@Rcurl....nice idea. I saw a similar thing done recently with the good old LM3915 LED level meter chips to give 1dB increments instead of the usual 3dB. And I got some chips that generate and provide a notch filter for 2600Hz tones used in Radio keying systems, I was going to underclock them to get the notch down to 1000Hz. However in this case, according to Max's diagrams, the bands are fairly wide anyway, so I don't know if you'd really gain much here?
@David: "However that leads me to my question...with only 7 frequency bands and 2 channels will your BADASS display now only have 14 channels instead of the 16 in the diagram?"
I notice that you can set the oscillator frequency of the chip externally. I wonder if you could intentionally skew the oscillator frequency of a second chip being fed the same audio input to get some extra bands in between the intended ones?