Giant Subwoofer Video

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Published 2014-03-11

This was a demonstration built by graduate students at the University of Wisconsin -Madison in 2011. It's purpose was to be physically large so elementary school kids could look inside while it was running and illustrate the how a speaker works on a grand scale (hence a transparent cone). Although powerful, it was not designed to be competitive with state of the art sub woofer systems or be high audio quality. Documentation of the build process may be found at: ludoislabs.com/giant-speaker/

All Comments (21)

@JakHart 3 years ago

The sad thing about this woofer, is that unless we were in it's presence, none of us can truly appreciate it.
@michaeldonoghue9015 1 year ago

I’m glad these guys spent all this time and effort, recorded it, and uploaded it to YouTube so I could listen to it quietly on my iPhone in a room where the air conditioner is louder than this audio.
@davidschnabel6744 7 months ago

It’s almost like I’m watching back to the future for the first time again. Sweet build. You are the man!!
@nmbr1ctrman 1 year ago

Seems like you’d need an insane amount of rigidity for such a loud speaker to reproduce accurately
@Aruesx 3 years ago

When your wife says only 1 sub in your car
@maxmaynor8786 3 years ago

Nobody: honda civics at 3am. 😂
@Mastermind8908 8 months ago

The words "Hello, Mcfly!" come to mind.
@Corey_Otis 1 year ago

I was honestly interested in how far you've came since this as Graduate student. I see your an Associate Professor now and gotta say that's pretty amazing.
@zeguyy 3 years ago

"what's the max RMS input power of that sub?" "about 2Hp"
@stevefick3919 3 years ago

I was waiting to see Michael J. Fox come flying across the room!
@dmitryfrolov4370 8 months ago

This is the very moment when the amplifier should have been designed in a “back to the future” style.
@jdmtechllc6589 8 months ago

Great Scott… that woofer seems capable of producing 1.21 Jiggawatts and tearing the very fabric of the time space continuum while blowing every ear drum from here and now back to 1985
@tomclanys 2 years ago

I think it's effectively a small subwoofer, just because of how weak the membrane is. It moves just the inner part, while the rest is bending instead of moving in the same way.
@gaptoofgranny 9 years ago

Did anyone else suddenly remember that amp scene from back to the future when they saw this?
@shilomangan9674 1 year ago

it would be nice to see all the sensor readings spec's , pressure reading's etc ,etc. Awesome job U freaky Creators- The World needs more people like yall in it.
@jaakkopontinen 1 year ago

An open flame or a smoke trail in front would aid in perceiving the power :) Awesome rig.
@totem168 8 years ago

wow, back to future speaker
@monkeymafia729 8 years ago

Just wait till some ricer finds a way to fit this into their car...
@h2oesmad 1 year ago

It's insane because I got to see this exact sub doing it's groove in school once.
@ducamuk 1 year ago

Straight up Back to the future setup right there.