Professional audio engineers demand precision, and the HD 400 PRO reference headphones provide exactly that with their meticulously engineered 120-ohm transducers and specialised polymer diaphragm blend. Sennheiser's open-back design creates a natural listening experience that mirrors high-end recording studios, whilst the angled transducer configuration produces exceptional stereo imaging and spatial sound reproduction. The robust drive magnet system combines high power output with intelligent damping for ventilation management, resulting in deeper bass response and significantly reduced distortion that would otherwise compromise mix clarity.
Built for marathon mixing sessions, these headphones feature a lightweight construction with velour earpads and articulating ear cups that adapt comfortably to any head shape. The single-sided coiled cable provides operational freedom, with a straight cable also included for versatility. Professional users can connect seamlessly to mixing desks, audio interfaces, and various devices using the included 3.5mm to 6.3mm screw-on adapter, making these headphones suitable for editing, mixing, and mastering applications.
The HD 400 PRO's frequency response has been carefully tuned for honest reproduction across the entire spectrum, particularly excelling in the lower frequencies where many monitoring solutions fall short. The open ear cup design eliminates the confined space artifacts common in closed-back designs, recreating the optimal listening position found in professional studios. Additionally, the included dearVR MIX software transforms these headphones into a virtual world-class stereo mix room, utilising advanced spatial audio technology and Spatial Headphone Compensation (SHC) to ensure your productions translate reliably across any sound system.
- A professional‘s tool with neutral sound reproduction
- Lightweight design for all-day usage
- Single-sided, coiled cable allows freedom to operate (straight cable is also included)
- Angled transducers designed for low distortion at high SPL‘s provide a spacious and accurate soundstage
- Reference-grade headphones for project and professional mixing sessions
- Open back
- The perfect synergy of comfort & precision
- Place yourself in the sweet spot of your mixing environment
- 3 m coiled cable with 3.5 mm jack plug
- 3.5 mm jack plug to 6.3 mm adapter
- 1.8 m straight cable



