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    Need help, series tuned bandpass

    This is just an idea I sketched up with my max outer dimensions, not totaly to scale. Idea is a series tuned bandpass usually used for blowthroughs, but was wondering if it could be addapded for wall type build with a loading wall. the image is how it would be built. Vehicle is a F-150 ext cab. Im going for low tuning around 30Hz and the subs depending on what would fit would be 4 RE SX 15's or 6 JBL GTO 15's

    If somone could add some insight whether or not it would work and possibly a tooscale skectup would be great.



    A New Begining Starting Over
    2003 F-150 extended Cab
    Head unit: Pioneer 880
    Speakers: JBL comps
    Amp: JBL 100x4
    Sub Amp: ?
    Subs: Possible 4 SX 15's or 2 SX 18's
    Box:18-20 sq ft @ 30
    Batts: Still Need
    alt: mechman still to order
    Wire: Lots of 1/0

    refs: rem, mihklo, ilaydit, Mirage_Man,Looney_Tune,fawd06, LuckyT




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    Re: Need help, series tuned bandpass

    is that small chamber in front the part thats going to be ported in to the cab?



    Looking for copper, aluminium or brass let me know i can get it

    member of Team 808
    need TL metering in rochester, buffalo area pm me
    sold to,,TnT_sounds,soloxGT,WOT,Groundpound4200
    bought from,,peas247,astrolade,

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    Re: Need help, series tuned bandpass

    the entire enclosure is in the cab, the chamber in front is more so a loading wall i guess. to picture it better think of it built exactly standing vertically inside the cabin of a F-150. but i guess yes thats what would be ported into the cabin but from the designs iv seen the entire mouth of the enclosure has been open.



    A New Begining Starting Over
    2003 F-150 extended Cab
    Head unit: Pioneer 880
    Speakers: JBL comps
    Amp: JBL 100x4
    Sub Amp: ?
    Subs: Possible 4 SX 15's or 2 SX 18's
    Box:18-20 sq ft @ 30
    Batts: Still Need
    alt: mechman still to order
    Wire: Lots of 1/0

    refs: rem, mihklo, ilaydit, Mirage_Man,Looney_Tune,fawd06, LuckyT

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    pr-festiva's Avatar
    pr-festiva is offline gots to get 150 with pr's



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    Re: Need help, series tuned bandpass

    im running a series 6th order right now 2.33 cubes ported to 36Hz and about 16 ported at about 64 hz and it works pretty well,,i would try a smaller rear chamber and a larger front chamber.



    Looking for copper, aluminium or brass let me know i can get it

    member of Team 808
    need TL metering in rochester, buffalo area pm me
    sold to,,TnT_sounds,soloxGT,WOT,Groundpound4200
    bought from,,peas247,astrolade,

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    JBloud47's Avatar
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    Re: Need help, series tuned bandpass

    thats what iv herd for 4th orders but for this series tuned type enclosure im cluless on hwo to tune it or what size encloseres to use for each chamber. due to the loading lactor of he subs firing at each other. 15's usual around 1.25-1.5 cudes per sealed and the fron chamber as big as u can mak it but the tuning is a ?



    A New Begining Starting Over
    2003 F-150 extended Cab
    Head unit: Pioneer 880
    Speakers: JBL comps
    Amp: JBL 100x4
    Sub Amp: ?
    Subs: Possible 4 SX 15's or 2 SX 18's
    Box:18-20 sq ft @ 30
    Batts: Still Need
    alt: mechman still to order
    Wire: Lots of 1/0

    refs: rem, mihklo, ilaydit, Mirage_Man,Looney_Tune,fawd06, LuckyT

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    pr-festiva's Avatar
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    Re: Need help, series tuned bandpass

    the low tuned chamber is going to be in the upper 20's or 30's and the front chamber is tuned from low 40's to 70's,, it depends on what you are going for,,, i need to tune both my chambers higher for more spl



    Looking for copper, aluminium or brass let me know i can get it

    member of Team 808
    need TL metering in rochester, buffalo area pm me
    sold to,,TnT_sounds,soloxGT,WOT,Groundpound4200
    bought from,,peas247,astrolade,

  7. #7
    JBloud47's Avatar
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    Re: Need help, series tuned bandpass

    well im going for more of a daily driver low and loud. tryig to get good responce from mid 20s- 60s hz range. dont know how reasonable that is but lows is what im going for.



