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Bass on Acceleration

ArcadeTracks

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I know someone asked about this not long ago, but I can't find it via forum search or Google search. That's how I knew (sort-of) what it was when I heard it! In any case, feel free to point me to the thread with a link if you have it.

I hear "bass pumping" sometimes when I accelerate -- while I have music playing or the "radio" is off. This is a feature to counteract something (acceleration noise?) but I can't remember what, and my searches in the manual & web have garnered no results.
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@ArcadeTracks You are probably referring to this in the audio settings:

Jeep Wrangler JL Bass on Acceleration 1685444727761
 

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It sounds like you are talking about Active Noise Canceling (ANC). I've got it in my Ram, tell you the truth I haven't even checked to see if the Jeep has it.

IIRC, on the Ram people experienced similar issues when adding external amplifires with ANC enabled.
 

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It does not.
So, I do have ANC on my build sheet. Hard to tell, but from the Alpine Amplifier description in the FSM, it looks like it may be part of either the Alpine option or included with 392 (which I believe has the Alpine anyway.

Beyond that, several inputs to the amp appear to impact:

CAN-IHS Inputs
  • Ignition switch status
  • System voltage
  • Vehicle speed
  • Engine RPM
  • Audio source, type and level controls
  • Audio mode for cabin/driver
  • Audio mute status
  • Park assist chime type/request and volume
  • Blind Spot Module (BSM) chime type/request
  • Vehicle configuration and status
  • Radio configuration and status
  • CAN configuration and status
  • Removable hard top ON/OFF status from BCM
  • Power top position
  • Door ON/OFF status from BCM
  • Door/Swing Gate ajar status from BCM
 

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ArcadeTracks

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I think it's the Active Noise Cancellation! I have a Rubicon, so it automatically came with Alpine. Now to decide if I want to disable it, or leave it alone. 🤔
 

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I think it's the Active Noise Cancellation! I have a Rubicon, so it automatically came with Alpine. Now to decide if I want to disable it, or leave it alone. 🤔
Have you added/changed anything on the audio side?
 

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So, I do have ANC on my build sheet. Hard to tell, but from the Alpine Amplifier description in the FSM, it looks like it may be part of either the Alpine option
That may explain it. I don't have the Alpine system and never heard of ANC in the JL.
 

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No--not yet. I usually blast music, but I'm not very picky about the quality, so I doubt I will do much to it
Looks like there are four mics, I think it's pointing to the sound bar for the first two, and the side panels in the cargo area right by the tailgate for the other two.

Any chance you accidentally covered one up or something that could be impacting?
Jeep Wrangler JL Bass on Acceleration 1685458381738


Jeep Wrangler JL Bass on Acceleration 1685458400494
 
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ArcadeTracks

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Looks like there are four mics, I think it's pointing to the sound bar for the first two, and the side panels in the cargo area right by the tailgate for the other two.

Any chance you accidentally covered one up or something that could be impacting?
Jeep Wrangler JL Bass on Acceleration 1685458400494


Jeep Wrangler JL Bass on Acceleration 1685458400494
No -- I haven't added much. I think it's working as intended, I'm just not used to it yet.
(Great diagrams!)
 

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No -- I haven't added much. I think it's working as intended, I'm just not used to it yet.
(Great diagrams!)
It's not working as intended if you're hearing this when the stereo is off.
 
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ArcadeTracks

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It's not working as intended if you're hearing this when the stereo is off.
Oh! Good to know. I'm going to see if I can capture it on video, but I doubt it, since it's more of a feel it/experience it thing. I'll ask the dealership to check into it tomorrow when they look at the busted window and broken seat
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