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jjohnston

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About jjohnston

  • Rank
    Junior Member
  • Birthday 12/13/1979

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  • Location
    Minneapolis, MN
  • Interests
    Cars, Audio, technology

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  1. jjohnston

    Shh Very Quiet... How do I get a quiet car

    Maybe I'll get this https://store.secondskinaudio.com/luxury-liner-roll-half-roll-54-x-10-for-45-sqft-mass-loaded-vinyl-mlv/
  2. jjohnston

    Shh Very Quiet... How do I get a quiet car

    Ok, so I'm better off with the normal roadkill, and use the savings for a roll of MLV. does it make sense or help to put MLV in the door? do they make self adhesive mlv, or is that more cut to fit, and glue in? My thought with the ultra roadkill was that the fabric side would absorb any sound that makes it through the deadener. deadener to stop the vibration, fabric to "absorb" the sound, but maybe its a gimick?
  3. jjohnston

    Shh Very Quiet... How do I get a quiet car

    I'm looking at this... https://stingerelectronics.com/newsroom/blog/new-product-roadkill-ultimate
  4. I have always been into car audio, had a car that went to competition, won some awards, etc. But didn't get far into sound deadening and making a car quiet. my deadening was mostly done for panel rattles. Today I have kids, and my car is a family hauler traverse. I need to keep the factory system. I'm going to do a DSP/Amp and some infinity speakers up front, all hidden within factory openings. I know its not Ideal for SQ, but its the position I am in. One thing I would really like to do is make the car inside as quiet as possible, without gutting the whole interior. This is where I need help and guidance. Right now the interior of my car reads about 65db A weighted. (not sure if A is the proper weighting to use for this or not). Since I'm doing front door speakers, I want to put stinger RoadKill Ultimate. Its the one with the deadener, and the foam absorption all in one. Then hopefully a spray on undercoating/deadening in the outside wheel wells and underbody. I will need to do everything in stages due to money, but am curious of anyone has taken the time test, or knows based on experience an educated guess as to the DB drop for each stage below? OR if anyone has any other recommendations to what my thoughts are. RoadKill Ultimate on front doors (door skins only) Underbody/wheel well spray on deadener outside of car RoadKill Ultimate on Back Doors (door skins only) RoadKill Ultimate on hatch door (door skin only) Roadkill Ultimate on Roof I think first I want to know will I notice a difference if I do just the front doors at all.... But would be cool if anyone has experience to tell me #1 has an aproximate 1db drop, 2 an additional 1 db drop, etc...
  5. jjohnston

    Factory sound processors?

    Yeah, I feel like I'm starting down a rabbit hole a bit. My main goal for now is to sound better than factory, and was thinking if quieter was a biproduct than cool! Lol
  6. jjohnston

    Factory sound processors?

    ok, so far here is my plan I guess. Infinity Kappa 90csx for the front doors, skip the back doors, and use that money to prep the doors roadkill to prep/treat the doors 1/4" gasket to seal the speaker to the door audiocontrol D-4.800 for the dsp... I'm thinking I like the thought of treating the doors, because my guess is it'll also make the car quieter? or will just the front doors do next to nothing for road noise?
  7. jjohnston

    Factory sound processors?

    I think I'll go with the roadkill
  8. jjohnston

    Factory sound processors?

    Would something like this help? https://www.amazon.com/Design-Engineering-050331-Speaker-Baffles/dp/B0039YWT80/ref=asc_df_B0039YWT80/?tag=hyprod-20&linkCode=df0&hvadid=312061076067&hvpos=1o5&hvnetw=g&hvrand=15028987309083472280&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9019796&hvtargid=pla-524199507245&psc=1&tag=&ref=&adgrpid=61856009493&hvpone=&hvptwo=&hvadid=312061076067&hvpos=1o5&hvnetw=g&hvrand=15028987309083472280&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9019796&hvtargid=pla-524199507245
  9. jjohnston

    Factory sound processors?

    Nice! I may just treat the doors then. I wonder, if I need to, I suppose I could always do an under the seat subwoofer. I had one once, but it didn't seem to do much... I don't think anyone makes a factory looking subwoofer kit for my car..
  10. jjohnston

    Factory sound processors?

    So when you say prep the doors... Do you mean dynomat etc? Not trying to sound dumb, it's just happening by accident lol
  11. jjohnston

    Factory sound processors?

    Might as well try it, or skip? I have no experience with these processors, I guess that's why I'm asking for feedback and help...
  12. jjohnston

    Factory sound processors?

    ugh, lots of ideologies here. In a perfect world, I would rock out with multiple subs, custom made fiberglass enclosures, aiming the speakers directly at my face, with sound proofing, gut the factory system, and install a $2,000 head unit, etc. Unfortunately there are constraints. Money being a big one, its a family hauler not a show car, and many more. So, while I do agree your comments are all VERY valid and correct, I think a step back needs to be taken to better understand the exact situation. The primary goal is to gain a better sound over factory, keeping everything hidden, and factory look, and within a reasonable budget. If putting in Infinity Kappa 90csx speakers up front, with the tweeter in the dash factory tweeter location, and the woofer in the door (factory location), using factory speaker outputs into the high input on the processor, applying some EQ, etc, won't gain me ANY advantage than I will just move along and keep factory. If my increase in SQ is modest, than I may just keep factory. If my SQ gain is a decent amount I may continue to do it. I'm not trying to bash the feedback and ideas, because I really appreciate all the responses and ideas. I just want to make sure we keep things in perspective. Thanks everyone for your help!!
  13. jjohnston

    Factory sound processors?

    yeah, no sub. But the factory system doesn't have a sub either. The speakers I'm looking at go down to 37hz, so I'm hoping its "enough" bass. BUT I don't want to find it has less bass than factory.
  14. jjohnston

    Factory sound processors?

    nope, no sub. when you say raw drivers, do you mean get the processor, and keep the factory speakers, or do you mean processor and front speakers and leave it as that?
  15. jjohnston

    Factory sound processors?

    Sorry if I was a bit confusing in my first post. My goal is to take the factory speaker outputs, into the high level inputs of the AudioControl unit, then do the processing work, then outputs from that into the infinity spakers. I just have never used one of the integration amps, so wanted to see if anyone had experience in how they sounded. I don't want it to sound the same or get worse. I also didn't know if it was a very small increase, or if it was a pretty noticable one, or if it was WOW, this is crazy better... lol
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