Sennheiser has been a well-loved brand for its headphones for the casual listener as well as the audiophile demographic. One of its latest open-back headphones is the new HD 505 Copper, and here’s my take on the device.
Design
The over-the-ear headphones are well-built. The ear cups offer soft padding that lets me wear the device for long without sweating or discomfort. The ear mould is spacious and fits well while not totally covering my ears up. The headband padding is also soft and sits plushly. Since this is an analogue headphone, you don’t get any app. What you do get in the box is a 1.8 metre cable with a 3.5 mm plug, a 3.5 to 6.35 mm screw-on jack adapter, and a drawstring bag. Given that these headphones are audiophile grade and most likely used in places like studios and homes, the inclusion of a hardshell carrying case would have been great! Something that consumers have come to expect with headphones with a more affordable price tag as well.
Sennheiser HD505 Copper Edition | Photo Credit: BIJOY GHOSH
Acoustics
From the very start, I found this headphone’s sound signature extremely refined.
It’s neither too bass-heavy nor does it favour vocals unfairly. It has a very balanced soundstage compared to closed-back headphones that I have reviewed in recent times. Those who dabble in or are professionals at audio mixing and even gaming, would really appreciate the acoustics it offers.
Humankind’s Big Dawgs sounded really balanced across the varying levels of treble, bass and synth as well as Hanumankind’s vocals. The soundstage of these headphones is finely tuned to strike a balance across bass, treble, vocals, and instruments. Its calibration, closely aligned with the Harman curve, positions it firmly in the audiophile territory, offering a listening experience that is both precise and immersive.
Where these headphones truly shine is in gaming. While playing GTA 5, I was drawn into the fictional city of Los Santos, experiencing an impressive layering of audio—from the music tracks and player dialogues to ambient sounds like distant conversations, dogs barking, and car engines revving. Being an open-back design, the headphones also subtly picked up real-world sounds, such as cats meowing outside, adding an extra layer of environmental realism.
In my work as a multimedia producer, editing podcasts and videos on a daily basis, I found the Sennheiser HD505 Copper to be a trustworthy companion. It’s a great set of headphones to edit long podcasts with - and the soft padding and snug fit also help immensely. While editing, there was the usual office chatter that could be heard through these earphones due to its open-back design.
In quieter spaces such as professional studios or soundproof rooms at home, one would be able to appreciate its acoustic experience even more!
Verdict
With a great fit and comfort, a balanced soundstage and acoustics as an entry into audiophile territory, the HD505 Copper is a great catch for the price.
With competition from the Sony MDR‑MV1 and Audio Technica ATH‑R70x in open-back headphones, the HD505 Copper is a step up into the audiophile range for people moving from basic headphones for gaming and audio mixing work.
Sennheiser HD505 Copper edition
Price: ₹29,990
Pros: Open-back design which helps with wide soundstage, audiophile-grade sound, comfortable wear
Cons: External audio bleed due to design, plasticky build quality.
Published on September 10, 2025