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Help me pick out sound deadening materials on Amazon

Discussion in 'Audio & Video' started by MajinMight, Jun 10, 2023.

  1. Jun 10, 2023 at 11:02 PM
    #1
    MajinMight

    MajinMight [OP] Member

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    There's only 50 different brands and kinds to choose from and I suffer from FOBO. Some products are a thin butyl rubber and some are a more thick foam product. I was thinking about getting a roll of each, but wanted some recommendations. I've installed a few sound systems in my personal vehicles over the years, but I've never bothered with dampening until now. I think the Tacoma really needs it.

    I just bought a bunch of speakers @ Skar Audio because they were having a Memorial Day sale, and I want to try to make the most out of the cheap speakers, so I wanted to dampen the doors and maybe even the back wall.

    I bought the cheaper 6 X 9 spacers from ********* $24.22 with shipping: https://*********.com/shop/toyota-t...5&wccpm2=1407766272&wccpm3=1407768677&wccpl=4

    I bought the RPX69 | 6" x 9" 270 Watt Coaxial Car Speakers - Pair from SKAR Audio $53.54 https://www.skaraudio.com/products/rpx69-6-9-inch-coaxial-car-speakers

    I bought the TWS-01 | 1-Inch 80 Watt Silk Dome Tweeters (Pair) from SKAR Audio $21.24
    https://www.skaraudio.com/products/tws-01-1-inch-component-tweeters

    I bought the Single 10" 1,200 Watt SDR Series Complete Subwoofer Package with Vented Enclosure and Amplifier from SKAR Audio. $288.99
    https://www.skaraudio.com/products/bndle-sdr-1x10d2-rp-800-1d-skar4anl-cca-complete-bass-package

    SKAR didn't charge any shipping so that was great, but they did charge me taxes $33.65 which is weird because they are located in Florida and i'm in Tennessee. $397.42 was the grand total with them.

    I plan on removing the sub from that SKAR box and installing it into this custom box just so it fits better in the back $224.44 with shipping:
    https://subthump.com/Toyota-Custom-...re-Box.html?osCsid=h1a8f7fv7vtqkmeog9rb4ca747

    So far i'm set back $646.08 and that was making myself by the cheaper stuff instead of splurging for top of the line audio equipment. It looks like i'll be spending at least $100 on this dampening material too. Hopefully I can sell that SKAR box or repurpose it later.

    Luckily I already installed the head unit back in 2019, and it still works great! Kenwood Excelon DDX9906XR cost me $550.00 used/open box on ebay back then. https://www.kenwood.com/usa/car/excelon/ddx9906xr/
     
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  2. Jun 11, 2023 at 8:50 AM
    #2
    soundman98

    soundman98 Well-Known Member

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    that's part of the new-ish federal law. companies realized they were missing out too much on online sales
    https://www.salestaxinstitute.com/sales_tax_faqs/collect_sales_tax_on_internet_sales

    sound damping is all about the same. the major difference is going to be the quality of butyl used, thickness, and name-brand markup.

    most stick with the 80 mil kilmat or siless version off Amazon. the 80mil thickness is similar to dynamat.

    any of the foam products, i'm not entirely convinced are beneficial in the vehicle environment for anything less than a competition-level setup.
     
  3. Jun 12, 2023 at 6:28 AM
    #3
    HBtaco

    HBtaco Active Member

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    +1 80 mil kilmat. I did all 4 doors and it made a huge difference - https://www.amazon.com/gp/product/B0751CBXBT?ie=UTF8
     
  4. Jun 12, 2023 at 6:36 AM
    #4
    rnish

    rnish Well-Known Member

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    Check out the Amazon brand sound deadening.
     
  5. Jun 12, 2023 at 6:39 AM
    #5
    Xperivent

    Xperivent Well-Known Member

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    +1 kilmat
     
  6. Jun 12, 2023 at 6:23 PM
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    soundman98

    soundman98 Well-Known Member

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    main issue with the Amazon stuff is that it's not a specified thickness.

    in another thread, i was able to locate some info indicating that it should be around 50 mil. so it works, but is inherently less effective at mass-loading due to it's reduced mass. one could easily double it up to get 100mil of deadener, but i'm not sure it's as cost effective at that point.
     
