SENNHEISER HDB 630
€499.90
HDB 630 with BTD 700 Bluetooth® USB C Dongle included
You want it all. High resolution, neutral tone, extra-long battery life, flawless active noise cancellation, and of course, no more cables. Meet the closed-back HDB 630. With the included BTD 700 Bluetooth® USB C Dongle, you’re free to enjoy glorious audiophile sound anywhere you go.
Features
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The in-house 42 mm transducer delivers neutral sound with lifelike mids, stunning detail, and a wide soundstage.
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Enjoy high resolution with support for aptX™ HD and aptX™ Adaptive, especially when paired with the included BTD 700 Bluetooth® USB C Dongle
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For the purest signal, connect via USB C or analog input for lossless listening at up to 24 bit/96 kHz.
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Parametric equalizer for advanced equalization and the crossfeed feature give you complete control of your sound.
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Powerful adaptive noise cancellation blocks distractions without degrading clarity, dynamics, or balance.
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Listen for days, not hours, with up to 60 hours of battery operation.
Turning audiophile sound on its head
Serious listening used to require a serious amount of equipment. The HDB 630 changes the rules.
The pursuit of audiophile sound can get a bit gear intensive. High-end DACs that cost more than your first car did. Balanced cables, big tube amps. Not exactly stuff you bring on a walk around the block. But now you can have your high fidelity and carry it, too — with all the conveniences of state-of-the-art wireless headphones.
Plus, thanks to the included BTD 700 Bluetooth® USB C Dongle, you can finally get high-resolution wireless sound from a wide range of devices including most phones, tablets, and laptops. No matter which codecs your device supports, you can enjoy brilliant aptX™ Adaptive with your HDB 630 and the dongle, since it’s an upgrade that makes your smartphone capable of delivering hi-res quality to your headphones.
A perfectly orchestrated acoustic chain
Each component has been carefully crafted to work in harmony, revealing details you’ve never heard from wireless headphones before.
Each component has been carefully crafted to work in harmony, revealing details you’ve never heard from wireless headphones before.
Neutral yet detailed mids make it feel like singers are performing right in front of you. A wide soundstage further enhances the feeling of being there with the musicians.
Carefully tuned, neutral, high-res sound like this requires acoustics, mechanics, materials, and electronics that complement each other perfectly. Our engineering team optimized every part of the acoustic chain from the 42 mm in-house transducer to the transparent mesh in the baffle to work together with exceptional balance and clarity.
The deep back volume and new acoustic mesh, for example, ensure smooth upper mids and lower treble. The result is a natural and balanced sound experience typically unseen in a closed headphone. But the HDB 630 achieves this with a closed back. Combined with outstanding adaptive noise cancellation, it gives you the ability to enjoy high fidelity anywhere with no distractions.
Control freaks, it’s your time to shine
Critical listening demands state-of-the-art electronics and precise control. That´s why we included high-res codecs and advanced capabilities like the crossfeed feature and parametric equalizer.
Parametric equalizer: The precision to get exactly what you want
Previous equalizers only provided limited benefits, whereas our new parametric equalizer gives you full flexibility to adjust your sound exactly to your needs. The parametric equalizer available via the Smart Control Plus App lets you shape your sound exactly how you like it — down to the smallest detail.
Stay comfortable and stay connected
A great headphone should take even epic playlists in stride.
Why the HDB 630 sounds exquisitely neutral
The HDB 630’s tuning is all about balance: Fast and extended bass, clear lifelike mids, and controlled treble that keeps the music feeling open and natural.
The HDB 630’s curve compared to the MOMENTUM 4 shows how audiophile tuning changes the listening experience.
Notice the low end: The HDB 630’s sub-bass and mid-bass are quick and controlled, staying closer to neutral. This reduces any “masking” effects that can hide vocal detail. Moving into the lower mids, the HDB 630 remains smooth and even, keeping voices present and lifelike.
In the upper mids, there’s a tasteful lift that gives vocals a richer, more intimate presence, balanced by a still-neutral bass foundation. The treble region keeps that balance, adding a sense of air without harshness — something you can see in the rise before 10 kHz, which helps improve the perception of a natural, open space around instruments.
The result is a frequency response tuned for speed and clarity in the bass, lifelike mids, and controlled treble — all without the peaks or dips that can cause listening fatigue. It’s a more neutral, refined take on Sennheiser’s wireless sound that makes long sessions and critical listening a unique pleasure.
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