    A New Begining Starting Over
    2003 F-150 extended Cab
    Head unit: Pioneer 880
    Speakers: JBL comps
    Amp: JBL 100x4
    Sub Amp: ?
    Subs: Possible 4 SX 15's or 2 SX 18's
    Box:18-20 sq ft @ 30
    Batts: Still Need
    alt: mechman still to order
    Wire: Lots of 1/0

    refs: rem, mihklo, ilaydit, Mirage_Man,Looney_Tune,fawd06, LuckyT

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    pr-festiva's Avatar
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    Re: Need help, series tuned bandpass

    how much room do you have?



    Looking for copper, aluminium or brass let me know i can get it

    member of Team 808
    need TL metering in rochester, buffalo area pm me
    sold to,,TnT_sounds,soloxGT,WOT,Groundpound4200
    bought from,,peas247,astrolade,

  9. #9
    JBloud47's Avatar
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    Re: Need help, series tuned bandpass

    dims are on the sketch. but its 46w x 38h x 21-23 deep roughly



    A New Begining Starting Over
    2003 F-150 extended Cab
    Head unit: Pioneer 880
    Speakers: JBL comps
    Amp: JBL 100x4
    Sub Amp: ?
    Subs: Possible 4 SX 15's or 2 SX 18's
    Box:18-20 sq ft @ 30
    Batts: Still Need
    alt: mechman still to order
    Wire: Lots of 1/0

    refs: rem, mihklo, ilaydit, Mirage_Man,Looney_Tune,fawd06, LuckyT

  10. #10
    pr-festiva's Avatar
    pr-festiva is offline gots to get 150 with pr's



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    Re: Need help, series tuned bandpass

    inner or outer dimentions?



    Looking for copper, aluminium or brass let me know i can get it

    member of Team 808
    need TL metering in rochester, buffalo area pm me
    sold to,,TnT_sounds,soloxGT,WOT,Groundpound4200
    bought from,,peas247,astrolade,

  11. #11
    JBloud47's Avatar
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    Re: Need help, series tuned bandpass

    those would be my outer dims



    A New Begining Starting Over
    2003 F-150 extended Cab
    Head unit: Pioneer 880
    Speakers: JBL comps
    Amp: JBL 100x4
    Sub Amp: ?
    Subs: Possible 4 SX 15's or 2 SX 18's
    Box:18-20 sq ft @ 30
    Batts: Still Need
    alt: mechman still to order
    Wire: Lots of 1/0

    refs: rem, mihklo, ilaydit, Mirage_Man,Looney_Tune,fawd06, LuckyT

  12. #12
    pr-festiva's Avatar
    pr-festiva is offline gots to get 150 with pr's



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    Re: Need help, series tuned bandpass

    how thick you making the walls?



    Looking for copper, aluminium or brass let me know i can get it

    member of Team 808
    need TL metering in rochester, buffalo area pm me
    sold to,,TnT_sounds,soloxGT,WOT,Groundpound4200
    bought from,,peas247,astrolade,

  13. #13
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    Re: Need help, series tuned bandpass

    If you want that range of freq I would try a really good built sealed box but the bp should be good too



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    Re: Need help, series tuned bandpass

    well prob single with alot of glass and threaded rod. but if done some more calcs and with the design like it is i dont think i have enough space for 4 15's since i think it acts more like a clamshell then a BP. with those mesurments i got a gross of 19.26 before any displacment. i might have to rethink what to do.



    A New Begining Starting Over
    2003 F-150 extended Cab
    Head unit: Pioneer 880
    Speakers: JBL comps
    Amp: JBL 100x4
    Sub Amp: ?
    Subs: Possible 4 SX 15's or 2 SX 18's
    Box:18-20 sq ft @ 30
    Batts: Still Need
    alt: mechman still to order
    Wire: Lots of 1/0

    refs: rem, mihklo, ilaydit, Mirage_Man,Looney_Tune,fawd06, LuckyT

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    JBloud47's Avatar
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    Re: Need help, series tuned bandpass

    i think i might bck up and just go with 2' 18 re Sx's ina 4th order bandpass. 2 cubes per for the sealed chamber. but that kind of tuning should i use for the front. as i said before its a daily driver so the scores on the TL dont realy matter just want to sound good a get low



    A New Begining Starting Over
    2003 F-150 extended Cab
    Head unit: Pioneer 880
    Speakers: JBL comps
    Amp: JBL 100x4
    Sub Amp: ?
    Subs: Possible 4 SX 15's or 2 SX 18's
    Box:18-20 sq ft @ 30
    Batts: Still Need
    alt: mechman still to order
    Wire: Lots of 1/0

    refs: rem, mihklo, ilaydit, Mirage_Man,Looney_Tune,fawd06, LuckyT

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