- The Sennheiser HDB 630 will be released on October 21, 2025
- The headphones are priced at $499 / £399 / AU$999
- Sennheiser’s BTD 700 transmitter will be included, opening access to “high-resolution” audio to Android and iPhone users.
Sennheiser has revealed its latest pair of wireless earbuds, intended to deliver “true audiophile sound”, and are its first earphones as part of its HD reference quality audio range. The Sennheiser HDB 630s are expected to arrive on October 21, 2025 and are said to offer “high-resolution” sound, “extra-long battery life” and active noise cancellation.
These wireless headphones will set you back $499 / £399 / AU$999, which means they have to fight against some of the best headphones on the market – think the Sony WH-1000XM6 or the Bowers & Wilkins Px7 S3.
So, what does the HDB 630 offer to stand out? Here’s everything you need to know about them.
High-resolution audio anytime, anywhere
The main thing Sennheiser wants to emphasize about its new cans is their ability to deliver higher resolution audio without the need for cables.
That’s because the HDB 630 comes with Sennheiser’s BTD 700 USB-C dongle, which can bypass the wireless transmitter your phone uses to enable aptX, aptX HD, and aptX Adaptive audio.
Essentially, this means you’ll be able to listen to your favorite tracks in better than CD quality: 24-bit/96kHz. That’s more detail than you’ll be able to access even with Spotify’s new Lossless update, but if you’re a subscriber to Tidal or Qobuz, for example, you’ll be able to get a more revealing Bluetooth listening experience.
Of course, aptX still can’t handle the best quality without loss of detail, but the inclusion of the dongle means that Android and iPhone users will have access to aptX audio – something iPhone users in particular have never appreciated.
Additionally, you can connect the headphones to your listening device via USB-C or analog input for wired listening.
I’ve been using the headphones for about a week now, and I’ll share my thoughts on the HDB 630’s sound profile, attention to detail, and overall sound capabilities soon – but I’ve been impressed with them so far, and they certainly have some unique features that I haven’t seen in their top-tier competitors.
Something to eat
There’s more to these headphones than just high-resolution audio, there’s much more to explore.
Something that immediately piqued my interest was the inclusion of parametric EQ. This allows a user to have full control over the specific frequency they wish to change, with options for gain and Q-factor. This means that if you have a very specific sound in mind, you should be able to tailor the headphones to your specific tastes.
Another nice inclusion is crossfeed – something I haven’t personally used on a rival pair of the best over-ear headphones.
This mixes the left and right audio channels, which can be useful if a recording has extreme channel separation – for example if most of the bass is only played on the right side. By using crossfeed, tracks like this can be optimized for headphone listening, with a more balanced presentation.
In addition to these inclusions, the HDB 630 will offer adaptive noise cancellation, touch controls, and up to 60 hours of battery life with ANC enabled – the same as the five-star rated Sennheiser Momentum 4 Wireless.
The new cans are available to order today (October 8) and will be fully released on October 21.
Once again, we’ll bring you our full thoughts on the Sennheiser HDB 630 as soon as possible. But in the meantime, do you have an opinion on these new headphones? Let me know in the comments!
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