  7. Jun 13, 2023 at 2:36 AM
    #7
    rnish

    rnish Well-Known Member

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    I measured it. 80 mil
     
    soundman98[QUOTED] likes this.
  8. Jun 13, 2023 at 4:43 PM
    #8
    Logans2001

    Logans2001 What’s crackin’

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    I just got some 100 mil Kilmat from Amazon that was on sale
     
  9. Jun 20, 2023 at 3:24 PM
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    Timootyus

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    Look into Resonix. It seems to be well regarded. Supposedly the best stuff out there according to some. There's a Facebook page called " the deadening" where a guy did a bunch of testing of different sound deadening if you really want to go down the rabbit hole.
     
    NavyDiver72 and andagi808 like this.
  10. Jun 22, 2023 at 5:38 AM
    #10
    MajinMight

    MajinMight [OP] Member

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    Seen your post late. I ended up going with killmat. I have my headliner and back panel removed. Waiting for the rain to stop so I can install. I can tell anything is going to make a huge difference, this truck feels like riding in a tuna can now lol. I can't wait to get my interior pieces back in. I'm thinking about sealing off that vent that let's the air pressure go outside when you shut the doors, and instead leaving my windows cracked when I shut the doors....
     
  11. Jun 23, 2023 at 8:06 PM
    #11
    bkhlrTaco's

    bkhlrTaco's “expletive deleted”

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    Sound dampening film will make the walls/floor/ceiling thicker and covering some of the door holes allowing less sound in.
    As far as noise from the truck goes I was wondering if spraying some rubberized spray on your panels before the film, would help reduce vibration of the panels since sound is vibration.
     
  12. Jun 23, 2023 at 8:31 PM
    #12
    stmpjmpr

    stmpjmpr Well-Known Member

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    would doing this also help with inside temperature?
     
  13. Jun 25, 2023 at 2:48 PM
    #13
    Timootyus

    Timootyus Member

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    I've heard that blocking that back vent is not a good idea. Something about the airbags going off and the pressure of that being dangerous if that vent is blocked. No clue if it's right or wrong. I have heard people using pool noodles to cut down on road noise. I think if you just search for "pool noodle mod" they should pop up.
     
  14. Jun 28, 2023 at 3:47 PM
    #14
    soundman98

    soundman98 Well-Known Member

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    all vehicles are leaky. windows that roll down and doors that open tend to be the major areas.

    blocking the vents mean that the doors will require more force to close. they release the air pressure from that, as well as from the HVAC system running.

    if the airbags go off, you'll likely have much larger problems anyways.
     
  15. Jun 28, 2023 at 3:49 PM
    #15
    nudavinci64

    nudavinci64 Robert @ Holy Horsepower

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    Boosted Money Pit....
    I went with Noico for most of the truck. I heard Kilmat had a funky smell to it.
     
  16. Jun 28, 2023 at 3:51 PM
    #16
    nudavinci64

    nudavinci64 Robert @ Holy Horsepower

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    what @soundman98 said I would not block them. more so for safety reasons.

    It won't be a super luxury car, but id says my truck's sound dbs are similar to the Tesla we have now. Both are not super quiet, but neither are loud. On road was around 65-70dbs and 30-40db when the parked engine off.
     
  17. Jul 1, 2023 at 7:30 PM
    #17
    MajinMight

    MajinMight [OP] Member

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    I've been driving around with the killmat on the roof only. Haven't had a chance to put the headliner back in or do much else. It keeps raining! But the killmat is on the roof with no headliner and it doesn't stink much at all. I thought it might be bad without the headliner in the summer but it isn't all that bad.
     
  18. Jul 1, 2023 at 10:11 PM
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    nudavinci64

    nudavinci64 Robert @ Holy Horsepower

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    Nice that’s good to know. Based on reviews I skipped kill at and went noico but it seems like a good choice some reviewers kwpt me from it. I drove around for a year with no headliner and no interior panels and blocs was great. Will have to give killmat a look again next time.
     
  19. Jul 3, 2023 at 6:37 AM
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    Nuked

    Nuked Active Member

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    I used the NVX brand sound deadening and Siless sound deadening and CCF
     
  20. Jul 3, 2023 at 4:50 PM
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    bismarck

    bismarck Well-Known Member

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