The Audix A140 Headphones are professional closed back over ear headphones designed for critical listening, mixing, playback, and home studio use. They feature high performance 40 mm drivers with linear frequency response, delivering clean bass, accurate mids, and crisp highs without coloration. The over ear design provides excellent isolation and comfort during long sessions. The detachable cable and included adapter make them versatile for a wide range of devices and setups. Key Features: Closed back over ear design for strong isolation and minimal sound leakage 40 mm drivers provide accurate imaging and a balanced soundstage Linear frequency response from 10 Hz to 25000 Hz for full range monitoring Low impedance of 32 Ohms ensures compatibility with studio gear and portable devices High sensitivity of 97 dB for reliable output across different sources