That’s a neat Kickstarter project… The IN-9 Nixielyzer is an analog audio spectrum analyzer, based around an analog analyzer chip. It offers the display of six selective audio bands: 63 Hz, 150 Hz, 330 Hz, 1 kHz, 3.3 kHz and 10 kHz. As an extra feature, you can mix the signal of a build-in microphone to the display, to use the IN-9 Nixielyzer as a stand-alone device when no wired audio source is connected.

So Mr. Nixie has taken the EM800 Magilyzer and the former Nixielyzer kit, which is sold out, put them in a pot, added a hefty dose of the legendary Mr. Nixie Magic, and finally a new kit, the IN-9 Nixielyzer was created.