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    L7 15 Box Question

    I built a 4cuft net box tuned to 38hz for a L7 15 for my brother. The sub is loud inside the truck(ext cab dodge ram) with the windows down. Everything inside the house is rattling and the sub is loud in the house. However, take 5 steps away from the truck and the sub just doesn't seem to be very loud. Why is this? He had 2 old style Type R 10's in a small ported box(not sure of size or tuning) and it was much louder outside the truck than the 1 15. The box is sitting in the middle of his truck with the 15 firing forward between the seats and the port is up.

    Could box size and tuning be an issue here? Should he go with a larger box tuned lower? Or, same size box tuned lower? Or, what? His goal is to be loud on the "outside" of the truck.

    TIA



    Vehicle: 2000 Toyota Tacoma Sr5 4wd ext cab with lot of raammat
    Headunit: Pioneer Deh-8600mp
    Speakers: 2x Phoenix Gold RSD65CS on Autotek ss amp
    Sub: 2 RE SX 15's Walled, 2 RE SX 12's, 2 Pioneer Champion Pro 12's
    Electrical: Red Top, Powermaster D2400, Big 3, 0 gauge, Stinger Sr200, 130 amp alt
    Amp: 2 Hifonics 1000d < need more power

    http://www.caraudio.com/forum/showthread.php?p=6352435#post6352435 feedback




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    Re: L7 15 Box Question

    were the type r's firing the same direction?



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    Re: L7 15 Box Question

    idk if this applies to the outside of the car but it could be a knot hole.



    4x 12" HDC3's
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    Re: L7 15 Box Question

    My truck is doesn't seem as loud on the outside as others, but it's a different story on the inside. If it's loud on the inside, which is where it should be, then who cares?

    Edit - He wants to be loud on the outside? Is he doing drive-by or something? Tell him to ditch the truck and get a SUV.




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    Re: L7 15 Box Question

    Quote Originally Posted by Lakota View Post
    My truck is doesn't seem as loud on the outside as others, but it's a different story on the inside. If it's loud on the inside, which is where it should be, then who cares?
    drive by..... other than that some people want people to here them. i had this problem with my buick where it wasnt loud outside the car. but with my explorer i was able to get my drive by score very loud



    4x 12" HDC3's
    1x Hifonics Maxximus (rated 10,000@1ohm)
    2x Powermaster D3100
    8x runs of 0 gauge
    1x stock alt

    155.2 dB legal (vehicle off and @50Hz) in a Ford exploder

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    Re: L7 15 Box Question

    05gliguy The alpines were sub up and port up.

    psturmer knot hole?? wtf? lol

    lakota He is trying to be loud for his friends. Ya know? He doesn't compete or anything like that. I had the 2 RE SX 15's in my Tacoma and they were crazy loud inside and outside the truck. I guess he was expecting more loudness outside of the vehicle. However, I do agree with you. I'm all about loudness inside the truck. And that L7 is **** loud inside his dodge. He has an 800 watt audiobahn on the L7 and it is hard to swallow inside the truck.



    Vehicle: 2000 Toyota Tacoma Sr5 4wd ext cab with lot of raammat
    Headunit: Pioneer Deh-8600mp
    Speakers: 2x Phoenix Gold RSD65CS on Autotek ss amp
    Sub: 2 RE SX 15's Walled, 2 RE SX 12's, 2 Pioneer Champion Pro 12's
    Electrical: Red Top, Powermaster D2400, Big 3, 0 gauge, Stinger Sr200, 130 amp alt
    Amp: 2 Hifonics 1000d < need more power

    http://www.caraudio.com/forum/showthread.php?p=6352435#post6352435 feedback

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    Re: L7 15 Box Question

    If he wants it to be louder outside, he needs to tune much lower. Lower freq's carry longer. Instead of a 37 he should go for like a 32



    Quote Originally Posted by heyman421
    If SPL is your main objective, get 10's or 12's instead.
    Current System
    Car: 2008 WRX
    HU: Pioneer AVIC-D3
    Fronts: Tweeters up top
    Infinity 2ohm 3-ways in the doors
    Rears: Infinity 2ohm 3-ways in the doors
    Mid/High amp: HiFonics Zeus ZXi 4406 @ 110 X 4 rms
    Subs: 2x 12" Kicker L7 D4s
    Sub Amp: HiFonics Brutus BXi 2006D @ 1ohm (2KW RMS)

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    08 WRX Work Log(Pics)

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    Re: L7 15 Box Question

    Quote Originally Posted by DarkFox View Post
    If he wants it to be louder outside, he needs to tune much lower. Lower freq's carry longer. Instead of a 37 he should go for like a 32
    not necessarily. lower tuning is not as loud usually. 2 12'' R's tuned to 34 is louder outside the car than 30hz.

    my drive by is a 126 and can be heard very well. and thats around 45-50hz.

    if you could do 150db at 30 hz that would carry so far. talk to steve meade about that.



