03-04-2019, 02:34 PM | #1 |
Drives: 17 SS 1LE Join Date: Dec 2015
Location: Houston
Posts: 1,920
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Amp Ground noise
Getting a ground noise with no inputs connected to the amplifier, any ideas? When only the radio is on, there is a clean signal. But once accessory power is on the noise starts.
The amp is grounded to the battery. |
03-04-2019, 04:35 PM | #2 |
Drives: 17 SS 1LE Join Date: Dec 2015
Location: Houston
Posts: 1,920
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Interestingly it comes and goes when the DRLs are on.
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03-04-2019, 08:28 PM | #3 |
Drives: 2019 Camaro 2SS Join Date: Jan 2019
Location: kcmo
Posts: 49
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how are you getting your audio signal? does it have a factory Bose amp?
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03-04-2019, 09:31 PM | #4 |
Drives: 17 SS 1LE Join Date: Dec 2015
Location: Houston
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No external amp, getting signal from a PAC Amp Pro. However it’s not from the input because when I unplug the input from the amp the noise remains.
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03-05-2019, 06:46 AM | #5 |
Drives: 2019 LT3 RS Convertible Join Date: Sep 2018
Location: New Hampshire
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So the noise comes and goes with the DRL and does it with or without input connected.
You could try moving the ground to a different point. Sounds to me like the amp is just touchy. |
03-05-2019, 01:58 PM | #6 |
Drives: 17 camaro ss Join Date: Mar 2018
Location: michigan
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Use the ground stud in front of the battery negative ground stud.
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03-13-2019, 12:55 PM | #7 |
Drives: 17 SS 1LE Join Date: Dec 2015
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Ended up being the driverside passive crossover. There was some wiring running by it.
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03-13-2019, 01:00 PM | #8 |
Hot Dog
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Thanks for posting the root cause. Where is your passive crossover located?
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03-15-2019, 01:17 PM | #9 |
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03-15-2019, 03:50 PM | #10 |
Drives: 2017 ZL1 Convertible A10 Join Date: Aug 2017
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I have a quasi three way setup up front, with passive crossovers between my tweeter and 2.7" midrange driver. As you mentioned, we mounted them in the trunk near the amplifier.
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