Most proper EQ apps only work with rooted devices, but as it turns out, rooting isn't necessarily a prerequisite. There have even been some rootless apps like Music Equalizer for a long time, but many of them are rather clunky to use. Thus, a new app called Wavelet decided to go ahead and try to occupy that easy-to-use niche. It comes with a sleek interface that offers extensive customization options and a library of 2,000+ headphone profiles that helps you get the most neutral sound possible with the option to fine-tune, and it can even enhance some phone speakers.

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