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Reload Thread: I've got a problem with these L7's.

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    F150Matt's Avatar
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    I've got a problem with these L7's.

    Well I built a ported box for my L7's. First of all I never had it metered with them in the sealed box except in an outlaw competition and it did a 150.0 with the mic behind the seat. Well yesterday I took my ported box at 1.75ft^3 per woofer with the subs in their own separate chambers to a shop and got it metered. On the dash it did a 138.8, in the port it was around 155-156db's. I know there are people getting much higher numbers out of the L7's. I'm limited on room in my single cab truck and I can't get my parents to let me cut the bed. I cant get a bigger box, the only option I see is maybe more power, but thats not gonna increase my score very much. What can I do? What am I doing wrong? 138.8 was very dissapointing. My friend has an extra cab toyota with 3 pioneer IMPP 12's in a sealed box and does a 148-149 consistently. I should be hitting higher, what did I do wrong?



    Matt Sibley
    Dad, Electrical Engineer, MBA

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    khi
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    155, 156 isnt loud enough for you..? :o


    yer insane


    hehe

    jj




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    F150Matt's Avatar
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    thats with the mic in the port, I wish it was on the dash, then I would be more than satisfied. I want to be between 145-150 on the dash, and 138.8 isn't cutting it. HELP ME PLEASE!



    Matt Sibley
    Dad, Electrical Engineer, MBA

    Used to do these:
    Team S.P.E.A.D. Captain
    Team Kicker
    Team Maxxsonics
    USACi Pro Stock 5001+ World Record Holder

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    violator5spd's Avatar
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    What are your ports tuned to?



    - John (AIM - ViolatorJF)

    2000 Dodge Neon

    DEH-P9300, JBL BP600.1, eD15A.22 in 2.5^3ft sealed

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    bumpin_blazer's Avatar
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    i talked to him earlier it's like a 40somethin tune port. when his car res. freq. is like 55hz. i told him to rebuld a box to that freq. and it would do MUCH better for him.

    adam



    2006 Bright Island Blue 6s: stock 6 disc in dash, Hertz Hi-Energy 6.5" comps, MB Quart Ref 12", eclipse 5-channel sub amp.

    Car mods: Lowered on Mazdaspeed springs with Koni Yellow shocks, Racing beat front/rear sway bars with AWR end links, LED turn signals, tail lights, front side markers, 18" ADR Cypher rims, 55w HID's in low beam and fogs, 5% tint all the way around. No go fast mods yet...tuning and Mazda6 don't go well together .

    Steve a.k.a. ss3079: So this one lady goes, "These ignorant people who drive around blasting there music, they cant hear emergency vehicles"
    So that set me off, and I said "Well then why do they let deaf people drive?"

    AOL: JmKeenen

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    violator5spd's Avatar
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    yes indeed



    - John (AIM - ViolatorJF)

    2000 Dodge Neon

    DEH-P9300, JBL BP600.1, eD15A.22 in 2.5^3ft sealed

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    bumpin_blazer's Avatar
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    that is what i thought b/c my single L5 15" was a 48hz and my car's res. freq. is like 52hz so it was close enough to hit hella hard.

    adam



    2006 Bright Island Blue 6s: stock 6 disc in dash, Hertz Hi-Energy 6.5" comps, MB Quart Ref 12", eclipse 5-channel sub amp.

    Car mods: Lowered on Mazdaspeed springs with Koni Yellow shocks, Racing beat front/rear sway bars with AWR end links, LED turn signals, tail lights, front side markers, 18" ADR Cypher rims, 55w HID's in low beam and fogs, 5% tint all the way around. No go fast mods yet...tuning and Mazda6 don't go well together .

    Steve a.k.a. ss3079: So this one lady goes, "These ignorant people who drive around blasting there music, they cant hear emergency vehicles"
    So that set me off, and I said "Well then why do they let deaf people drive?"

    AOL: JmKeenen

  8. #8
    violator5spd's Avatar
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    btw, nice score on that...im getting some L7 10's and im hoping for 150's



    - John (AIM - ViolatorJF)

    2000 Dodge Neon

    DEH-P9300, JBL BP600.1, eD15A.22 in 2.5^3ft sealed

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    bumpin_blazer's Avatar
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    not to mention it was dual 4ohm getting 750rms not the fulll 1000 off my amp.

    adam



    2006 Bright Island Blue 6s: stock 6 disc in dash, Hertz Hi-Energy 6.5" comps, MB Quart Ref 12", eclipse 5-channel sub amp.

