The Sennheiser HD 505 headphones are crafted for enthusiasts eager to elevate their auditory experience. Featuring analytical tuning, exceptional detail reproduction, and enduring comfort, the HD 505 Over-Ear headphones deliver the signature Sennheiser experience across all listening and gaming environments.
“The HD 505 caters to those seeking the renowned sound quality associated with Sennheiser’s extensive headphone lineup,” states Klaus Hanselmann, Audiophile Product Manager at Sennheiser. “There is a unique element within that provides genuine listening enjoyment for aspiring audiophiles and gamers alike.”
At the core of the Sennheiser HD 505 over-ear headphones lies a specially designed 120-ohm transducer housed in an open ear cup, produced in the cutting-edge audiophile facility located in Tullamore, Ireland. With a frequency range spanning from 12 to 38,500 Hz and a distortion rate below 0.2 percent, these headphones ensure accurate and detailed music playback.

Sennheiser HD 505
This exceptional design results in a well-balanced sound profile characterized by robust bass, smooth mids, and fatigue-free highs, which are hallmarks of the Sennheiser brand. The angled transducers mimic the triangular layout of near-field speakers, creating a wide soundstage that allows users to immerse themselves in their favorite music, films, and games as if they were in the front row.
The Sennheiser HD 505 utilizes the well-established design of the HD 500 series, renowned for its exceptional comfort and lightweight construction. Every aspect, from the synthetic leather headband to the metal mesh ear cup covers, is crafted to ensure both durability and a refined aesthetic.

Sennheiser HD 505
Weighing only 237 grams, the HD 505 provides a comfortable fit, making it ideal for extended listening sessions. It features a 1.8 m detachable cable equipped with a 3.5 mm plug and a 6.3 mm adapter, enabling connections to a wide range of audio devices, including amplifiers, sound cards, audio interfaces, and AV receivers.
Similar to most headphones in the 500 Series, the HD 505 offers a modular design that allows for easy swapping of cables and ear pads in various lengths, applications, and connector types without the need for tools. This flexibility ensures that the HD 505 can evolve with the user’s preferences, whether by connecting to a balanced audio source or incorporating an in-line microphone.
