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Reload Thread: how low do your 5.25" components go?

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    ClayMan's Avatar
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    how low do your 5.25" components go?

    I don't feel much bass from my Viper 550s. I'm obviously not expecting the 65Hz that it's rated at (though that would be nice), but I stop hearing changes in sound when I set the LP filter to 80Hz, or 100hz even. I'm interpreting that as the speakers are not giving me anything that low.

    The reason I'm concerned is that my stock rear speakers, powered off my head unit (versus 100+ watts/channel from an amp to the Vipers) seem to hit harder...

    I'm probably going to try some sine sweeps soon, figure out exactly where things start cutting off...







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    Re: how low do your 5.25" components go?

    Ever try putting those comps in a small enclosure like a kickpod? It usually makes the world of a difference.



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    Re: how low do your 5.25" components go?

    Unfortunately that's not possible.. I need my footrest so I must use the stock location, which supposedly isn't so bad - it's a relatively well-sealed kickpanel...

    Quote Originally Posted by mattj
    Ever try putting those comps in a small enclosure like a kickpod? It usually makes the world of a difference.




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    Re: how low do your 5.25" components go?

    Glass em in your door then. Or have someone else do it. With your options not open, they are going to stay the way they sound.



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    Re: how low do your 5.25" components go?

    I was hoping for an easier explanation... i.e.
    -damaged woofers
    -bad install (leak, needs MDF bracket?)
    -sound deadening ?

    either way... i just wanted to know how low other people's 5.25"s go, so I know how much potential there is, and if there's something *significantly* wrong with my install. At this point, I can't justify ripping apart my whole car again if it only gives me a couple Hz of extra extension...

    Quote Originally Posted by mattj
    Glass em in your door then. Or have someone else do it. With your options not open, they are going to stay the way they sound.




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    Re: how low do your 5.25" components go?

    How sound deadened is your door? Do you have the door completely sealed off? What type of baffle is the speaker mounted to (metal, plastic, wood)?

    You really should be getting close to atleast 80hz out of them, 100hz should be no problem. If you don't think you are, then there might be some install problems.




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    Re: how low do your 5.25" components go?

    mine are rated at 30hz, but has to be proper install not jus throwing em in the door, BUT i set the hpf on my 4ch so that i feel safe sending em more power

    jus an idea, get ur sub lpf at say 120hz and ur hpf at 120hz sound be fine (this is example, watever sounds best)



    Car - 04' Honda Civic Si, silver

    Deck - Clarion ProAudio DXZ835MP
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    Speaker Amp - MTX Thunder404
    Sub - 1x Rockford Fosgate RFP3412 ported box
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    Wiring - power/ground 4guage, speaker 16guage

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    Re: how low do your 5.25" components go?

    They're mounted in the stock kickpanel location of a BMW E36. It came stock with a foam-like covering in the "enclosure", so in theory it should be completely "sealed off". So no baffle... (The Vipers protrude outwards a lot, so there would be barely enough clarence for an ideal MDF baffle, if at all)

    The speakers are mounted by 4 screws poking through the foam-like deadener into the plastic retainers behind it.

    I believe I'm getting 100Hz. How much lower I'm not exactly sure yet. I'll be doing the sine wave tests this weekend...

    Quote Originally Posted by squeak9798
    How sound deadened is your door? Do you have the door completely sealed off? What type of baffle is the speaker mounted to (metal, plastic, wood)?

    You really should be getting close to atleast 80hz out of them, 100hz should be no problem. If you don't think you are, then there might be some install problems.




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    Re: how low do your 5.25" components go?

    Forgot to mention, that's the thing - no sub yet, otherwise I'd just let the sub handle it.

    I really want my front compoennts to get down to at least 80Hz though, I don't want all the bass to be coming from behind me... (bass starts to become unidirectoinal ~80Hz)

    Quote Originally Posted by desi_daru
    mine are rated at 30hz, but has to be proper install not jus throwing em in the door, BUT i set the hpf on my 4ch so that i feel safe sending em more power

    jus an idea, get ur sub lpf at say 120hz and ur hpf at 120hz sound be fine (this is example, watever sounds best)




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    Re: how low do your 5.25" components go?

    Quote Originally Posted by mattj
    Ever try putting those comps in a small enclosure like a kickpod? It usually makes the world of a difference.
    Not for lowend it doesnt, a small enclosure kills any bass. You want as big of an enclosure as possible, doors are great, just make sure you have a well sealed baffle to separate the waves. Kickpods are great for imaging and some kick to the upper midbass but NOT for lowend extension unless you port them low.




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    Re: how low do your 5.25" components go?

    Oh, just as an aside, does anyone know where I would find the freq. response graphs for my speakers? (DEI Viper 550.2)




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    Re: how low do your 5.25" components go?

    Quote Originally Posted by jujumantb
    Not for lowend it doesnt, a small enclosure kills any bass. You want as big of an enclosure as possible, doors are great, just make sure you have a well sealed baffle to separate the waves. Kickpods are great for imaging and some kick to the upper midbass but NOT for lowend extension unless you port them low.
    Yeah, most car speakers are designed for use in an IB enviornment, meaning a small enclosure will bump the Q way up there creating a lot of "peakyness" and no low end extension.




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    Re: how low do your 5.25" components go?

    Quote Originally Posted by ClayMan
    Oh, just as an aside, does anyone know where I would find the freq. response graphs for my speakers? (DEI Viper 550.2)
    Try contacting the manufacturer, but there is no guaranty that they will have any to provide to you.




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    Re: how low do your 5.25" components go?

    Quote Originally Posted by jujumantb
    Not for lowend it doesnt, a small enclosure kills any bass. You want as big of an enclosure as possible, doors are great, just make sure you have a well sealed baffle to separate the waves. Kickpods are great for imaging and some kick to the upper midbass but NOT for lowend extension unless you port them low.
    Why would you want <60hz coming from your mids anyways? Thats what a subwoofer is for. I told him to do kicks for that little extra bit of bass, not so he can have 3 6 mafia lows coming from his mids.



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    Re: how low do your 5.25" components go?

    Quote Originally Posted by ClayMan
    Oh, just as an aside, does anyone know where I would find the freq. response graphs for my speakers? (DEI Viper 550.2)
    Frequency response is determined by your vehicle and the area your drivers are in.



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