Sennheiser has unveiled the HDB 630, a premium wireless headphone that aims to bring audiophile-grade sound wherever you go. Designed for purists who refuse to compromise, the HDB 630 combines reference-level tuning, cutting-edge digital processing, and travel-ready comfort into one striking package.

This isn’t just another Bluetooth headset with a high-end badge. The HDB 630 has been meticulously engineered for listeners who demand precision, realism, and control, whether they’re plugged into a DAC or streaming wirelessly from a smartphone.

From the MOMENTUM Legacy to the Next Level

The HDB 630 builds on the ergonomic success of the best-selling MOMENTUM 4, retaining its lightweight yet robust chassis while introducing a customised acoustic system designed purely for focused, high-fidelity listening.

At its heart lies a 42 mm dynamic transducer, crafted at Sennheiser’s state-of-the-art Tullamore facility in Ireland. The driver is paired with carefully tuned acoustic treatments that prioritise natural balance and clarity over artificial excitement. The result? A sound signature that’s smooth through the mids, intimate in the vocals, and fast in transient response, faithfully reflecting the artist’s intent straight from 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,”
said Wee Hong Kuan, Senior Product Manager at Sennheiser.
“Out of the box, the HDB 630 brings a truly unique combination of fidelity and customisation.”

High-Resolution Sound, Wired or Wireless

Under the hood, the HDB 630 features a high-resolution digital audio engine capable of decoding up to 24-bit / 96 kHz audio—whether through a USB Type-C cable or traditional analogue input.

For wireless listening, it uses Bluetooth 5.2 with aptX Adaptive codec support, delivering low-latency, high-fidelity audio streaming with rock-solid signal stability.

Recognising that only around 16% of smartphones currently support aptX Adaptive natively, Sennheiser includes a USB-C Bluetooth transmitter dongle in the box. Plug it into your phone, tablet, or laptop, and it instantly upgrades your device to high-resolution wireless—broadening compatibility to roughly 80% of modern smartphones.

This small addition represents a big step forward for mobile audiophiles who don’t want to sacrifice fidelity when leaving the home hi-fi setup behind.

Next-Generation Sound Customisation Tools

Beyond sound quality, the HDB 630 redefines what it means to personalise your listening experience. Using the Smart Control Plus app, Sennheiser introduces an array of new sound-shaping tools that go far beyond the typical EQ sliders.

Among the standout features is Crossfeed, inspired by Sennheiser’s legendary HE 1 system. It subtly blends left and right channels to emulate a speaker-like soundstage, reducing listener fatigue in hard-panned mixes.

There’s also a brand-new Parametric Equalizer (PEQ)—a feature rarely seen outside of professional studio tools. This advanced EQ lets you boost or cut frequencies with precise bandwidth (Q) control, adjustable filter types, and even an A/B comparison toggle. These settings are processed directly in the headphone’s DSP, ensuring your preferred tuning remains consistent across devices and apps.

Audiophiles can share their EQ profiles with other users through the app, opening up a new social layer for sound enthusiasts to collaborate and experiment. A future update will even allow QR code sharing of presets—making it easier than ever to exchange settings with the global headphone community.

“The aim of this tuning was to let audiophiles on the move enjoy balanced sound with extended yet controlled bass,”
explained Tobias Ritter, Acoustic Engineer 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.”

Built for Long Journeys and Daily Listening

Travellers and commuters will appreciate the HDB 630’s focus on endurance and comfort. The battery delivers up to 60 hours of playback on a single charge, with fast charging that adds 7 hours of listening in just 10 minutes.

Sennheiser’s Adaptive Noise Cancellation (ANC) keeps distractions at bay, while a transparency mode allows you to stay aware of your surroundings at the touch of a button. The built-in microphone array ensures crystal-clear calls and voice assistant interactions.

Comfort hasn’t been overlooked, either. The ear pads are made from IDEATEX Japanese Protein Leatherette, known for its soft feel and long-lasting durability. Combined with the headphone’s balanced weight distribution and plush padding, the HDB 630 is designed for hours of fatigue-free listening—perfect for long flights or studio sessions alike.

Each unit ships with a protective travel case and essential accessories:

• USB-C charging cable

• 3.5 mm analogue audio cable

• Airline adapter

• USB-C Bluetooth transmitter dongle

Everything you need to capture reference-grade sound wherever life takes you.

Availability and Pricing

The Sennheiser HDB 630 is available for pre-order starting today, 8th October, priced at £399.90 (MSRP)/$499.95. Units will ship on 21st October, through authorised retailers and directly from sennheiser-hearing.com.

With the HDB 630, Sennheiser bridges the gap between studio-grade precision and everyday practicality. It’s a headphone built for modern listeners who demand both mobility and mastery of sound—an ideal companion for those who want the purity of wired performance without the tangle.

In a market crowded with smart features and exaggerated bass, the HDB 630 stands out for all the right reasons: craftsmanship, clarity, and commitment to true high-fidelity audio. Whether you’re on a plane, at your desk, or in your living room, Sennheiser promises that your music will always sound exactly as it should—nothing more, nothing less.