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    Do Sonotubes need to be Reinforced?

    I was thinking about using a 8" sonotube in my next enclosure, but do they have to be reinforced with fiberglass or anything like that? Since they are cylindrical i'm assuming they are pretty sturdy as it is, and i really don't want to deal with fiberglass if i don't have to.


    Thanks in advance for the help.



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    Re: Do Sonotubes need to be Reinforced?

    It does help.




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    Re: Do Sonotubes need to be Reinforced?

    If they can stand the pressure of concrete, I'm sure it will be fine. I have a 18" wide and 5ft tall tube for my home audio and it works fine.



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    Re: Do Sonotubes need to be Reinforced?

    Bump,

    Anyone else have any input?

    I was thinking about a sub up port side with 2 12" HDCs in a 4ft3 box tuned to 38hz w/ 1 8" Sonotube.

    Do you think the sonotube will be ok w/o any kind of reinforcement?



    Vehicle - 03 Ford Escape XLT
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    Front Amp Some Profile Amp (forgot model #)
    Subs - old 4 12" AQ SDC2.5s new - 2 10" RD Alphas
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    Box 8ft^3 tuned to 38hz (built by Rashadd) new - 2.5ft^3 tuned to 36hz
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    Re: Do Sonotubes need to be Reinforced?

    Ya it'll be fine, those things can take a beating. I sprayed the outside of one with some car undercoating that has (sound deadening) and that helped it structurally and deadened higher frequencies. It's cheap and might be worth it, $6 at autozone or walmart.

    Just out of curiosity, why go down from your four AQs you have now?



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    Bought from: (Skip01) Traded with: (Ridinhi) Sold To: (xxxbasshead)

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    Re: Do Sonotubes need to be Reinforced?

    Quote Originally Posted by netzero View Post
    Ya it'll be fine, those things can take a beating. I sprayed the outside of one with some car undercoating that has (sound deadening) and that helped it structurally and deadened higher frequencies. It's cheap and might be worth it, $6 at autozone or walmart.

    Just out of curiosity, why go down from your four AQs you have now?
    I've already sold those a few weeks ago. Definitely more than loud enough for a daily driver, and i wanted to get some trunk space back. I'm currently running 2 10" rd alpha's @ the moment.

    Right now i'm using a flared labyrinth port for the alpha's, but i'm thinking if i use a sonotube for 2 12" AQs my box will only be 2" deeper than the current box for the alpha's, and i'm sure i'll have a little more output than i am currently getting them being 12"s (+ they should take a bit more power too).

    pretty much just an idea i'm throwing around in my head.

    do you happen to know the name of the deadening spray you used?



    Vehicle - 03 Ford Escape XLT
    Head Unit - Eclipse AVN2210P w/Kicker KQ30
    Frontstage - PG RSD 6.5 Comps
    Front Amp Some Profile Amp (forgot model #)
    Subs - old 4 12" AQ SDC2.5s new - 2 10" RD Alphas
    Sub Amp AB500.1 @ .5 ohm
    Box 8ft^3 tuned to 38hz (built by Rashadd) new - 2.5ft^3 tuned to 36hz
    Electrical - Kinetik 2400, 2 Powermaster D3100's
    150.3 Legal @ 45hz (sealed up on dash w/TL) new - unknown
    Build Log: Click Here <---Vids in Post #48
    Refs: Nate2587, morgans432, bbrownderville, Skip01, Incriminator, Rashaddd, vondocha, 528hz, dron178

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    Re: Do Sonotubes need to be Reinforced?

    Oh ok, ya I bet those four 12s were loud. Ya I would definitely go with the sono tube, if you can do it so you attach it from the inside and round over the outside of the port, you will have no noise at all.

    As for the spray, it was 3M "premium" or something spray on undercoat. It drys hard, but takes a few days to fully cure, but it has some texture and rubberization to it. Its nice, it adds integrity and weight to whatever it goes on, and keeps any pings and stuff down. This is a picture of a box i did with it.




    Head unit: Alpine CDA-9883
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    Re: Do Sonotubes need to be Reinforced?

    an 8" one should definitely be fine

    the bigger ones, I'd reinforce somehow




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    Re: Do Sonotubes need to be Reinforced?

    8" sonotube here... never had a problem



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    Re: Do Sonotubes need to be Reinforced?

    With my current setup (2) 10 inch sono's , I coated both the inside and out with fiberglass resin. They are fairly sturdy to begin with so the 8's will have a bit more structural ridgity to them due to the smaller size. You should be just fine as they are.




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    Re: Do Sonotubes need to be Reinforced?

    Thanks for the responses



    Vehicle - 03 Ford Escape XLT
    Head Unit - Eclipse AVN2210P w/Kicker KQ30
    Frontstage - PG RSD 6.5 Comps
    Front Amp Some Profile Amp (forgot model #)
    Subs - old 4 12" AQ SDC2.5s new - 2 10" RD Alphas
    Sub Amp AB500.1 @ .5 ohm
    Box 8ft^3 tuned to 38hz (built by Rashadd) new - 2.5ft^3 tuned to 36hz
    Electrical - Kinetik 2400, 2 Powermaster D3100's
    150.3 Legal @ 45hz (sealed up on dash w/TL) new - unknown
    Build Log: Click Here <---Vids in Post #48
    Refs: Nate2587, morgans432, bbrownderville, Skip01, Incriminator, Rashaddd, vondocha, 528hz, dron178

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