The HD 550 delivers high-quality sound with punchy bass, neutral mids (for voice intelligibility), and an airy, open treble response. The open-back design provides a wide soundstage and excellent breathability for enhanced comfort. Every element of the design has been refined to balance sound quality with lightweight comfort. Velour earpads and a synthetic leather headband offer a plush fit for extended listening sessions The headphones feature the robust and reliable mechanical design of the HD 500 series. The HD 550 sports a detachable cable, and the input jack on the earcup is balanced, allowing for use with balanced headphone amps or optionally with a microphone, transforming the HD 550 into a premium gaming headset. The Sennheiser HD 550 includes a drawstring bag, a 3.5mm audio cable, and a 3.5mm to 1/4" TRS plug adapter.
- Extremely wide 6 Hz to 39.5 kHz frequency range
- Laminate Duofoil membrane and a lightweight voice coil reduce unwanted resonances for optimal transient response
- 150-ohm impedance for great audio performance on most playback devices including headphone amps
- Acoustic foam absorbs unwanted sounds, for better treble reproduction and a more controlled bass response
- Open-back design with mesh material avoids reflections for a truly open soundstage
- Acoustically transparent dust cover ensures pure transmission between transducer and eardrum
- Punchy bass that is well embedded in the very low frequencies, providing less warmth than the HD 599 but a more balanced treble response
- Neutral midrange makes voices and instruments shine and is free from unwanted coloring
- Precise and airy treble that's free from narrow-band resonances and strong in the highest octave
