The Sennheiser HD 490 PRO are premium open-back studio headphones designed for mixing and mastering with uncompromising accuracy. Featuring an ultra-wide soundstage, uncolored frequency response, and innovative low-frequency cylinder system, they deliver precise audio reproduction across the full spectrum. Built with lightweight ergonomics, replaceable ear pads, and sustainable materials, HD 490 PRO ensures comfort during long sessions while maintaining durability for professional use. Key features Open-back design with dimensional soundstage and ultra-precise localization Uncolored frequency response for honest, dynamic sound reproduction Innovative low-frequency cylinder system for accurate bass definition Sennheiser Open-frame Architecture reduces distortion and resonance Two sets of ear pads (mixing and producing) with unique sound signatures Washable and replaceable ear pads designed for sustainability Ergonomic design eliminates pressure points for long-session comfort Patented cable coil structure blocks cable-borne noise Detachable cable with right/left ear jacks for flexible studio setups Hand-assembled in Europe with durable components Overview Transducer type Dynamic, open-back Frequency response 5 – 36,000 Hz Max SPL 128 dB SPL (1 kHz @ 5% THD) Sensitivity 105 dB SPL (1 Vrms), 96 dB SPL (1 mW) Impedance 130 Ω (1 kHz) Total harmonic distortion
