If you’re new to the audiophile world, the IER-M7 is a great way to enter the realm of high-fidelity. It checks all the boxes in terms clarity, separation, soundstage and balance. And if you're a stage musician, you can trust the M7 as well.
If you’re looking for the IEM with the most neutral balance, then go for the M9. But if you want a little extra energy in your sound signature, the more dynamic M7 is the way to go.
-Headphone Dungeon(Feb 2019)
With its thick and full sound, the $799 Sony IER-M7 offers a solid IEM for anyone in need of detail and accuracy. While the neutral, workaday sound may not be the stuff every audiophile dreams of, the M7 still offers inarguable value for folks who want to hear music in its purest, most unadulterated state.