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Subwoofer advise needed...

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nervewrecker
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Re: Subwoofer advise needed...

Postby nervewrecker » January 9th, 2020, 9:58 pm

carluva wrote:I've been reading this thread intently.

Question... How do you know the frequency that your sub is actually outputting or being tuned for? Some piece of equipment used to measure?


The sub will play what you send to it.

The crossover allows you to filter out a certain range. A certain range under what you want it to play low pass filter) and over what you want it to play (subsonic filter).

Ported boxes allow for "tuning" where for lack of a better explanation you allow it to shine around a certain region, that region will be where its "tuned" for.

As sais before, its not a one size fits all. You can play around to get different results and different vehicles have different acoustics.

What I did on my 5100ub, I bumped up the 50hz band to get the thump from the midbass and crossed lower like approx 35hz on the amp. Then I raised the output on the deck to bump up the lower range and attenuate the thump at the higher more audible frequencies so I had a better response overall. That was with a 15" sub so cone area allowed me to get low easy. Of course, I went easy on the output so I dont destroy it.

When I got the 80prs I just crossed at 31.5hz and done. Had the JBL speakers then so they thumped easy and then exodus anarchy.

So basically I filtered out the higher frequencies and raised the lower ones a bit to make up for where I lacked.

It not the same with 12" or with another vehicle as I had bought a pickup and limited to what I can do without cabin gain.






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Rovin
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Re: Subwoofer advise needed...

Postby Rovin » January 10th, 2020, 12:23 pm

basically u check\tailor ur sub freq output response on software & design d enclosure according to d sub or what u want out of it ... this is a short way of describing it

like i said on here a dozen times b4 - model ur sub on software b4 u make a purchase , plenty ppl put d cart b4 d horse then wondering what to do after when their expectations are not met

however d stock vehicle itself will normally have a peaky region , u can check it with a good RTA or spl meter will tell u that too , u can alter this somewhat with sound deadening & other dampening materials , u can also then equalize &\or alter ur crossover points to get d response a lil flatter\more neutral ...

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X_Factor
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Re: Subwoofer advise needed...

Postby X_Factor » January 11th, 2020, 8:26 am

RTA or i believe SMD IM-SG device does that as well

kavaninho
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Re: Subwoofer advise needed...

Postby kavaninho » January 11th, 2020, 11:14 am

So when we seeing the build pics?

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wheel whores
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Re: Subwoofer advise needed...

Postby wheel whores » January 13th, 2020, 7:31 pm

Got this 10" hoping it go sound good.....
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rollingstock
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Re: Subwoofer advise needed...

Postby rollingstock » January 13th, 2020, 8:39 pm

Morel or jbl?

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wheel whores
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Re: Subwoofer advise needed...

Postby wheel whores » January 13th, 2020, 11:04 pm

Morel...

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Ted_v2
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Re: Subwoofer advise needed...

Postby Ted_v2 » January 16th, 2020, 7:09 pm

pappsss

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