This is the first attempt to play some music using this new ion wind blower. Yes, I did not try switching it on before pressing record. Well, I have set up the amplifier, though, it required some tweaks.

So I got some sound. But sparking is a big problem. The blower works very well at DC. But as soon as I start modulating the current with music, sparks appear. Disappointed =(

I'll try to figure out, what's going wrong. I suspect the sparking may be provoked by discharges around insulation of high-voltage wires that go to the amplifier.