    4x 12" HDC3's
    1x Hifonics Maxximus (rated 10,000@1ohm)
    2x Powermaster D3100
    8x runs of 0 gauge
    1x stock alt

    155.2 dB legal (vehicle off and @50Hz) in a Ford exploder

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    Re: L7 15 Box Question

    Sounds like he wants to get his **** yanked. If he wants to impress tell him to have his friends sit IN THE CAR.




    Ben Hemp
    1992 GMC Sonoma Ext Cab NEW BUILD
    2008 MECA S1 KY State Champion, 151.0 dB
    2008 MECA S1 WorldChampion, 151.8 dB
    2010 MECA scores: 150.9 dB S2, 151.6 dB S3
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    Re: L7 15 Box Question

    mayebe for meter PSt but sounds like this guy is going for just a good old fashion ground pounder. with that 15 tuned kinda low, he should get the sound hes going for



    Quote Originally Posted by heyman421
    If SPL is your main objective, get 10's or 12's instead.
    Current System
    Car: 2008 WRX
    HU: Pioneer AVIC-D3
    Fronts: Tweeters up top
    Infinity 2ohm 3-ways in the doors
    Rears: Infinity 2ohm 3-ways in the doors
    Mid/High amp: HiFonics Zeus ZXi 4406 @ 110 X 4 rms
    Subs: 2x 12" Kicker L7 D4s
    Sub Amp: HiFonics Brutus BXi 2006D @ 1ohm (2KW RMS)

    98 Mustang Work Log (pics)
    08 WRX Work Log(Pics)

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    tuck05's Avatar
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    Re: L7 15 Box Question

    Quote Originally Posted by Lakota View Post
    Sounds like he wants to get his **** yanked. If he wants to impress tell him to have his friends sit IN THE CAR.
    Yeah thats basically what I told him.



    Vehicle: 2000 Toyota Tacoma Sr5 4wd ext cab with lot of raammat
    Headunit: Pioneer Deh-8600mp
    Speakers: 2x Phoenix Gold RSD65CS on Autotek ss amp
    Sub: 2 RE SX 15's Walled, 2 RE SX 12's, 2 Pioneer Champion Pro 12's
    Electrical: Red Top, Powermaster D2400, Big 3, 0 gauge, Stinger Sr200, 130 amp alt
    Amp: 2 Hifonics 1000d < need more power

    http://www.caraudio.com/forum/showthread.php?p=6352435#post6352435 feedback

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    Re: L7 15 Box Question

    Quote Originally Posted by Lakota View Post
    Sounds like he wants to get his **** yanked. If he wants to impress tell him to have his friends sit IN THE CAR.
    X2



    Quote Originally Posted by heyman421
    If SPL is your main objective, get 10's or 12's instead.
    Current System
    Car: 2008 WRX
    HU: Pioneer AVIC-D3
    Fronts: Tweeters up top
    Infinity 2ohm 3-ways in the doors
    Rears: Infinity 2ohm 3-ways in the doors
    Mid/High amp: HiFonics Zeus ZXi 4406 @ 110 X 4 rms
    Subs: 2x 12" Kicker L7 D4s
    Sub Amp: HiFonics Brutus BXi 2006D @ 1ohm (2KW RMS)

    98 Mustang Work Log (pics)
    08 WRX Work Log(Pics)

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    Re: L7 15 Box Question

    well i have the same problem mines quite outside but inside its LOUD and in my house when its on its loud and my box is 5 cubes at 36 hz but as long as i can impress people by the inside loudness im satisfied



    Car: 1988 Lincoln Town Car Sing Series
    HU: sony xplod
    Speakers:Premium Sound
    Amp:Sony Xplod 1000watt
    Subs:1 2002 kicker L7
    Box:5 cubes at 36 hz

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    Re: L7 15 Box Question

    Quote Originally Posted by imbumpking View Post
    well i have the same problem mines quite outside but inside its LOUD and in my house when its on its loud and my box is 5 cubes at 36 hz but as long as i can impress people by the inside loudness im satisfied


    yeah it is but you know my FI 18 in my van i loud too. lol




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