The Sennheiser HD 280 PRO are closed-back, over-ear monitoring headphones engineered for professional studio and live sound applications. Known for their accurate sound reproduction, high ambient noise attenuation, and rugged design, they deliver reliable performance in demanding environments. With a collapsible, rotating earcup design and replaceable parts, the HD 280 PRO ensures long-term usability and comfort for extended sessions. Key features Closed-back, over-ear design for superior isolation High ambient noise attenuation (up to 32 dB) Accurate, linear sound reproduction for critical monitoring Soft, replaceable ear pads for long-term comfort Collapsible design with rotating earcups for portability Rugged construction built for professional use Single-sided coiled cable for convenience Extended frequency response for detailed sound Overview Transducer type Dynamic, closed-back Frequency response 8 – 25,000 Hz Nominal impedance 64 Ω Sound pressure level (SPL) 113 dB (1 kHz, 1 Vrms) Total harmonic distortion