Every once in a while I build something ridiculous, and this would be one of those whiles.
Ladies and Gentlemen of the internet, I present to you what I understand to be the world’s first Bass Cannon.
What is a “Bass Cannon” you might ask?
It’s a weapon of bass destruction. A party on your shoulders. Something to frizz your hair with. Something to peeve your neighbors.
It’s when you get when you take
- An AirZooka
- A pair of voice coils
- Miscellaneous analog parts
- A class D amplifier
- A lithium-polymer battery
- Birch plywood
- Threaded rod
- A physicist with too much time on his hands
And put them all together in a room with a soldering iron, and a laser cutter.
I’m not going to try to flaunt, nor will I make a step-by-step guide on how to construct one of these contraptions. That said, if you’d like to make a portable party for yourself, the above photos, and the below schematic should be enough to get you started!
In truth there’s not a whole lot of fancy engineering that went into this project. It’s a mono audio system with a pair of x-pass filters, a power amplifier and suitable drivers. It has no battery management or protection circuitry, though, that’s a simple thing to add if you do feel it to be absolutely necessary (hint; use a relay, a BJT, a zener diode, three 1% tolerance resistors and a comparator).
Two potentiometers set the channel gains for the the pair of first order filters; one high-pass for the midrange driver, and one low-pass for the woofer. A PYLE “PLPW8D” voice coil conveniently seats snugly within the case of the AirZooka, leaving just enough room for a mid-range driver to be placed in front of it with threaded rod as a support structure.
Initially I had concern as to whether or not this assembly would shake itself to bits upon use, but fortunately that was not the case.
Instead, it shakes the windows. ∎
u need a bigger speaker.
you know how heavy that would be, not to mention the kick it would have from the bass you wouldnt be able to hold it at all
I believe the smaller speaker is for midrange only, there is a second one in the cone. Nice job Adam! Party On.
Any chance of using a fog machine and making it really “shoot” bass?
That’s so cool! Some musical suggestions that I think would suite your awesome device:
So cool !
uhm what’s the fan for & how didya hook it up, it’s not in the instructions – I guessing it’s for “extra” air flow; ’cause the childs’ toy only has a membrane to “punch” the air?
I’m guessing, but I’d bet the fan cools the amplifier. It takes power to move the speaker. That power makes heat. Just guessing though…
I shall rebuild this. I shall use a case that’s built custom to allow recommended airflow specs for the subwoofer. Then I shall hook up a sound reactive light system to the outlet. Added will be a laser show target system. Rave cannon. She will meet you in battle. Or she would. If I wasn’t too broke to afford parts. XD
That is so awesome you should sell those. I would buy one. I’m too lazy to go through all those motions, work 60 hours a week and decided for stuff like this I just buy instead of spending the little free time I have.
an inspiration. i envision a two man boomzooka with slightly augmented specs and wireless input sync’d with a source, all stuffed into a 12 x 40 fiberboard tube equipped with a battery-powered fogger (e.g., Antari M1) for the effect john speaks, accented with a reactive fan/diode array to pop the fog on peaks. rave on friends.
Wow… I JUST saw this video. Truly fantastic. I can not only see it being sold to big bands but what of music waves as PROPULSION. How cool would it be to see a rocket lift off not with fire but to the sound of music. Maybe Speilberg was sort of on to something back when he made Close Encounters…. Seriously air/space travel via music/sound…THAT would be wicked!
When I see this, I think of a completely different application.