The display works fine, it's just not doing anything with an input. Maybe I will try just bridging the adjustment potentiometer. Now that I have solder paste and a toaster oven, if I can't get this to work, how much would an unassembled board and components be?
I just ordered the computer case I was planning on trying to put this into, yesterday. I plan on water cooling it, and if the radiator takes up too much space, then I can't put the analyzer into that case. I don't have any real way to grab an audio source internally while simultaneously outputting from the back, so it may just end up in a headphone amp, instead. That way the volume I will constantly adjust for the headphones, the analyzer will always get the same volume.