The Sennheiser HD 400 PRO are a pair of open-back headphones designed to give you a completely neutral, pure sound that’s perfect for mixing and mastering. As you’re working on music, it’s important that you hear it as accurately and evenly as possible to get the best sound you can out of it. Enter the HD 400 PRO, the perfect pair of headphones to help you make clear, professional mixes that’ll translate naturally to any system. Its comfortable, natural fit and velour earcups make them ideal for long listening sessions, so no matter what you’ve got to work on, from a big single to a full-length album, you can keep working all day without any discomfort. Their open-back design provides a smooth and detailed reproduction of whatever you’re listening to, that won’t risk ear fatigue.
With sound provided by its custom-designed 120° angled transducers, and a specially developed polymer blend in their diaphragms, the HD 400 PRO are meticulously built to provide clear, accurate sound with absolutely zero distortion at high volumes, improved stereo imaging, and deeper sub-bass that isn't over-emphasised. Precision engineering for precision monitoring. Robust external materials ensure that the HD 400 PRO are a pair of headphones that you can rely on no matter what.
Included coiled and straight cables give you the options of connecting and positioning in your system to suit you. Despite the closed nature of headphones, the HD 400 PRO are built to give you a sound that feels and behaves like a set of monitors spaced evenly and aimed directly at your ears for that optimal listening experience. No matter how detailed your work, the HD 400 PRO will be your companion in a professional studio, a home studio, a bedroom, or on the go.
Highlights
- A pair of flat, accurate monitoring headphones ideal for audiophiles and professional audio engineers
- Neutral, accurate sound built for highlighting every detail of your mix
- High-efficiency driver magnet provides ventilation for deeper bass without distortion
- Angled transducer design gives accurate sound and improved stereo imaging
- Lightweight construction and velour earpads for comfortable fit through long-term listening sessions
- Open-back design helps prevent ear fatigue over long periods of time
- Included straight or coiled cables for your choice of connection and freedom of movement
Technical Specifications
- Acoustic Principle: Dynamic, Open-Back
- Ear Coupling: Circumaural
- Ear Pad Material: Velour
- Jack Plug: 3.5 mm jack with 6.3 mm adapter
- Impedance: 120Ω
- Frequency Response: 6 Hz – 38 kHz (-10 dB)
- Sound Pressure Level: 110 dB (1 kHz/1V RMS)
- Total Harmonic Distortion: <0.05% (1 kHz/90 dB SPL)
- Weight (without cable): 240 g
- Temperature Operation: -15°C to 55°C (5°F to 131°F)
- Storage: -55°C to 70°C (-67°F to 158°F)
- Relative Humidity: ≤90%
