A little tuning help please - AVS Forum
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post #1 of 8 Old 12-22-2013, 08:11 PM - Thread Starter
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I bought a bassworx dual 12" ported box that has 1.65 cu ft or 46.7liters volume depending on your preference and it says is has tuning of 42hz.

For the box I have MB Quartz 304 and the specs are found in this PDF. http://www.mbquart.com/manuals/subwoofers/mb_quart_onyx_owc_subwoofer_manual.pdf

What would be a good frequency range to run for mid bass? Not looking for shake the ground sub effect. More drums and low guitar etc.

Any help would be appreciated

Jeff

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post #2 of 8 Old 12-22-2013, 08:53 PM - Thread Starter
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I'm going to change what I'm asking. I don't need 80hz and lower. What would be the frequency response of these speakers in that box? Could I run them 100-400?

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post #3 of 8 Old 12-24-2013, 09:01 AM
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You could try. Going to need active crossover capability somewhere.

Are you doing this in a car? If so what is going to take care of the under 100 hertz?

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post #4 of 8 Old 12-24-2013, 11:33 AM - Thread Starter
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I have 2 18's for sub duty. 20 8's for bass. Just wanting more drum punch, so I'm putting these on an unused channel on my mini dsp where I can tune the exact frequencies for just that. Power would be from one channel of an EP4000 amp. A total of 8 of these 12's to fill that void in my home theatre.

Because I'm using car subs and sub boxes I figured I'd ask the gurus in car audio smile.gif

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post #5 of 8 Old 12-24-2013, 05:25 PM
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No need to ask car guys. It's not the brand of woof, it's application.

I am wondering that with so many 8's (20 yikes!) you have some sort of cancellation going on. Something out of phase. Plus running the twelves mono, in the midbass to lower midrange, might also cause some issues.

Anyway, sure it could be done. Use some foam rubber to seal the port of the enclosure. Run them sealed.

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post #6 of 8 Old 12-28-2013, 11:09 AM - Thread Starter
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Why do you recommend sealed?

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post #7 of 8 Old 12-29-2013, 05:54 PM
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Because you mentioned that you were wanting to run them 100-400. Since your enclosure is ported and tuned to 42 hertz, I was trying to eliminate any effect the enclosure might have on the overall frequency response if any.

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post #8 of 8 Old 12-30-2013, 08:42 AM - Thread Starter
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Thank you for explaining that. I get it.

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