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Sennheiser HDB 630: Wireless Freedom Meets True Audiophile Precision

Sennheiser has set a new benchmark for high-end wireless listening with the HDB 630, its first truly high-resolution audiophile wireless headphones — blending the sonic purity of the iconic HD 600 series with the comfort and portability of the Momentum lineup.


Black headphones, open laptop, and plant on wood desk with coffee cup and smartphone. Bright, cozy setting.

High-Res Sound, No Compromise


The HDB 630 aims to deliver studio-grade detail without the wire. It comes bundled with Sennheiser’s BTD 700 USB-C hi-res Bluetooth transmitter, enabling 24-bit/96kHz streaming via the aptX Adaptive codec — even on smartphones that don’t support high-res Bluetooth natively.


This small dongle instantly expands hi-res support to nearly 80% of devices, intelligently adjusting bitrate and resolution to maintain stable playback even in crowded wireless environments.



Refined Acoustics and Build


Inside, a pair of 42mm drivers tuned with “pure audiophile precision” promise exceptional balance — smooth upper mids, extended treble, and deep, clean bass response across a 6Hz–40kHz range. The closed-back design keeps your sound intimate while adaptive ANC eliminates external distractions.


Listeners can also go wired for lossless playback using the included USB-C and 3.5mm cables.


Smart Customization for Audiophiles


Through the Smart Control Plus app, users gain access to an advanced Parametric EQ and crossfeed tuning — inspired by Sennheiser’s flagship HE 1 system.You can sculpt your frequency curve in fine detail, perform A/B comparisons, and even share custom EQ presets via QR codes after an upcoming software update.





Black headphones in a hard case with a coiled cable. The interior is mesh with slots for accessories. It's neatly organized.

Comfort and Endurance


The Japanese Protein Leatherette headband and fingerprint-resistant earcups ensure lasting comfort and premium durability. Battery life is equally impressive — 45 hours of playback with ANC on, extending to 60 hours with standard Bluetooth streaming.


Price and Availability


  • Price: $499.95 / €499.90 / £399.90

  • Pre-orders: Now open

  • Shipping: Begins October 21, 2025


With its blend of uncompromising sound, advanced customization, and elegant engineering, the HDB 630 stands as Sennheiser’s boldest step yet toward true audiophile wireless listening — a bridge between the wired purist and the modern listener.



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