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bkolfo4

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Posts posted by bkolfo4

  1. Too much power kills a sub, and clipping the signal is one way of giving it a lot more power (up to 200% more) without it getting much louder. This problem by itself would not destroy speakers, but it would not sound good. It has the same problem at 1kHz which sounds reallllly bad.

    Wish this could be a sticky on every forum around, and people understood and believed it!

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  2. I was guessing AQ2200, but I am on my phone and cannot see the sig.

    That brings up the impedance question - I would assume you have D1's wired to 1 ohm. If you are going to run the 1500's strapped at 1 ohm (actual 0.5 per amp), I would say there is a 99% chance it will be louder, but do you want to do that?

    The better option would be to replace the 2200 with a 3500.

  3. I plan on getting two 12" AA aresenals and running them on a DX1000.1 at 2 ohms which is 1,000 watts RMS. They are going into a ported box, thoughts, suggestions, ideas. Thanks.

    from the things i've heard about em, you'll need much more power than a mere 1000 watts rms. I've got 1 vvx 12 and I'm putting that much power to that 1 sub

    Why is it everyone thinks you have to run 10000 watts to every sub for it to perform good?

    The sub is rated 500 watts. Telling someone it will not perform good at the power the manufacturer rated it at is ridiculous. . .

  4. A sub will break in, and if a sub has a spider setup that is stiffer than the triple joint can handle, then easing into it might not be a bad idea, but it should not be something that takes hours. . .

    I personally always got my best scores with fresh subs and Mayhems are super stiff. Never damaged one, so maybe they have a better triple joint.

    The thing that drives me nuts is someone who plays the sub at low volume for hours and then rips on it. It is not breaking in if it is not moving. It is not like an engine as people keep referencing. I am not here to argue engine break in, but an engine is different - if you take it easy on an engine for break in, the moving parts are still moving through their normal compete range of motion during that time. If you take is easy on a sub, it is not breaking in. It will remain stiff until you rip on it, so the time you spent playing it low was wasted.

  5. You might do well to learn the difference between Peak and RMS as well.

    To put it shortly: when an "RMS" signal clips you double your power to produce the "peak" result. That means if you are set for 3KW RMS then if you clip you could send upwards of 6KW to the subwoofer(s).

    You would have to clip to the point of producing a true square wave for this to be true.

    Yes you definitely increase the RMS power when clipping (that is what actually kills the speaker), but to get double would more than likely kill the amp too.

  6. If you are ever near Dallas, hit me up.

    I have NEVER heard bass compare to my IB. I have heard louder, but not as clean and deep.

    Funny, I figured out why I could not get below 12 Hz. Now I am down to 7-8 Hz. Can't hear it, but you can feel it and the house does not like it.

    Sorry, end of thread jack.

  7. Because your meter is reading DC resistance of the wire.

    Music, tones, etc. is AC. AC is an impedance. Since the voice coil has an inductance, and the cone has a resonant frequency, the impedance varies with frequency. The nominal impedance is based on an average impedance. It peaks at Fs, which many times is mistaken for this thing everyone calls "impedance rise". I could measure the true impedance of a sub at Fs sitting free air on a table using voltage vs. current, and everyone would start talkin about "table rise". :)

  8. keep in mind, the D2s are D1.4s and D1s are D.7s

    NO!!!!!!!!!!!!

    If you do not understand the difference between DC resistance and AC impedance, please don't make comments like this. The difference has been explained a million times.

    The subs are dual 1 and dual 2 ohm. And at Fs and on each side of the port tuning frequency, they are MUCH higher than that.

    PERIOD

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