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  1. #1
    MR_LOWRIDER's Avatar
    MR_LOWRIDER is offline junior spl'r



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    Earthquake Subs

    Just for a buzz i was wondering if earthquake subs are any good because i never hear people talk about them much and there brochure claims you are garanteed to win trophies whith all of there subs,whats up with that ****.Later



    SONY CD HU
    JBL GTO 6.5"/1" TWEETS
    JBL 4x6's
    SONY CLASS D AMP
    NO SUB(soon to come)




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    ive had JL and rockford, and kicker, and right now i have a Earthquake DBX15D-1000watts max dual 3" VC. 160oz mag. 2nd. top of the line sub from earthquake. But let me tell u. It hits harder that any subs i had, and heard around here. There more of a SPL sub though.




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    bumpin_blazer's Avatar
    bumpin_blazer is offline Only the Strong Survive



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    yeah earthquake will bump hard, but their subs sound more like a burp then a tight bass note. i personally think their subs are crap but their amps now there are some good amps. lots of power and they put out more than they say.

    keep it thumpin,
    adam




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    MR_LOWRIDER's Avatar
    MR_LOWRIDER is offline junior spl'r

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    Oh so they have no sq at all but are real good db hitters,I don't understand why company's make subs with odd ohms,like 3 and 1.5 and ****.



    SONY CD HU
    JBL GTO 6.5"/1" TWEETS
    JBL 4x6's
    SONY CLASS D AMP
    NO SUB(soon to come)

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    bumpin_blazer's Avatar
    bumpin_blazer is offline Only the Strong Survive



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    you know that is a question that is like "what came first the chicken or the egg??" honestly i don't htink anyone will know the answer to that, i think people should stick to 2,4,6, or 8 ohms. that way it is easier to figure out what the ohm load will come out too. but that is just me, and yeah certain subs totally lack any kind of sq and pound out spl, the biggest example of this is the MTX RFL nothing but spl and frankly not worth the money.

    keep it thumpin,
    adam




  6. #6
    MR_LOWRIDER's Avatar
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    The chicken came first but anyways...Do earthquake subs have really bad sq or just poor sq like audiobahn subs?And are there subs affordable?



    SONY CD HU
    JBL GTO 6.5"/1" TWEETS
    JBL 4x6's
    SONY CLASS D AMP
    NO SUB(soon to come)

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    dbhittin's Avatar
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    I think they have ok SQ. But there subs are pretty cheap,but can be spendy. Which model are u looking at. magmas,DBX,Balls,LS




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    MR_LOWRIDER's Avatar
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    The magma 15,What price are they in bc and have you seen this sub in action?



    SONY CD HU
    JBL GTO 6.5"/1" TWEETS
    JBL 4x6's
    SONY CLASS D AMP
    NO SUB(soon to come)

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    dbhittin's Avatar
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    Ok there magma 15" is there top of the line sub. U should hit with the Bass Head design box and a big amp. 140+dB's. I have the next model down. The DBX15. The magmas are dual 3ohm subs.so u would need a 1ohm stable amp. they are 1000watts max and can handle alot more. go to www.caraudiocrazy.com. There cheap there and u get warranty. Thats were i got my sub.




  10. #10
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    One reason for weird impedances on the voice coils is that you can use less # of subs to get a lower impedance so you can drive your amp harder. If you got a high quality amp, it will just put out more power. Another reason for the voice coils to be weird ohms is that it affects the inductance values and thus ultimately affecting the damping characterstics of the electrical system of the sub. This is known as Qes. Ideally someone would want a low Qes. From what it seems, lower impedance voice coils make lower Qes. Don't ask me why, I don't know, I"m not a super electrical engineer, it's just what I've observed.

    When a sub has lower Qes, it makes the Qts smaller which makes the Qtc smaller. When a sub has a small Qtc, it will sound "tighter" and play deeper. At least in theory.




  11. #11
    BassiKLowZ's Avatar
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    I would take the juggernauts over Magmas anyday




  12. #12
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    I just learned about Q values in class today. In a nut shell, a lower Q produces a longer frequency, thus a lower bass, and visa versa. I think this is how a crossover works but I'm not quite sure. I don't pay attention in class I'm just puttin in my 2 cents.

    I have to draw sin waves for **** like this, I hate it. Don't take electrical construction in college!!!




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