A spectrum analyzer supplements limited low-frequency monitoring by visualizing octave balance at the bottom end

In small studios with compromised low-frequency monitoring, a spectrum analyzer provides an objective secondary reference for bass balance decisions. Engineers like Joe Chiccarelli use one to monitor the balance between 30Hz, 50Hz, and 80Hz octave bands during mixing — identifying when a specific frequency band is overrepresented relative to commercial reference material. A high-resolution time-averaged mode reveals overall spectral balance; faster peak metering tracks transients. Key limitation: each manufacturer’s implementation displays the spectrum differently, so the analyzer only becomes useful after calibrating it to commercial material in your specific setup. Freeware options (Voxengo SPAN, RND Digital Inspector) make spectrum analysis accessible at no cost.

Examples

Joe Chiccarelli: ‘I put a spectrum analyzer across my stereo buss that lets me know when the bottom end is right. I’m mainly looking at the balance of the octaves on the bottom end, like if there’s too much 30Hz but not enough 50Hz or 80Hz.‘

Assessment

A small-studio engineer cannot reliably hear whether their kick drum has too much 30Hz relative to 50Hz on their ported monitors. Describe how a spectrum analyzer and commercial reference material together compensate for this monitoring limitation.