Sony and Sennheiser approach premium wireless headphones from different directions. The 1000X THE COLLEXION gives Sony’s familiar noise-canceling platform a more luxurious build and a bolder sound. The HDB 630 packages Sennheiser’s more analytical tuning with wireless convenience and an included USB-C transmitter. Both can serve as everyday headphones, but their strengths make the choice fairly straightforward once you know what matters most to you.
What You Get
| 1000X The Collexion | HDB 630 |
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Look & Feel
The Collexion immediately looks like the more expensive object. Stainless-steel accents and vegan leather over the earcups distinguish it from Sony’s standard 1000X models, while its roomy cups and angled drivers leave plenty of space around the ears. Despite the upgraded materials, it retains the comfortable, practical fit that makes Sony’s wireless headphones easy to wear for extended periods. The HDB 630 is much less interested in making a visual statement. It resembles Sennheiser’s Momentum headphones, with a light frame, compact-looking cups, and a snug fit that holds securely without becoming tiring. Sony has the edge for finish and visual presence; Sennheiser is the understated option for listeners who want their headphones to disappear during a long session.
Design & Functionality
If active noise cancellation is your priority, the Collexion is the stronger pick. Its QN3 and V3 processing system and 12-microphone setup provide exceptionally effective isolation, including a noticeable reduction in nearby voices. Sony also supplies responsive touch controls and a broad Sound Connect feature set, including EQ, DSEE, and 360 Reality Audio. The review found its regular stereo presentation more convincing than the spatial effect, however.
The HDB 630 includes ANC, but it is a supporting feature rather than its central attraction. It handles routine background noise, while Sony does more to quiet a busy commute or flight. Sennheiser’s Smart Control app makes a stronger case for listeners who like to shape their sound: its parametric EQ and crossfeed provide useful listening adjustments. Its touch and wear controls work consistently, though they can take a moment to respond.
Bluetooth
Sony equips the Collexion with Bluetooth 6.0, SBC, AAC, LDAC, and LC3, plus multipoint for switching between two devices. The HDB 630 uses Bluetooth 5.2 and supports aptX Adaptive and aptX HD. Its included BTD 700 USB-C transmitter enables 24-bit/96 kHz wireless playback with a compatible source and was especially effective in the original listening review. The transmitter occupies a USB-C port, and the review notes that you cannot combine a BTD 700 connection with a second Bluetooth device through multipoint. Both packages include a carrying case and a 3.5 mm audio cable. Sennheiser also includes a USB-C audio and charging cable and an in-flight adapter, giving it a more complete travel and listening kit.
Battery Life
Battery life creates another clear divide. Sony rates the Collexion for up to 24 hours with ANC on or 32 hours with ANC off, with up to 1.5 hours of playback from a five-minute quick charge. The HDB 630 offers up to 60 hours per charge. Anyone who travels frequently or forgets to charge their headphones will appreciate Sennheiser’s extra endurance.
Soundstage
Both headphones give music more room than you might expect from closed-back wireless designs, but they organize that space differently. The Collexion presents a wide, coherent stereo image with better placement and scale than Sony’s mainstream 1000X tuning. It draws you into the recording without needing to engage spatial audio. The HDB 630 goes further in separation and depth, particularly with the BTD 700 transmitter. Instruments occupy more distinct positions, and the space between them is easier to follow. Where Sony creates a broad, enveloping picture, Sennheiser makes it easier to locate individual sounds and hear the shape of a performance. For critical listening and intricate recordings, the HDB 630 has the stronger presentation.
Low End
This is the simplest difference to hear. Sony’s bass hits harder, reaches deep into the sub-bass, and puts physical weight behind electronic music and percussion. Its low end can also linger over the lower mids, making busy arrangements sound thick. If you want immediate punch and rumble, the Collexion delivers it. The HDB 630 favors bass definition over force. Notes have shape and texture, with enough extension to support the music, but the default tuning does not supply Sony’s slam. A little EQ can add weight if needed. Sennheiser better suits listeners who want to follow individual bass notes without letting them dominate everything else.
Mids
The Collexion gives vocals a clear, prominent edge, but its wider midrange is recessed. Guitars, keyboards, and other instruments can lose definition beneath the stronger bass. EQ can improve the balance somewhat, though it does not fully change the headphone’s character. The HDB 630 is more even and articulate through the mids. Instruments retain their own space, and vocals sound rich and present without requiring the rest of the arrangement to step back. Its timbre can seem a little flat, but the additional resolution makes it the better choice for vocal arrangements, acoustic music, and anyone listening closely to a mix.
Highs
Sony adds some crispness and bite up top, but its treble falls away quickly. That keeps the presentation easy to approach, although cymbals and ambient details have less room to decay naturally. The HDB 630 sounds airier and more controlled, letting high-frequency sounds extend without becoming piercing. It also contributes to Sennheiser’s stronger sense of height and openness.
Summary
Choose the Sony 1000X THE COLLEXION if you want a premium finish, exceptionally strong ANC, responsive everyday controls, and bass that makes itself felt. It is the more compelling luxury commuter headphone, provided you enjoy a pronounced low end and can accept a recessed midrange. Choose the Sennheiser HDB 630 if sound quality leads your decision. Its precise imaging, clearer mids, controlled treble, extensive sound adjustment, and 60-hour battery life make it the more satisfying headphone for focused listening. The included BTD 700 adds a particularly convincing wireless listening option. For someone choosing primarily by musical detail and balance, the HDB 630 gets the overall recommendation; for isolation and impact on the move, the Collexion is the better fit.
The Sony 1000X THE COLLEXION and the Sennheiser HDB 630 are available at Audio46.
