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Old 8th July 2011, 06:29 PM   #11
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#3. If you want a high frequency cut off of 30 hz, then you best go line level as the cost of the materials will be too much with caps and coils at speaker level. This is a lot lower than most persons choose. What are the specs of your driver?
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Old 8th July 2011, 06:34 PM   #12
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aw im realy noob at this... here's the spec sir power handling 400watts impedance 4 Ohms sensitivity 90db @ 1w 1m freq. res. 30hz -5 khz...

i will follow your suggestion sir Cal Weldon
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Old 8th July 2011, 06:48 PM   #13
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Ok, this makes more sense. You don't want to cut this off at 30 hertz, more likely around 100. You know I think since you already have another amplifier that you need something like this:
Reckhorn.com
It's relatively cheap for what you get. Can you tell us what the amplifier you are going to use is? You have a preamp to run both amplifiers?
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Old 8th July 2011, 06:54 PM   #14
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i dont have preamp sir Cal Weldon...
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Old 8th July 2011, 06:59 PM   #15
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I am getting a bit of a complex being called sir. Please refer to me as Cal or Gordon.

If you are not familiar with the inside of an amplifier then a PLLXO might be out of the question so now we need to find you a parts store that sell big caps and coils. Too bad, this is going to get expensive. Do you have any other info on the speakers? What make and model are they? We need some more specs.
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Old 8th July 2011, 07:17 PM   #16
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This is about as affordable as we can make it for you. If you have one woofer you'll need one of these run in series
Erse Super Q 13mH 16 AWG 500W Inductor
and three of these run in parallel, shunting the woofer
68uF 100V Non-Polarized Capacitor
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Old 8th July 2011, 07:19 PM   #17
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targa x-120-i DVC... umh how about this caps are they usable? Cal ImageShack® - Online Photo and Video Hosting
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Old 8th July 2011, 07:27 PM   #18
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No those caps are not usable.

The woofer you have is a DVC that means you will need 2 coils and 6 caps. You also have to make sure your amp is happy with 4 ohms. Is this a separate amp from the main speakers or are you try to use the B speaker switch?

Is this in a car?
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Old 8th July 2011, 07:39 PM   #19
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Cal Weldon.. its a separate amp from the speaker....what is a b speaker switch? what caps do i need and coils? not in car.....
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Old 8th July 2011, 07:51 PM   #20
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How do you run your source through two amps without a preamp?
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