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Sennheiser HDB 630 Wireless Headphones
Sale price
$399.95
Regular price
$499.95
Meet the Sennheiser HDB 630 — audiophile-tuned wireless closed-back headphones with 24-bit/96kHz hi-res playback, Adaptive ANC, advanced sound shaping, and up to 60 hours of battery life.
The included BTD 700 USB-C transmitter brings high-resolution aptX Adaptive playback to more devices, while a parametric EQ gives you unusually precise control over the HDB 630's sound.
- Sennheiser 42mm dynamic transducer with neutral, reference-oriented tuning.
- Up to 24-bit/96kHz playback through USB-C, analog input, or the included BTD 700 USB-C transmitter.
- Smart Control Plus app with Parametric EQ, adjustable Q and filter types, A/B comparison, and Crossfeed.
- Adaptive Noise Cancellation with Transparency Mode and up to 60 hours of battery life.
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Our Take
HDB 630 is Sennheiser's answer for listeners who want one wireless headphone to handle serious music listening, travel, work, and everyday use without making sound quality secondary to convenience.
The real differentiator isn't simply ANC or long battery life. HDB 630 gives you several ways to build a higher-quality playback chain: Bluetooth, the included BTD 700 transmitter, USB-C digital audio, and a conventional analog connection. Add one of the most capable equalization systems available in a consumer wireless headphone, and there is considerably more room to tailor the experience than with a typical premium ANC model.
For someone who wants the portability and convenience of a modern wireless headphone but approaches sound more like an enthusiast using a conventional wired system, HDB 630 occupies an unusually compelling middle ground.
Audiophile-Tuned 42mm Driver
At the center of HDB 630 is Sennheiser's in-house 42mm dynamic transducer, paired with a customized acoustic system designed around neutral, detailed reproduction rather than an exaggerated wireless-headphone tuning.
Sennheiser describes the presentation as balanced and reference-oriented, with lifelike mids, extended but controlled bass, fine detail, and a spacious soundstage. The closed-back enclosure adds the isolation needed for portable use while retaining the more analytical priorities associated with Sennheiser's audiophile headphone lineup.
With a high-resolution signal, HDB 630 is specified from 6Hz to 40kHz. With other signals, the specified response is 6Hz to 22kHz.
High-Resolution, Anywhere
HDB 630 supports playback up to 24-bit / 96kHz through USB-C, its analog input, or compatible high-resolution Bluetooth playback.
Wireless connectivity uses Bluetooth 5.2 with support for aptX Adaptive, aptX HD, aptX, AAC, and SBC. For devices that don't natively provide the desired Bluetooth codec support, Sennheiser includes the BTD 700 Bluetooth USB-C transmitter.
The BTD 700 allows compatible USB-C phones, tablets, and computers to transmit high-resolution aptX Adaptive audio to HDB 630 without relying on the source device's built-in Bluetooth capabilities. It is a particularly useful inclusion for devices whose native wireless audio support would otherwise limit playback quality.
Parametric EQ & Crossfeed
The Sennheiser Smart Control Plus app goes well beyond the basic bass-and-treble adjustments commonly found with wireless headphones. HDB 630 includes an advanced Parametric Equalizer that lets you adjust frequency, gain, bandwidth/Q, and filter type for much more precise tuning.
An A/B toggle makes it easy to compare your adjusted response with an alternative setting, which is particularly useful when making small changes and trying to determine whether an adjustment is actually an improvement.
HDB 630 also includes Crossfeed, inspired by Sennheiser's HE 1. Crossfeed subtly blends information between the left and right channels to create a more speaker-like presentation and can make strongly hard-panned recordings more comfortable over headphones. The Smart Control Plus app provides Off, Low, and High settings.
“The aim of this tuning was to let audiophiles on the move enjoy balanced sound with extended yet controlled bass. 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.”
Designed for Everyday Use
Adaptive ANC & Transparency
Adaptive Noise Cancellation automatically responds to your surroundings, while Transparency Mode lets outside sound back in when you need to hear what's happening around you. ANC can also be manually controlled or switched off through Smart Control Plus.
60-Hour Battery Life
HDB 630 is rated for up to 60 hours of Bluetooth music playback with ANC activated. A full charge takes approximately two hours, while 10 minutes of fast charging can provide up to seven hours of listening.
