HDB 630

Sennheiser HDB 630

The Sennheiser HDB 630 redefines audiophile-grade listening by combining high-fidelity sound, versatile connectivity, and long-lasting comfort in a modern over-ear wireless design. Built on the proven chassis of the Momentum 4, these headphones are tailored for discerning listeners who demand both excellent wireless performance and wired precision.

Key Features

Hi-Res Audio Support (Wired & Wireless)

• Equipped with 42 mm dynamic drivers crafted for clarity and neutrality.

• Wired playback (via USB-C or 3.5 mm analog) supports up to 24-bit / 96 kHz resolution.

• Wireless streaming uses Bluetooth 5.2 with support for aptX™, aptX HD™, and aptX Adaptive™.

• Includes a USB-C dongle (BTD 700) for high-res wireless streaming on devices without native support.

Advanced Customisation & Sound Shaping

• Controlled via the Smart Control Plus app with both a 5-band and full parametric EQ (offering bandwidth/Q control, filter types, and A/B toggling).

• Crossfeed feature blends left and right channels for a speaker-like, natural soundstage and reduced listening fatigue.

Adaptive Noise Cancellation & Comfort

• Adaptive Hybrid ANC effectively minimizes ambient noise without sacrificing audio clarity or dynamics.

• Transparency mode allows for situational awareness with the touch of a button.

• Features plush Japanese Protein Leatherette ear cushions and a closed-back design for long, immersive sessions.

Long Battery Life & Connectivity

• Up to 60 hours of playback time per charge with ANC enabled.

• Quick charge provides approximately 7 hours of listening with just 10 minutes of charging.

• Multiple connectivity options: USB-C (charging/streaming), 3.5 mm analog, and Bluetooth wireless.

Specifications

• Driver Size: 42 mm dynamic drivers

• Frequency Response: Up to 6 Hz–40 kHz (wired/USB mode); 6 Hz–22 kHz (analog/Bluetooth mode)

• Impedance (active): 480 Ω

• Sensitivity: 105 dB SPL @1 kHz/0 dB FS

• Supported Codecs: aptX Adaptive, aptX HD, aptX, AAC, SBC

• Bluetooth Version: 5.2

• Battery Life: Up to 60 hours (ANC on)

• Quick Charge: 10 min = 7 hours playback

• Weight: ~311 g

• Included Accessories: USB-C charging cable, 3.5 mm analog cable, airline adapter, carry case, USB-C dongle (BTD 700)