View Poll Results: Do you compete or are you interested in competing?

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  • Yes, I compete in SPL

    6 9.09%
  • Yes, I compete in SQ

    3 4.55%
  • Not yet, I'm wanting to compete in SPL

    7 10.61%
  • Not yet, I'm wanting to compete in SQ

    13 19.70%
  • Why in the hell would you ever want to compete in any of it?

    37 56.06%
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Thread: Do you compete or are you wanting to compete?

  1. #91
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    Quote Originally Posted by turbocad6
    the guy who built this truck is no pro, not by a long shot... he's a maintanance worker & did all the work himself with the system... I give him props for his dedication & effort...
    HELL YEA!

    that's what I like to see!

    much props to him for it then!


    he now has desires to hit more real shows, & I know when he does he will see that he's not going to be all that compared to what's out there..
    no, probably not, but we all start somewhere, and that's what it took for me to see what I needed to do to get serious, and wow, that was a mistake...lol

    I don't have a lot of experience tunning for max spl as this has never been a desire for me personally, but to help guide him, what is the best way to determine what the target resonant frequency would be for his truck?
    There are many more scientific ways to do it, but what we did in my car was to just put a cheapy mic in there, and start playing with different frequencies.

    We built the port to be removeable and to be overly long. We hit a few frequencies, found where it was loudest, pulled the port, made some modifications, put it back in, played the frequencies again, noticed the difference, cut some more, wash, rinse, repeat. Once we cut it too short, and found a drop in the SPL, we built it again and went from there.

    This was a pretty archane way of doing it, but it worked for me at the time (small time wanna be as well). It got me to finals, where I hit a 149.8 and was in 13th place...lol

    I was seperated from first by a whole 6db.

    As for advice, I'll leave that to the bass junkies out there right now, I've been out of it too long...lol

    I STILL want to build one mad SPL vehicle...I wonder if I could get Focal to jump in on that

    hehehe

    also, stupid question, but how is it that fancy paint & excessive deadening hurt his score? is that a joke or are you really serious? I'm assuming your joking on that one, but asking anyway to see if there is something I'm missing...
    it's getting to the nitty gritty here but it is true.

    much like race teams pay good money for light paint on their vehicles.


    I do know that there is much more killer equiptment out there than w7's & jl 1000's, but for what they are they still impressed me... now I wish I could sit in a car that hit's in the 170's.... I'd love to know what that feels like....
    it's litterally chest pounding.

    you don't really want to sit in it, just being in the open door way is enough...lol

    it's enough to make my hair stand on end because there's so much air moving...
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  2. #92
    Super Moderator. If my typing sucks it's probably because I'm driving.... turbocad6's Avatar
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    I'm not argueing, just trying to understand.... I can see how paint can make a difference on a racecar, & i've done some projects on junior dragsters that paint weight & film thickness has been an issue to address, but I can't for the life of me figure out anyway the paint can make any difference with spl...

    I would have thought the more deadening the better, what, do spl vehicles actually take advantage of stuff resonating & vibrating? I just don't get that... I do a lot of custom paint, never though of it as a factor at all with the audio end of it....

  3. #93
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    no arguing on this end either!

    I know that in SPL, sometimes flex is a good thing, it is desired, other times it's not.
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  4. #94
    Super Moderator. If my typing sucks it's probably because I'm driving.... turbocad6's Avatar
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    is that were the paint is thought to make a difference? I wouldn't think it would make any difference at all.... can a few extra mill's of material difference in the paint coat really affect the spl? if that was true, could sanding a vehicle down & making it "thinner" help spl? these are factors I would have never imagined coming into play....

  5. #95
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    some people have gone so far as to rhino line their vehicles...I know that there are different trains of thought on both sides of the fence...

    perhaps someone with a little more current SPL experience can chime in?
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  6. #96
    Super Moderator. If my typing sucks it's probably because I'm driving.... turbocad6's Avatar
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    I really really wanted to tow my truck out to a bedliner place when I had it gutted to have it sprayed, but I was afraid it might not be as effective as dynamatting everything so I didn't spray it.... I always planned on having the whole underbody sprayed after the fact... just never got around to doing it....

