800watt, 12' long 16" diameter Bass Cannon.

Step 5 Wire up and test.

Thats the majority of the work done!

I made a stand for the whole thing to stand on, but this was an error. The resistance of the bass cannon standing close to the ground created back pressures that introduced some unwanted characteristics.. nasty resonances that caused humming and nasty distortions.

This should always be mounted with plenty of room beyond either end of the tube.

Finally is a pic of the bass cannon in situ on the playa with the remainder of the paraphenalia attached..

See a full description here;
http://fle33.com/public/content/view/5/2/

Comments

[hottamaleindustries]

Let the Bass Cannon kick it!

[akura2]

Whenever I've seen the Bose Wave Cannon mounted, it's always been hanging from the ceiling horizontally... I think that having it stand vertically like this would affect the sound output negatively by creating pressure waves against the ground

Great job though... I've always wanted to make one if these... since at least 1989 (they had two of these at my college student center auditorium)... they even have one at the Local Fry's Electronics mounted hanging from the ceiling under a suspended projector screen....

[FastEd88]

Now build 4 or 5 or 6  of them each tuned to the string resonace of a bass guitar and you could rock the neighborhood!

17Hz , 31Hz , 41Hz , 55Hz , 73Hz , 98Hz

Fast Ed

[ChicSpandex]

Actually, the concept is quite old, I believe from the 1800s. I don't remember what it's called. It was discovered that a grid of heated wire at the right place created a large sound at the resonant frequency of the tube.

[ruffboy]

What made the rings of light? We make Sonotubes in Texas. If you will start marketing these canons it may help our business.

[Da Nugesta]

hey don't it will hurt the original designer! to make money out of his exact design!

[fwater]

BOSE is known as a company that will try to sue the sh*t out of anyone who publicly criticizes any of their designs or copies anything that they have produced. This particular arrangement is un-patentable because of it's standard arrangement, i.e., the Hemholz family can't sue anyone for producing a ported woofer cabinet. BOSE is a deplorable company for their misleading or outright untrue performance claims. Their cheap but expensive equipment and lousy performance vs. almost any competitor speaks for itself. Ask any speaker DIY'er.

[grinddrummer]

Do you have audio footage of this?

[NastySpill]

Unfortunately my video camera died right as I set it up..

[grinddrummer]

Aw bummer!!! Awesome project!!!

[peterlonz]

Fabulous project, breathtaking in concept & well executed. BUT you don't tell us here how you can practically use it. I would have expected that as it's a fixed frequency device ( resonce controlled) it's of interest only for making a huge mototonal noise. I can't see how pipe organ music could be enjoyed with such a device. More reporting of use please! Peter O

[NastySpill]

Hi Peter, In short its a sub woofer. Used in PA system Installations like any other bass bin enclosure. Using a suitable lowpass or bandpass filter it can come into effect only on frequencies it is suitable for.

[Da Nugesta]

is a bandpass or lowpass basically a low frequency crossover

[NastySpill]

A band pass filter lets a band of frequencies pass such as 300hz to 15,000 hz, which you might send to a midrange speaker. a low pass filter only passes low frequencies and a high pass only passes high frequencies.. Your right - a crossover is exactly that. A lowpass and a highpass.. so that the signal is split into two streams.

[Da Nugesta]

ok thanks

[Spedy]

I'm pretty sure it can produce many tones at multiples of the basic resonant frequency. 2x, 3x, 4x ect.. Anyway, very cool project. It's something I'd build if I had the patience/money/time :]

[downeasta]

Wow! When I first saw it I thought how bad it would be to be your neighbor.. but after you added the spinning light organ even old cranky me had to admit that it is a very cool rig! I'd love to hear/see it. I'd try Saint-Saëns, Organ Symphony #3. (attached) The "16 foot stop" low notes would be just mind blowing if not metal bending! Please let me know if you try it. http://www.youtube.com/watch?v=0d0itDEs9uo

[NastySpill]

Yes that would be special!! I don't what what the dity is called, but the dracula music would be my choice. The analogy I use is suitable here - a tuned pipe organ. They are deisnged to resonate at a specific frequency - same as my system, however mine becomes less efficient at neighbouring frequencies. Thanks.

[bears0]

use audacity to increase the bass also then it would probably be ear piercing

[Martinmayhem]

Awesome! I'd love to here that thing at full tilt! What music do you like to play through it?