Audio-Technica ATH-M30x vs Audio-Technica ATH-M20x

The Audio-Technica ATH-M30x are a step up from the budget-oriented ATH-M20x in the lineup. They share a similar build quality and design. Both have similar sound profiles with noticeably quiet treble where sibillants (S and T sounds) reside, and the ATH-M30x output slightly more accurate bass. Unlike the ATH-M20x, the ATH-M30x are marginally more portable and protected with a pouch.