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  1. JBA

    Replaced speakers and lost Active Noise Cancellation (ANC)???

    For anyone looking for more info on the Ram Alpine system, the car audio forums are the right place to go.
  2. JBA

    Replaced speakers and lost Active Noise Cancellation (ANC)???

    Is pretty easy to pull the front left pins and flip if your even half handy, there are a few YouTube instructions. I would like for someone else to try it and let me know how they perceive each way sounds. Tip: Look up “phase tests” in Spotify or whatever service you use and try a few different...
  3. JBA

    Replaced speakers and lost Active Noise Cancellation (ANC)???

    Well I’m a bit baffled because it tests as out of phase in reference to both the centre and right speaker using continuous sin waves and transient pulse while reading with two separate identical microphones each on a channel of an oscilloscope. If I play phase tracks, both front doors are in...
  4. JBA

    Replaced speakers and lost Active Noise Cancellation (ANC)???

    Did a pile of sweeps with REW tonight and the passenger side is definitely much better in the mid bass to low mids problem area. I have to keep the bass at -6 to get this mid bass honk somewhat as flat as the stock eq will allow. The sub then fills in the low end with plenty extra on tap with...
  5. JBA

    Replaced speakers and lost Active Noise Cancellation (ANC)???

    First thing I did was disable ANC after installing an aftermarket exhaust so I should have no interaction there. Last night was the first time I listened in the passenger side and it’s way better than the driver side. What I don’t understand is why they would bother setting delays for one...
  6. JBA

    Replaced speakers and lost Active Noise Cancellation (ANC)???

    I just tested my 2022 Ram Alpine system using two mic’s, a signal generator and oscilloscope. I used both sine and square wave pulses. Front left dash is out of phase with the center and right. Parametric eq’s are definitely applied. But here is the kicker: the left door speakers have no delay...
  7. JBA

    Alpine 10sp - ongoing results from testing ANC, speaker polarities, wiring harnesses...

    More of the same to report for 2022. Currently upgrading my Alpine system and I definitely hear some phase issue in the front stage. All my factory amp pinouts check out except for the input wiring positive and negative to the amp for the driver side dash which both don’t match the schematic...
  8. JBA

    Alpine C1 connector signals between Infotainment and Amp

    Hello, Is there any info available on the signals wires from the Infotainment 12” screen to the Alpine amp (amp connector #1)? At this point in the signal chain do they have PEQ correction, any dynamic limiters etc, do they have a dc offset, what is their voltage range, and are they fixed or...
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