ToneEQ:Headphone Equalizer
App Store

ToneEQ Guides

Understand the signal. Shape it with confidence.

Direct answers about iPhone audio boundaries, headphone correction, equalizer choices and safe headroom.

01

iPhone equalizer: what an EQ app can—and cannot—change

A clear guide to iPhone equalization, local playback and the system-wide audio boundary.

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Apple Music equalizer on iPhone: the real processing boundary

How MusicKit playback differs from ToneEQ software EQ and why the processing status matters.

Read guide03

AutoEQ, headphone correction and personal preference

Understand what a measurement-based baseline does and why it is different from your preferred sound.

Read guide04

Graphic vs parametric EQ: which should you choose?

Compare 10-band graphic EQ and parametric filters, including preamp, headroom and clipping risk.

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