Sennheiser has announced a brand-new pair of premium wireless headphones with active noise canceling. The HDB 630 headphones are designed to deliver audiophile sound quality without wires. The new headphones come with a suite of features including advanced audio tuning and a comfortable fit for enjoying hi-res sound wherever you are.
The HDB 630 are aimed at audio enthusiasts who want high-quality sound without being tied to their audio device with a cable. The new headphones are housed in the same chassis that Sennheiser used for its best-selling Momentum 4 headphones, but the HDB 630 headphones have a customized acoustic system for focused listening, whether you choose to listen wirelessly or with an analog or digital cable.
At the heart of the HDB 630 are advanced 42mm dynamic transducers manufactured at Sennheiser’s state-of-the-art Tullamore production facility in Ireland. The transducers are flanked with a series of acoustic treatments designed to deliver pure sound instead of a flashier V-shaped tone curve. Sennheiser says the resulting experience produces an agile sound with smooth mids, intimate vocals and speedy dynamics that can faithfully reproduce the sound as it was conceived in the mastering studio.
“We set out to deliver a compelling option for audiophiles who want to keep the same level of quality they’re used to with their wired headphones while enabling them to enjoy it everywhere,” says Wee Hong Kuan, senior product manager, “and out of the box, the HDB 630 brings a truly unique combination of fidelity and customization.”
High-Resolution Sound
The innovative transducers used in the HDB 630 are powered by a high-resolution digital audio engine that can function in wired or wireless modes. Through the HDB 630’s USB Type-C port or analog headphone cable, it’s possible to connect the headphones directly to a portable digital audio player or a proper hi-fi system.
The HDB 630’s onboard DSP can support digital music files at sampling rates as high as 24-bit, 96kHz resolution, making the headphones suitable for use with hi-res music streaming services like Qobuz and Tidal. For untethered listening, there is support for Bluetooth 5.2 and Qualcomm’s aptX Adaptive codec that prioritizes sound quality and signal stability.
The new headphones also come with a USB Type-C transmitter dongle that can instantly upgrade class-compliant sources like smartphones and tablets to high-resolution aptX Adaptive capability. So, if you’ve always worried that your iPhone was stuck using the AAC codec, you can now plug in the dongle and upgrade the sound to aptX Adaptive for audio that rivals wired connections.
Currently, an estimated 16% of smartphones are able to support high-res wireless codecs. Sennheiser’s decision to include a Bluetooth dongle for hi-res codecs makes the HDB 630 a compelling proposition for anyone with a USB-C iPhone.
Brand New Tools
The new HDB 630 includes a range of shareable tools for shaping the headphone sound so listeners can experiment beyond the usual EQ presets and 5-band equalizer modes found in the Sennheiser Smart Control Plus app. Inspired by Sennheiser’s flagship HE 1 headphones, the Crossfeed feature gently blends the left and right channels to give the HDB 630 a sound that mimics a pair of loudspeakers, making it ideal for hard-panned stereo mixes that can be fatiguing when listening through headphones.
A new Parametric Equalizer lets listeners boost and cut frequencies beyond those offered in a traditional graphic EQ interface. The Parametric Equalizer includes user-adjustable bandwidth (Q) controls, filter types and an A/B toggle so users can compare different settings. The adjustments can be applied to the headphone’s advanced processing system and listeners can then enjoy their bespoke EQ settings no matter what device they are listening to.
Another new feature is the ability to share custom EQ settings with other HDB 630 users. Favorite presets can be shared through the Sennheiser app, unlocking new ways to experience high-resolution audio. A future update will also enable preset sharing through QR codes, making the headphones attractive for audiophiles who like to experiment and document their pursuit of perfect sound. With Smart Control Plus, users can also customize intelligent features like noise cancellation, on-head detection, codec preferences and more.
“The aim of this tuning was to let audiophiles on the move enjoy balanced sound with extended yet controlled bass,” says Tobias Ritter, acoustic engineer responsible for the HDB 630. “Whether plugging in or checking in, you always get a front-row seat to the emotional content in a recording, down to the last detail.”
Have A Nice Flight
A full charge of the HDB 630 battery provides up to 60 hours of playing time. A quick 10-minute charge can deliver a handy 7 hours of playtime when you are in a hurry. The HDB 630’s sealed design with Adaptive Noise Cancellation means the headphones can cut ambient noise. Integrated microphones enable the management of voice calls even in noisy environments. Transparency mode makes it easier to engage with the outside world without taking the headphones off.
The new HDB 630 headphones are designed with comfort in mind thanks to ear cushions made from Japanese protein leatherette supplied by Ideatex. The HDB 630 ship with a protective and zippered travel case as well as USB Type-C charging cable, 3.5 mm analog audio cable, airline adapter and the USB Type-C Bluetooth transmitter for bringing aptX Adaptive sound to smartphones, tablets and computers.
Pricing and Availability:
The Sennheiser HDB 630 will be available for pre-order on October 8, 2025, priced at £399.90 and will start shipping from October 21, 2025, from authorized dealers and sennheiser-hearing.com.
