Naturally Balanced In-ear Monitors
Big bang that birthed ADV. forward. Neutral. Airy. Balanced.

This product has been discontinued or is not currently available for sale.

Audiophile's Delight
ADV. M4 is one of the most accurate in-ear monitors, with each part precisely manufactured from the ground up using the most premium material.  The finely-tuned dynamic driver and its tailor-made acoustic filter recreate the natural and balanced sound with stunning details.

Premier manufacturer of professional in-ear audio equipment and accessories - Born in New York.

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