TIP31 Sound Reactive LEDs in a HAF 932 Advanced Case

This PC case lighting mod’s for those who find CCFLs too harsh and CCFL sound activated modules marginally effective. I need to tidy up some wires, but the point of this video is the lighting, not the case wiring, so.... Mods: Hardware-hacked 140mm Enermax TB Apollish rear fan. Power to the LED array has been separated from the power to the fan. Its LED array is driven by a sound reactive TIP31-based NPN transistor circuit tied to the left audio channel. Edge lit cast acrylic motherboard