The ARC Plasma Speaker
Plasma speakers are nothing new to science geeks, but the guys at ExcelPhysics are making them accessible to anyone. The kits reproduce sound by modulating a high voltage electrical arc. Just plug in your audio source, and zap away!
Crowdfunded projects pose a degree of risk for buyers, so be sure to do your research and fully read the seller's detailed description and production plans before plunking down your hard-earned money.
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