About QDC
QDC is the trade name of Shenzhen Qili Audio Application Co., Ltd., a Chinese high-tech firm originally rooted in police and military communication R&D, now focused on premium in-ear monitor solutions. The company boasts its own professional R&D facilities—including anechoic chambers and state‑of‑the‑art testing instruments—supporting years of patented innovations in acoustic design. A founding member of the IEMITO (In‑Ear Monitor International Trade Organization), QDC is committed to advancing the in-ear monitor industry globally.
Why QDC
QDC in-ear monitors are trusted by professionals and audiophiles alike for one simple reason—uncompromising sound quality. With their precision-tuned drivers, ergonomic custom and universal fits, and cutting-edge crossover technology, QDC IEMs deliver stunning clarity, deep bass, and rich detail across all frequencies. Whether you're on stage, in the studio, or just enjoying your favorite tracks, QDC gives you a listening experience that’s nothing short of world-class. Designed with durability and comfort in mind, these IEMs are the perfect fusion of art and engineering.
The QDC Difference
QDC In-Ear Monitors are engineered for pure sonic precision—each model is meticulously hand-assembled to deliver unmatched clarity, balance, and depth trusted by audiophiles and professional musicians worldwide. With custom-fit designs, multi-driver configurations, and military-grade craftsmanship, QDC sets a new standard in personal audio.