Hi, I'm thinking about building a sub in the smallest possible enclosure and i stumbled on this: ELF Subwoofer.
Basically, a sub unit (or more) ar put in a very small enclossure so that the resonant frequency is driven up over the crossover point.
Then the sub is equalized using a Linkwitz transform circuit.
This kind of projec requires LOTS of power (~250 W per driver at medium efficiency) and a unit that is capable of low distortions and good excursions.
I was thinking that a PA oriented sub would be ideal for this kind of project because they tend to be:
a) able to withstand abuse and come back asking for more.
b) very efficient, wich helps reducing power requirements.
I was thinking about 12" (maybe 2 units) or 15" (only one, cause it would be too big).
So, what units would you use for this project?
Basically, a sub unit (or more) ar put in a very small enclossure so that the resonant frequency is driven up over the crossover point.
Then the sub is equalized using a Linkwitz transform circuit.
This kind of projec requires LOTS of power (~250 W per driver at medium efficiency) and a unit that is capable of low distortions and good excursions.
I was thinking that a PA oriented sub would be ideal for this kind of project because they tend to be:
a) able to withstand abuse and come back asking for more.
b) very efficient, wich helps reducing power requirements.
I was thinking about 12" (maybe 2 units) or 15" (only one, cause it would be too big).
So, what units would you use for this project?
A linkwitz Transform is not used for this application, the double-integrator is, it's all in the article. It is possible to use a Linkwitz Transform, but you would not do it quite this way.
A PA driver would not be ideal for this as they have low Xmax and high Fs. There are dedicated sub-woofer drivers on the market that would be better choices.
A PA driver would not be ideal for this as they have low Xmax and high Fs. There are dedicated sub-woofer drivers on the market that would be better choices.
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