Comfort & Build
HDB 630 uses a closed-back circumaural design with synthetic leatherette ear pads and a soft-touch headband intended for long listening sessions. The headphone weighs approximately 311 grams without a cable.
The combination of physical isolation and Adaptive ANC also makes HDB 630 particularly well suited to air travel, commuting, and other environments where a conventional open-back audiophile headphone would be impractical.
Technical Specifications
Audio & Wireless
| Acoustic Design | Closed-back, over-ear |
|---|---|
| Transducer | 42mm electrodynamic moving-coil driver |
| High-Resolution Playback | Up to 24-bit / 96kHz via USB-C, analog input, or BTD 700 Bluetooth USB-C transmitter |
| Frequency Response — Hi-Res | 6Hz–40kHz |
| Frequency Response — Other Signals | 6Hz–22kHz |
| Nominal Impedance | 480Ω active |
| Sound Pressure Level | 105dB SPL at 1kHz / 0dBFS |
| Total Harmonic Distortion | <0.2% at 1kHz / 100dB SPL |
| Bluetooth | Bluetooth 5.2 |
| Codec Support | aptX Adaptive, aptX HD, aptX, AAC, SBC |
| Hi-Res USB-C Transmitter | BTD 700 included |
| Noise Control | Adaptive Noise Cancellation and Transparency Mode |
Power & Physical
| Battery Life | Up to 60 hours with ANC activated |
|---|---|
| Hi-Res Wireless Battery Life | Up to approximately 45 hours in Hi-Res mode |
| Charging Time | Approximately 2 hours |
| Fast Charge | 10 minutes provides up to approximately 7 hours of playback |
| Weight | 311 g without cable |
| Ear Coupling | Over-ear |
| Ear Pad Material | Synthetic leatherette |
| Analog Audio Cable | 1.20 m detachable cable with 3.5mm plug |
| USB Cable | 1.20 m USB-C to USB-C |
What's Included
- Sennheiser HDB 630 closed-back headphones
- BTD 700 Bluetooth USB-C transmitter
- 1.20 m USB-C charging and audio cable
- 1.20 m 3.5mm analog audio cable
- In-flight adapter
- Protective carrying case
Independent Reviews
HDB 630 Review — SoundGuys
HDB 630 Review — GadgetryTech
Overall rating: 5.0 / 5 from 10 reviews.
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Reviews
The Sennheiser HDB 630's exceeded expectations.
"The HDB 630 accuracy is amazing. These are true reference headphones even as wireless. As advertised, they represent music as it is presented by the source, without manipulating it. That's just what I was after. The soundstage is wide, with a great balance in neutral setting between bass, mids, and highs. Plus, one does have the option of manipulating the music presentation in the settings if so desired. HeadAmp was excellent, with great prices, quick shipping, and status updates."
Well balanced and Good for longtime listening
"With a help from HeadAmp, I got a chance to preorder 630, it turned out be a right decision for me. They have high resolution to distinguish instruments and voices from music and the sound was well balanced over the wide range of spectrum. You can easily listen for a long time without fatigue in your ears. Only downside I found was when I have two connections with the phones, it was not smooth to add 3rd one and kick out one of the two previous connections. I kind of had to delete one of the previous connections. I might not be familiar with app controls. Still wired headphones sound quality is better but I can recommend this for casual listening or traveling. Noise cancelling was good enough to block out airplane noise during the last trip of mine. I highly recommend this headphones."
The new benchmark of ANC headphones.
"Excellent sound definition from an active noise control wireless headphone. The Sennheiser app is very intuitive and provides a parametric equalizer enabling more sound definition customization. I pre ordered and had great communication regarding the date of shipping and delivery."
Great sound stage, easy connectivity,
"Great sound stage, easy connectivity, easy to use app. Also the shipping was fast!!"
Buy these!
"Fantastic headphones that tick all the boxes. Comfortable, great sound quality, good call quality, looks great, good app."
"First audiophile Headset. Not as profound as I thought the difference would be, but still very solid."
One of the best sounding headphones!
"Excellent sound quality."
HD 630 Delivers, Worth the Wait
"HeadAmp kept kept me updated on the backorder status and delivered them sooner than expected. Headphones opened up a entire new world of sounds I had never experienced before. Still bringing tears to my eyes hearing old favorites in the way they were meant to be heard."
Great service, amazing headphones
"Preordered, got clear communication, fast shipping, and of course the product itself is a game changer for portable, closed-back DSP headphones."
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