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    18" HDC3 walled

    Me and my buddy are walling off his grand am. We are walling just a single HDC3 18" sub. We were wondering if we should go with a bandpass or just a slotted port. Im not sure how to design bandpasses so if anyone could help that would be great. Also, were not really sure where to tune this thing if we go with a sloted port. Im thinking we can get a good 12+ cubic ft. out of his back seat so thats the space we have to work with. Thanks for any help/input



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    Re: 18" HDC3 walled

    do 2 18s



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    Re: 18" HDC3 walled

    Cant he doesnt have enough cash



    ~~~~~~~~~~~~
    Equipment for sale-220A alt, Eminence Delta 10" speakers, BNIB MB Quart Q4.80, (2) IA 20.1's (Newest Version), SI BM Motor w/ Basket, (2) Deka Intimidator G31 Batts, 2 RD Sonance 15's with baskets (need recone).
    ~~~~~~~~~~~~
    Refs: Scott S, hornedfrog1985, dsmdan, Newageking, DBboom, R/T Pimp, SQcrewcab, Bumpin Buick, tangelo95, fearof85,
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    Re: 18" HDC3 walled

    these subs like to be tuned at around 36-38Hz IIRC. i agree with 99grandprix, he should save up and do 2 18s. 1 18 in that big a box may be overkill, in my opinion. 2 18s would be perfect for that amount of space.






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    Re: 18" HDC3 walled

    Quote Originally Posted by illbmeubu View Post
    these subs like to be tuned at around 36-38Hz IIRC. i agree with 99grandprix, he should save up and do 2 18s. 1 18 in that big a box may be overkill, in my opinion. 2 18s would be perfect for that amount of space.

    Thats why i was saying a bandpass would be better. It would require a bigger box than a typical slotted port.



    ~~~~~~~~~~~~
    Equipment for sale-220A alt, Eminence Delta 10" speakers, BNIB MB Quart Q4.80, (2) IA 20.1's (Newest Version), SI BM Motor w/ Basket, (2) Deka Intimidator G31 Batts, 2 RD Sonance 15's with baskets (need recone).
    ~~~~~~~~~~~~
    Refs: Scott S, hornedfrog1985, dsmdan, Newageking, DBboom, R/T Pimp, SQcrewcab, Bumpin Buick, tangelo95, fearof85,
    coma_toast, Blackga, spy, LouisianaCRX, Oxsign, etc...

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    Re: 18" HDC3 walled

    Instead of 1 AQ do 2 mj18's then. Cone area > power



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    Re: 18" HDC3 walled

    Quote Originally Posted by grimreper912003 View Post
    Instead of 1 AQ do 2 mj18's then. Cone area > power
    Lol, thats what i was just telling him.



    ~~~~~~~~~~~~
    Equipment for sale-220A alt, Eminence Delta 10" speakers, BNIB MB Quart Q4.80, (2) IA 20.1's (Newest Version), SI BM Motor w/ Basket, (2) Deka Intimidator G31 Batts, 2 RD Sonance 15's with baskets (need recone).
    ~~~~~~~~~~~~
    Refs: Scott S, hornedfrog1985, dsmdan, Newageking, DBboom, R/T Pimp, SQcrewcab, Bumpin Buick, tangelo95, fearof85,
    coma_toast, Blackga, spy, LouisianaCRX, Oxsign, etc...

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    Re: 18" HDC3 walled

    Quote Originally Posted by grimreper912003 View Post
    Instead of 1 AQ do 2 mj18's then. Cone area > power
    this does sound like a better idea. these will put you in about the same price range as the MJs are 175 ea. and you have more cone area; they will hit stupid low if you tune at about 32 Hz. what kind of amp is he gonna use?






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    Quote Originally Posted by TERROR-TRON-74 View Post
    and ohio, we beat up some *****s from ohio, thats a sissy state. nuthin but fine *****es live out there.

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    Re: 18" HDC3 walled

    The 2ohm coils come soon.



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    Quote Originally Posted by Worstenemy453 View Post
    Lmao i texted him to tell him bout a thread and he said, cant lulz, im at a tity bar. You ********* lulz.

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    Re: 18" HDC3 walled

    hmmmm. that's the way to go IMO






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    Quote Originally Posted by TERROR-TRON-74 View Post
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    Re: 18" HDC3 walled

    could also do 2 sd2.5 15s.



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    Re: 18" HDC3 walled

    Well, idk. I wanna see what the 1 18" would do in a bandpass. The geo metro wall build is using a single BTL. So im thinking a single AQ will work just as well in a bandpass.



    ~~~~~~~~~~~~
    Equipment for sale-220A alt, Eminence Delta 10" speakers, BNIB MB Quart Q4.80, (2) IA 20.1's (Newest Version), SI BM Motor w/ Basket, (2) Deka Intimidator G31 Batts, 2 RD Sonance 15's with baskets (need recone).
    ~~~~~~~~~~~~
    Refs: Scott S, hornedfrog1985, dsmdan, Newageking, DBboom, R/T Pimp, SQcrewcab, Bumpin Buick, tangelo95, fearof85,
    coma_toast, Blackga, spy, LouisianaCRX, Oxsign, etc...

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    Re: 18" HDC3 walled

    I'd go with a pair of MJ's tuned to 32hz...love those subs to death.



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    Re: 18" HDC3 walled

    Lol @ all the random suggestions. I would not do a slot ported for just one sub. I would deff do a bandpass. If you need help with the design get a hold of 80, he can help you out.




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    Re: 18" HDC3 walled

    Quote Originally Posted by annarbor84 View Post
    Lol @ all the random suggestions. I would not do a slot ported for just one sub. I would deff do a bandpass. If you need help with the design get a hold of 80, he can help you out.
    What random suggestions? We are giving him more options for his situation. You know what your doing but for some reason you always seems so cocky to me. It annoys the fawk out of me.



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    Quote Originally Posted by Worstenemy453 View Post
    Lmao i texted him to tell him bout a thread and he said, cant lulz, im at a tity bar. You ********* lulz.

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