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Reload Thread: want more bass? .... then open your sunroof!

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    want more bass? .... then open your sunroof!

    i always knew it sounded like there was a slight difference in bass response with the roof open and closed. so here is a chart of the sub-bass response in my car with it open and with it closed. there is a 7db difference at 20hz, a 5db difference at 32hz, and a 2db difference at 40hz. at 20hz and 32hz those are pretty big jumps with it open, the 2db jump at 40hz is a small difference but it's still there.

    i'm using the sub thats in my signature. it's placed on the left side of the hatch firing to the right side.

    here is the chart



    07 Scion tC: 880PRS, ID OEM 6.5" mids, Seas neo alum tweets, DD S4 and DD C2a amps, Dayton Ref H.O. 10(.7net, tuned to 30hz)

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    Re: want more bass? .... then open your sunroof!

    I dont have a sunroof




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    Re: want more bass? .... then open your sunroof!

    Quote Originally Posted by 97gp View Post
    I dont have a sunroof
    i guess opening a window might do the same, but it would probably let in more wind and road noise. i remember reading quite a few times on here that opening a window will get you a higher number in a DB Drag.

    but the way my sunroof is i can drive around up to about 50-55 mph and not even notice it being open. i don't hear any extra wind noise till i'm over 55 mph.



    07 Scion tC: 880PRS, ID OEM 6.5" mids, Seas neo alum tweets, DD S4 and DD C2a amps, Dayton Ref H.O. 10(.7net, tuned to 30hz)

    HT: Samsung PN58B560 - 80gig PS3 - Yamaha RX-V2500 - Infinity Alpha 50 mains - Alpha center - Harmon Kardon HKB6 rears, Epik Sentinel & ED eQ.2.

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    Re: want more bass? .... then open your sunroof!

    Interesting




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    Re: want more bass? .... then open your sunroof!

    that's awesome. i have the windows down but rarely open the sunroof. I'm going to do it more often.
    I ran my DB drag with windows up. It sounded louder windows up and i have a sealed box if that matters. the bass hits cleaner with windows down. it sounds fuller with windows down



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    Re: want more bass? .... then open your sunroof!

    this of course maybe vehicle dependent. remember that.



    07 Scion tC: 880PRS, ID OEM 6.5" mids, Seas neo alum tweets, DD S4 and DD C2a amps, Dayton Ref H.O. 10(.7net, tuned to 30hz)

    HT: Samsung PN58B560 - 80gig PS3 - Yamaha RX-V2500 - Infinity Alpha 50 mains - Alpha center - Harmon Kardon HKB6 rears, Epik Sentinel & ED eQ.2.

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    Re: want more bass? .... then open your sunroof!

    yep opening window/door does the same, thats why its called outlaw when ur getting metered, vs legal which is sealed up (harder to get as loud, especially in smaller vehicles and at lower frequencies)




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    Re: want more bass? .... then open your sunroof!

    Quote Originally Posted by tcguy85 View Post
    this of course maybe vehicle dependent. remember that.
    was about to say that but still substantial changes none the less.



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    Re: want more bass? .... then open your sunroof!

    Nice, I also thought that by sound of ear but thought it might be an illusion, when I went to a comp I cracked mine though... Did you open it all the way or what?



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    Re: want more bass? .... then open your sunroof!







    2003 chevy s-10 ext. cab
    hu: jvc kd-avx1
    precision power 356cs components
    front amp: infinity 475a
    sub: diamond audio d6 10d4
    enclosure: 1.1 cubes ported tuned @ 31hz
    sub amp: JL G1700

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    Re: want more bass? .... then open your sunroof!

    Quote Originally Posted by 22mountaineer View Post
    Nice, I also thought that by sound of ear but thought it might be an illusion, when I went to a comp I cracked mine though... Did you open it all the way or what?
    i could have opened it another inch if i wanted to, i opened it to the spot i usually open it to when i have it open.

    i thought it was cool to see the results. i was messing around and figured i'd pop it open to see if my ears were tricking me or not.
    it is also cool to know that my single little ten thats tuned to 30hz can still extend all the way down to 20hz flat.



    07 Scion tC: 880PRS, ID OEM 6.5" mids, Seas neo alum tweets, DD S4 and DD C2a amps, Dayton Ref H.O. 10(.7net, tuned to 30hz)

    HT: Samsung PN58B560 - 80gig PS3 - Yamaha RX-V2500 - Infinity Alpha 50 mains - Alpha center - Harmon Kardon HKB6 rears, Epik Sentinel & ED eQ.2.

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    Re: want more bass? .... then open your sunroof!

    no. two windows down>sunroof by far.



    Quote Originally Posted by bunkerking09 View Post
    i have a little weiner

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    Re: want more bass? .... then open your sunroof!

    Quote Originally Posted by kcdc30 View Post
    thanks, i just thought it was cool to SEE the results instead of thinking that i could HEAR a difference. just figured i'd share my proof.



    07 Scion tC: 880PRS, ID OEM 6.5" mids, Seas neo alum tweets, DD S4 and DD C2a amps, Dayton Ref H.O. 10(.7net, tuned to 30hz)

    HT: Samsung PN58B560 - 80gig PS3 - Yamaha RX-V2500 - Infinity Alpha 50 mains - Alpha center - Harmon Kardon HKB6 rears, Epik Sentinel & ED eQ.2.

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    Re: want more bass? .... then open your sunroof!

    Quote Originally Posted by icweiner View Post
    no. two windows down>sunroof by far.
    thats cool, but i can drive up to about 50 mph and not even notice the roof being open.

    sunroof > windows when you care about wind and road noise.



    07 Scion tC: 880PRS, ID OEM 6.5" mids, Seas neo alum tweets, DD S4 and DD C2a amps, Dayton Ref H.O. 10(.7net, tuned to 30hz)

    HT: Samsung PN58B560 - 80gig PS3 - Yamaha RX-V2500 - Infinity Alpha 50 mains - Alpha center - Harmon Kardon HKB6 rears, Epik Sentinel & ED eQ.2.

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    Re: want more bass? .... then open your sunroof!

    Quote Originally Posted by tcguy85 View Post
    thanks, i just thought it was cool to SEE the results instead of thinking that i could HEAR a difference. just figured i'd share my proof.
    i just thought it was a funny picture. no offense






    2003 chevy s-10 ext. cab
    hu: jvc kd-avx1
    precision power 356cs components
    front amp: infinity 475a
    sub: diamond audio d6 10d4
    enclosure: 1.1 cubes ported tuned @ 31hz
    sub amp: JL G1700

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