- The Sennheiser HDB 630 will be launched on October 21, 2025
- The headphones are priced at $499 / £399 / AU$999
- Sennheiser’s BTD 700 transmitter will be included, opening up access to ‘high resolution’ sound for Android and iPhone users.
Sennheiser has revealed its latest pair of wireless headphones, which are intended to deliver “true audiophile sound” and are its first headphones as part of its HD reference-quality audio range. The Sennheiser HDB 630 will arrive on October 21, 2025 and are said to offer “high-resolution” audio, “extra-long battery life” and active noise cancellation.
These wireless headphones will set you back $499 / £399 / AU$999, which means they have to compete with some of the best headphones out there – think the Sony WH-1000XM6 or Bowers & Wilkins Px7 S3.
So what do HDB 630s offer to make them stand out? Here you will find everything you need to know about them.
High resolution audio anytime, anywhere
The main thing that Sennheiser wants to highlight about its new devices is its ability to offer higher resolution audio without the need for cables.
That’s because the HDB 630s come 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, that means you’ll be able to listen to your favorite songs in better-than-CD quality: 24-bit/96kHz. Those are more details you’ll be able to access even with Spotify’s new Lossless update, but if you’re subscribed to Tidal or Qobuz, for example, you’ll be able to get a more insightful Bluetooth listening experience.
Of course, aptX still can’t handle the best quality out there without losing some fine details, but the inclusion of the dongle means that both Android and iPhone users will have access to aptX audio, something iPhone users in particular have never enjoyed.
Additionally, you can connect the headphones to your listening device via USB-C or an analog input for wired listening.
I’ve been using the headphones for about a week and will soon share my thoughts on the HDB 630’s sound profile, attention to detail and overall sonic capabilities, but so far I’ve been impressed and they certainly have some unique features that I haven’t seen in top-tier rivals.
Lots to sink your teeth into
These headphones aren’t just high-resolution audio, there’s so much more to explore.
Something that instantly piqued my interest is the inclusion of parametric equalizer. This allows the user to have full control over the specific frequency they want to change, with gain and Q-factor options. This means that if you have a very precise sound in mind, you should be able to tailor the headphones to your specific taste.
Another interesting inclusion is cross-feeding, something I haven’t personally used in a rival pair of the best over-ear headphones.
This combines 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 from the right side. By using cross-feeding, 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 on, the same as the five-star Sennheiser Momentum 4 Wireless.
The new cans are available to order today (October 8) and will be fully released on October 21.
Again, we will bring you our full opinion on the Sennheiser HDB 630 as soon as possible. But in the meantime, do you have any thoughts on these new headphones? Let me know in the comments!
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