    I always thought that even a spl vehicle will benifit from dampening...

  7. #97
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    and they do, to an extent, theres a fine line, just like in a SQ car, you can over deaden.
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  8. #98
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    Quote Originally Posted by Red GTi VR6
    woah there killer

    SPL is in no way more install focused than SQ. They are BOTH highly dependant on the install.
    ok, sorry. But consider building another box every other week, not for everyone. Once you win in sq, then what? You win in spl, you go home and tear it all out and try something different.

  9. #99
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    Quote Originally Posted by turbocad6
    I call it an spl vehicle because that's what he calls it & that's his intended use..

    the guy who built this truck is no pro, not by a long shot... he's a maintanance worker & did all the work himself with the system... I give him props for his dedication & effort... most of the customers I have with the baller trucks, filled with screens & rolling on asanti's & bags are drug dealers or just rich, but this guy is just a hard working joe(his names even joe ).. he skips vacations & still watches a 27" tube tv at home... he makes a lot of sacrifices to fullfill his passion with his truck

    I'm sure he doesn't even know what a resonant frequency is, let alone how to take advantage of it, & I'm sure he doesn't even know how to properly burp his truck for max reading... he is just a small time wanna be in the grand scheme of things, but this is part of what impressed me, that he could hit the 155 playing a bass track with off the shelf common equiptment...

    he now has desires to hit more real shows, & I know when he does he will see that he's not going to be all that compared to what's out there.. I don't have a lot of experience tunning for max spl as this has never been a desire for me personally, but to help guide him, what is the best way to determine what the target resonant frequency would be for his truck? I don't know how he calculated his ports or enclosure really & I don't know how far from optimal he is.... if someone here could tell me what advice to give him, or what to try to help increase his output I would gladly pass this along to him...

    also, stupid question, but how is it that fancy paint & excessive deadening hurt his score? is that a joke or are you really serious? I'm assuming your joking on that one, but asking anyway to see if there is something I'm missing...

    I do know that there is much more killer equiptment out there than w7's & jl 1000's, but for what they are they still impressed me... now I wish I could sit in a car that hit's in the 170's.... I'd love to know what that feels like....
    Wish I could quote all cool like you guys (and gals) do, not a big poster.

    I am a construction worker too, never worked in or got help from a shop, and only own one 27 inch tv also (just thought that was funny) wasn't bagging on the guy, I started with jl too.

    More often than not flex is good, leaking can be good, rattling panels are good, just thought I should point out the paint thing (actually goes for some body kits too) to prove a point, that spl is very unpredictable (that's why it is such a challenge), Not going to try to explain why it happens, if I (or anyone) understood spl, wouldn't be much of a competition.

    Not trying to play expert here, just posting interesting facts and good starter info for anyone who might have ever been curious, perhaps they will attend the next local show (promoting my sport). I will try to answer questions, but more than likely post links, because I am not trying to play expert (want a link on the paint thing?).

  10. #100
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    I have never had to do any resonant testing, I quit spl to focus on "bass race" but I can tell you what I know (and anyone interested) please don't take this as "the law", go to termpro.com, read and choose your own method, there are many.

    Red Gti mentioned one method, that I believe may be the most popular, except that you want to use a real mic at volume (resonant frequency changes with spl level).

    Others (that I would probably agree with) say that unless you first use a true butterworth sealed alignment enclosure and then mic the box outside the car, you are not actually finding your true freq.

    AND THEN, if that wasn't enough, flip your seats up and your visors down and it will change again (which is what some say paint does).

    Or, you can do what I did, and find enough people that have tested in your same make vehicle. Smaller cars, anything with a wall peak higher, bigger = lower.

    My nav, suburbans = low 40's, explorers = mid 50's , crx = mid 60's

    Must be ported, and don't tune box to res freq, but to PEAK at res freq (will be different).

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