April 11, 2009 at 7:23 PM / IP Logged

With music playing, you will probably read about 1/4th of what the deck's preamp output voltage is rated at. 2V output probably reads .500 volts. 4V output will probably read around 1V. If playing a test tone, the proper frequency, it should be very near the rated voltage.

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power going in ,no power from amp to sub

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