Sequoia_Bass

Signal Issues!!! Reduced DB's

10 posts in this topic

I am having signal issues, I have 1 sub wired parelell with 1 amp, there is cancelation between the rca's somehow, when i plug red rca from headunit to amp it is louder then plugging both in, also white rca from headunit gives no signal, but will reduce volume when plugged int with white one. This is first time this has happened to me, i took out my old system and have been building new one and this happened. using same amps, same subs, same settings same grounds and same power wire and everything is same except box. also i tried other rca cables to make sure the ones i am using wernt just shorting out, also my mids and high amps both rca outputs work just fine for them, and when both plugged in it is louder.  Does anyone have suggestions?

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You have a problem with the head unit if the white RCA out gives no signal.

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You think it's time to buy new headunit?

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Yes, sounds like the pre amp on that channel went out.

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Could he check the output with a digital multimeter to see if its toasted? Is that a function u can do with a dmm? 

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2 hours ago, 06RTCharger said:

Could he check the output with a digital multimeter to see if its toasted? Is that a function u can do with a dmm? 

As long as the DMM can read AC voltage

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Cool, that would be a good step to take before tossing out the headunit. OP If u dont have a dmm, its probably a decent investment if u deal with the car audio hobby. I found that the local sears has the best deals on fluke meters. 

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I do have a DMM, i will check the rca outputs either tonight or tomorrow, and get back to you guys

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I'm sorry to get back to you guys so late, i tried measuring the voltages but all of them came under .2 volts, i tried flipping from ac to dc measurming and also tried flipping positive and negative on the rca just incase it was reversed, but all of it failed, but yet my mids and highs are just as loud when i plug it into my amp( gain a tad below halfway) 

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