    Car mods: Lowered on Mazdaspeed springs with Koni Yellow shocks, Racing beat front/rear sway bars with AWR end links, LED turn signals, tail lights, front side markers, 18" ADR Cypher rims, 55w HID's in low beam and fogs, 5% tint all the way around. No go fast mods yet...tuning and Mazda6 don't go well together .

    Steve a.k.a. ss3079: So this one lady goes, "These ignorant people who drive around blasting there music, they cant hear emergency vehicles"
    So that set me off, and I said "Well then why do they let deaf people drive?"

    AOL: JmKeenen

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    violator5spd's Avatar
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    in that case, perhaps i should be expecting 150's



    - John (AIM - ViolatorJF)

    2000 Dodge Neon

    DEH-P9300, JBL BP600.1, eD15A.22 in 2.5^3ft sealed

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    don't count on it unless your a very good box builder and have a ton of sound deadener. i have over 100ft of dynamat xtreme in my car not to mention my box was sealed tighter than a virgin.

    adam



    2006 Bright Island Blue 6s: stock 6 disc in dash, Hertz Hi-Energy 6.5" comps, MB Quart Ref 12", eclipse 5-channel sub amp.

    Car mods: Lowered on Mazdaspeed springs with Koni Yellow shocks, Racing beat front/rear sway bars with AWR end links, LED turn signals, tail lights, front side markers, 18" ADR Cypher rims, 55w HID's in low beam and fogs, 5% tint all the way around. No go fast mods yet...tuning and Mazda6 don't go well together .

    Steve a.k.a. ss3079: So this one lady goes, "These ignorant people who drive around blasting there music, they cant hear emergency vehicles"
    So that set me off, and I said "Well then why do they let deaf people drive?"

    AOL: JmKeenen

  12. #12
    violator5spd's Avatar
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    im working on the dynamat as we speak. as for the box, a friend of mine is a good box builder and said he would build me a 4^3 ported box however i'd like it for $50 so i said hell yeah.



    - John (AIM - ViolatorJF)

    2000 Dodge Neon

    DEH-P9300, JBL BP600.1, eD15A.22 in 2.5^3ft sealed

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    still in a neon right with a trunk?? i don't think that will be that good of a box no offense i know a drum of fiberglass resin at home depot is like 20bucks and you need a gallon of it at least to seal a 4cuft. box. plus in a trunk 150's on dash good luck a guy here had 2 15"s in a trunk doing like 149 on the dash with 2kw of power.

    adam



    2006 Bright Island Blue 6s: stock 6 disc in dash, Hertz Hi-Energy 6.5" comps, MB Quart Ref 12", eclipse 5-channel sub amp.

    Car mods: Lowered on Mazdaspeed springs with Koni Yellow shocks, Racing beat front/rear sway bars with AWR end links, LED turn signals, tail lights, front side markers, 18" ADR Cypher rims, 55w HID's in low beam and fogs, 5% tint all the way around. No go fast mods yet...tuning and Mazda6 don't go well together .

    Steve a.k.a. ss3079: So this one lady goes, "These ignorant people who drive around blasting there music, they cant hear emergency vehicles"
    So that set me off, and I said "Well then why do they let deaf people drive?"

    AOL: JmKeenen

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    violator5spd's Avatar
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    whoops

    i wasnt talking about 150 on the dash, i meant at the ports...yea i agree though 150 on the dash for me would be quite a trick. my best friend has a 02' neon with 3 L5's and he's in the mid 140's



    - John (AIM - ViolatorJF)

    2000 Dodge Neon

    DEH-P9300, JBL BP600.1, eD15A.22 in 2.5^3ft sealed

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    bumpin_blazer's Avatar
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    yeah with a trunk it's really hard blessing of an SUV.

    adam



    2006 Bright Island Blue 6s: stock 6 disc in dash, Hertz Hi-Energy 6.5" comps, MB Quart Ref 12", eclipse 5-channel sub amp.

    Car mods: Lowered on Mazdaspeed springs with Koni Yellow shocks, Racing beat front/rear sway bars with AWR end links, LED turn signals, tail lights, front side markers, 18" ADR Cypher rims, 55w HID's in low beam and fogs, 5% tint all the way around. No go fast mods yet...tuning and Mazda6 don't go well together .

    Steve a.k.a. ss3079: So this one lady goes, "These ignorant people who drive around blasting there music, they cant hear emergency vehicles"
    So that set me off, and I said "Well then why do they let deaf people drive?"

    AOL: JmKeenen

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