4 packs
Classic 32-band spectrum analyzer. Vertical bars rise with each frequency bin; tops glow on peaks.
Lissajous-style XY oscilloscope painted on a dotted CRT graticule. Bands drive the X/Y frequencies, beats throw the trace.
Circular spectrum analyzer — 32 bars radiating from a glowing core. Bass swells the core, treble lights the outer rim.
Classic CRT-style waveform line synthesized from FFT bins. Bass thickens the trace, treble adds high-frequency wobble.
