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40 Comments
- KevenM, on 04/30/2009, -0/+25Of all the songs they could have used to demonstrate this technology...
- bratterscain, on 05/01/2009, -0/+11The Tesla coils would be an awesome experience at an electronic music concert.
- zmigliozzi, on 05/01/2009, -0/+6I think I just nerdgasm'd.
- Shawno1, on 05/01/2009, -2/+7Daft Punk! Daft Punk! Daft Punk!
- celotil, on 05/01/2009, -0/+4Voltage? Nah, amperage baby.
We use a plasma cutter at work for cutting through stainless. It's powered by three-phase (anyone can take a hit from 450 volts) and uses 60 amps. A new copper tip and steady supply of air (ordinary air pumped from a compressor) gives beautifully clean cuts.
A dirty tip, a spot of water on the stainless, too much or too little air gap, forgetting to connect the earth ... molten metal shower!
And we use it by hand most of the time, like a welder. - BiggRanger, on 05/01/2009, -1/+5At 1:25 in the first video you see a hand behind the plasma speaker try and move it, after a big red flash the hand moves away quickly! You need a very high voltage to make plasma, hands don't like high voltage.
- sbcea, on 04/30/2009, -0/+4Very nice. I like the second video.
- waaan, on 05/01/2009, -0/+4Work it
- Liqkhaos, on 05/01/2009, -0/+3RTFA and you'd know they're $23,000+.
- sonicpentatonic, on 05/01/2009, -0/+3I read it as "sneakers". Imagine my confusion when I read they had "Plasma ion tweeters".
- jkleinrichert, on 05/01/2009, -0/+2you made a funny
- mrpunman, on 05/01/2009, -0/+2The second video is just shocking
- lazycat, on 05/01/2009, -2/+4How much?
- MM2Mud, on 05/01/2009, -0/+2http://209.85.173.132/search?q=cache:nOvUsf0LSMQJ: ...
- w1cked1, on 05/01/2009, -0/+2of course they vote you down but you're not wrong, it's deadly ***** and one of the biggest reasons why it never caught on.
- wcaclimbing, on 05/01/2009, -0/+2Make it
- mynameistux, on 05/01/2009, -0/+2never gonna give you up
- inactive, on 05/01/2009, -0/+2Lets see it play some black ***** metal!
- mattofasia, on 05/02/2009, -0/+1Do it.
- kd1s, on 05/01/2009, -1/+2How cool that he's running the Thompson Twins "Hold Me Now" on it. I loved them back in the day, still do now.
- hoffmann277, on 05/01/2009, -1/+2Good luck getting anything with an open arc by lawyers these days.
- inactive, on 05/01/2009, -0/+1Maybe my EE friend can make me one of these...
- w1cked1, on 05/01/2009, -2/+3Hope your welding is a world better than your electrical/physics
- airj1012, on 05/01/2009, -0/+1Looks awesome, but whats it really sound like. Any good?
- lazycat, on 05/01/2009, -0/+1How much? 0_O
- dbalaski, on 05/01/2009, -0/+1wow -- this is cool --
i wish the person posted their schematic for us to build one (the later one mentioned in the DYI section is nowhere near the same quality ) - jkleinrichert, on 05/01/2009, -0/+1video or it didn't happen
- absentmindedjwc, on 05/01/2009, -1/+1Love it, it reminds me of high school though (the maker of this video, Steve Ward, went to my high school, graduated 2 years before me)
- w1cked1, on 05/01/2009, -0/+0Yeah, but if you do it like a dumb ass you'll have a nice UV burn, if you're lucky. Turn the ARC off and light it off the hot tip with your face away from it.
- w1cked1, on 05/01/2009, -0/+0The ones I"ve seen (online) have shown themselves as bright, artificial and dimensionless sounding. It's true of course the air is modulated with ease via the heat of the arc which does away with all known mechanical issues other speakers have, but there's perhaps more.
In this instance the guy is using a flyback power supply to create the high voltage (same as used to power a CRT tube and to over 1000 volts). Such a thing has its uses but modulating audio with precision and accuracy is not one of them. This would no doubt be open loop, so no corrective feedback. It's a demonstration of the concept and little else.
Good ones for $20k probably use tubes or some method allowing them to more cleanly and accurate modulate the arc, either with feedback or with an extremely clean open loop amplifier and hopefully take every measure to minimize non linearities every step along the way. You could even argue a passing breeze would affect the arc enough to at least skew the stereo focal point, where a regular tweety would be superior in that respect.
My main issue with one as seen here is I now the method used is creating a boat load of ultra sonic noise, which finds its way back into the system with ease, increasing the noise floor and distortion artifacts. Even the ultrasonic noise itself can potentially have a direct effect on your senses and perception even if you don't hear it directly, enough to stress you out. - kingamoon, on 05/01/2009, -1/+1WTF ... You have a problem with Mario!
- Gibletoid, on 05/01/2009, -0/+0Can I light my doobies off of them when my lighter, followed by my toaster, have died?
- Boatsonline, on 09/29/2009, -0/+0These are fantstic speakers, we have recently put a set on our boat http://www.boat4u.com.au
- nadadingsda, on 05/01/2009, -1/+1Yeah cool... but only if you like the smell of ozone.
- Centreti, on 05/01/2009, -2/+1really lame song but the technology is so full of win!!!
- w1cked1, on 05/01/2009, -1/+0Coolest singing arc I've ever seen... you can see why
http://www.youtube.com/watch?v=CdHAEeico5A&fea ... - Eurynom0s, on 05/01/2009, -3/+1Okay? The point stands that the site crashed after only 89 diggs.
- M4niac4l, on 05/01/2009, -3/+1Amazing sound and a bit of ozone for the (previously healthy) lungs! sounds good to me.
- slyzxx, on 05/01/2009, -3/+1ehh its 111 now budddyyy
- Eurynom0s, on 05/01/2009, -6/+2WTF? 89 diggs and the site's already crashed.
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