Check the listing for details. Audio-Technica ATH-R30x Professional Open Back Reference Headphones Black. Condition: New. Listed at 109.00 USD. The Audio-Technica ATH-R30x professional open-back reference headphones bring a new level of precision and clarity to your listening experience. Designed for home studios and emerging audio professionals, these open-back headphones deliver a spacious, detailed soundstage that immerses you in every nuance of your audio. Featuring meticulously crafted 40 mm drivers, the ATH-R30x offers natural, distortion-free audio that remains true to the source. With its breathable design and velour earpads, these headphones ensure lasting comfort, even during extended sessions. Whether you're mixing tracks or enjoying high-resolution playback, the ATH-R30x provides a professional-grade solution with the signature quality of Audio-Technica.