iTunes 1.1 (on Mac OS 9)

This application doesn’t have this feature.

iTunes 2 (on Mac OS X 10.2 Jaguar)

Equalizer in iTunes 2

iTunes 3 (on Mac OS X 10.2 Jaguar)

Equalizer in iTunes 3

iTunes 4.1 (on Mac OS X 10.4 Tiger)

Equalizer in iTunes 4.1

iTunes 4.1 (on Windows XP)

Equalizer in iTunes 4.1

iTunes 5 (on Mac OS X 10.4 Tiger)

Equalizer in iTunes 5

iTunes 5 (on Windows XP)

Equalizer in iTunes 5