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Build an Infrasonic Subwoofer

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Step 9: Step 9

Picture of step 9
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Next, stain the wood and repeat again to get a rich color. If you would like to take the project one step further you can add 100 grams of bondo to the cone you can lower the frequency. To half the resonance double the cones mass. The Pyle's resonant frequency is 22 hz. We decided not to do this but it is certainly worth a try.
 
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noingwhat2 years ago
How do you find your driver's resonant freq?
Please would you tell us more about the (presumably LF audio) bazooka in the picture, apparently as a child's toy ? 

It looks like fun, but the warning gives the impression it could be considered an offensive weapon !
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