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  1. Technical & Advanced Car Audio Discussion
    Alright so here’s a shot of the near field frequency response of my driver side midbass -electronically crossed at 70 and 300 LR4 with no EQ- next to a flat target curve with matching crossovers. now here’s a look at that same drivers response from listening position -again no EQ just...
  2. Technical & Advanced Car Audio Discussion
    i have an odd response for my pillar mounted, passenger side 3” midrange.
  3. Technical & Advanced Car Audio Discussion
    AudioFrog GB15's JL 900/5 CDSP 8/12 DL 1800hz HighPass 12db LR Cap on each tweeter for protection I noticed that the right side tweeter had a huge drop in output audibly. I went ahead and took measurements of the entire 3 way active system to see if it was just one speaker or the entire...
  4. General Car Audio Discussion
    I have an active system. Since my DSP allows for multiple presets/modes, I was thinking of making a preset for tailgating (playing music outside the vehicle for say, a pre-concert parking lot pre-game!) Anyone ever done anything like this? Any tips? My effort was I guess just going to be tuning...
  5. Technical & Advanced Car Audio Discussion
    Hello everyone, Is it possible to use Airpods Pro for professional measurement? It has inward mic that measures inside the canal. And an outward one that measure environmental noise. Few questions I believe it would be worth to check, - Can we access the data of AirPods pro’ microphones...
  6. Technical & Advanced Car Audio Discussion
    Here is an example of my front speakers frequency response (Sub off. tweeters and mids are on active crossover @ 3.5 kHz). As you can see, the 100-300Hz range of my midrange speakers is much lower than the 400Hz-3.5kHz range. So do I EQ the 400Hz-3.5kHz range DOWN to this level, with the...
  7. General Car Audio Discussion
    Hi all, I thought this might be useful for someone. I measured the response of the subwoofer in an enclosure outside (backyard, no near walls etc), then measured again when the enclosure was installed in the car. No EQ or LPF/HPF were used. Dividing the two measurements should give an...
  8. Technical & Advanced Car Audio Discussion
    Is there any way to confirm time alignment is set properly with REW? I upgraded to a VXi 8 channel last weekend. I've got a basic tune on it (will be getting more into it this weekend). I've input the distances to my listening position (driver's seat) and checked it 3 times, so I'm pretty sure...
  9. Technical & Advanced Car Audio Discussion
    Hey folks What's the proper way to de-EQ a factory HU using Helix DSP? (manual: http://www.audiotec-fischer.de/files/BAs/Helix/Prozessoren/BA_HELIX%20DSP.pdf) I have a calibrated mic and a calibrated sound card. Would this work? 1) Hook up calibrated sound card output RCA out > AUX in on...
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