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Old 11-17-2020, 05:43 PM
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Default Stumped by my Speakers

Hello, Iíve been a long time lurker here and now in need of some help. I have a 2015 Chevy Silverado 2500. It has Polk audio Componants in all 4 doors and a Rockford subwoofer. They are powered by a Rockford punch p1000X5. The amp is getting sub and speaker signal from my factory Bose amp through some Line out Converters one for sub and one for speakers. The amp seems to show no signs of clipping. The subwoofer plays fine. But all of the woofers and tweeters sound like a skipping cd when theyíre hooked up in the doors. Iíve taken them out of the doors and put wires directly from the amp straight to the speaker and same result. Iíve also replaced the loc for the speakers thinking it was that and still left with the same problem. Iím thinking my problem lies in the amp. I donít see how all 4 speakers would go out simultaneously. However after removal of door speakers I did find that the driver front woofer was blown. Iíve done the 9v battery test and all other speakers have passed that.
TIA for the help.
I am no audio guru here just installed some systems in my own vehicles and taught myself so if itís something simple Iíd be glad to learn.
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Old 11-18-2020, 02:59 AM
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diode test the blown speaker and see if it is a direct short. Could have knocked something out of the output section of the "4 Channel" and the "mono" output is fine. Essentially it is 2 amplifiers sharing the same power supply so ignore the sub output when diagnosing. I am unfamiliar with the stock system however are you able to grab signal before the fatory amplifier? Sounds like a line driver issue and not the amplifier if so though I would be interested in buying the amp as I need parts for another rockford amp lol.

Do you have another amplifier you can test with instead? otherwise another thing would be AC volt meter the wires going to and from the LOC and when the speakers cut does the wiring to and from the LOC drop it? obviously probe the same speakers wires "+/-" then probe the RCA prong and shielding, don't matter what probe goes to what wire obviously with AC
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Old 11-18-2020, 08:22 AM
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Originally Posted by sicone View Post
diode test the blown speaker and see if it is a direct short. Could have knocked something out of the output section of the "4 Channel" and the "mono" output is fine. Essentially it is 2 amplifiers sharing the same power supply so ignore the sub output when diagnosing. I am unfamiliar with the stock system however are you able to grab signal before the fatory amplifier? Sounds like a line driver issue and not the amplifier if so though I would be interested in buying the amp as I need parts for another rockford amp lol.

Do you have another amplifier you can test with instead? otherwise another thing would be AC volt meter the wires going to and from the LOC and when the speakers cut does the wiring to and from the LOC drop it? obviously probe the same speakers wires "+/-" then probe the RCA prong and shielding, don't matter what probe goes to what wire obviously with AC

I am going to be taking it to a local audio shop to look at hoping they will be able to figure it out. However if the amp is bad I will definitely let you know and we can work something out. Thanks for the response
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Old 11-18-2020, 09:51 AM
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Originally Posted by Daltonkk View Post
I am going to be taking it to a local audio shop to look at hoping they will be able to figure it out. However if the amp is bad I will definitely let you know and we can work something out. Thanks for the response
Ah well let me know the findings so I can file it away with possible scenarios haha. I don't think it is the amp. well the Rockford amp anyway haha.
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Old 11-18-2020, 03:16 PM
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Ah well let me know the findings so I can file it away with possible scenarios haha. I don't think it is the amp. well the Rockford amp anyway haha.

The only reason I donít think it is factory amp, which I forgot to mention. Is that my factory speakers in my dash still play fine in fact they are the only speakers that play atm. They have not been messed with at all, so they are still receiving stock power from stock Bose amp.
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