Sennheiser HDB 630 vs Sennheiser HD 660S2

Updated Nov 2026 · Scored by the Let’s Compare Data Engine · How we score

For most buyers the Sennheiser HDB 630 is the better pick — it scores 88/100 to the Sennheiser HD 660S2's 20, leading on Noise Cancelling and Wireless. Choose the Sennheiser HD 660S2 instead if comfort & build matters most to you, where it comes out ahead.

Sound quality isn't scored yet (we have no measured audio data), so the score covers features, battery, noise cancelling and build.

Verdict

Our overall take, at a glance

Sennheiser HDB 630 leads overall

Sennheiser HDB 630

Sennheiser HD 660S2

Watch-outs

Compromises to know before you buy

Sennheiser HDB 630

No notable compromises found.

Sennheiser HD 660S2

No microphone — you can't take calls.

Winner by category for Sennheiser HDB 630 vs Sennheiser HD 660S2
Category	Sennheiser HDB 630	Sennheiser HD 660S2	Winner
Noise Cancelling	96	0	Sennheiser HDB 630
Wireless	94	4	Sennheiser HDB 630
Battery	98	0	Sennheiser HDB 630
Comfort & Build	42	58	Sennheiser HD 660S2
Connectivity	96	4	Sennheiser HDB 630

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Nov 2026.

Sennheiser HDB 630

The Sennheiser HDB 630 is a pair of premium wireless over-ear headphones designed primarily for listeners who prioritize neutral, accurate sound reproduction over bass-heavy tuning. Released under Sennheiser's consumer audio arm, the headphones combine active noise cancellation with long battery life, custom app support featuring parametric EQ, and wireless dongle connectivity options. They are aimed at audiophiles and sound-conscious users looking for high-fidelity Bluetooth playback for daily use.

Best for Listeners wanting accurate sound tuning rather than heavy bass enhancementBest for Users who prefer deep audio customization through parametric EQ and stable wirel

Pros

Balanced, sound-first tuning tailored for acoustic accuracy
Companion app support with parametric EQ customization
Dedicated wireless dongle connectivity included for versatile pairing
Long battery life for extended listening

Cons

Faces stiff competition from established ANC rivals like Sony, Bose, and Apple

Sennheiser HD 660S2

The Sennheiser HD 660S2 is a reference headphone model known for its clear, detailed, and warm sound signature. The design includes rich black velour earpads, and the headphones are noted for being lightweight. It provides impressive vocal clarity in the midrange.

Best for vocal trackingBest for classical musicBest for rock

Pros

Features a fuller and warmer bass response than the original HD 660S
The sound is described as clear, crisp, and detailed without sounding overly analytical
Provides excellent detail and separation, with vocals prominently featured
Is noted for being comfortable for long listening sessions due to light weight and earpads

Cons

Can have a rather tight clamping force out of the box
May not be suitable for genres requiring extremely thunderous bass (e.g., EDM or rap)

Value for Money

Which is the better deal for the price

Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.

Sennheiser HDB 630

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Sennheiser HD 660S2

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Physical Comparison

Weigh them up, then compare real dimensions in 3D

Sennheiser HDB 630Sennheiser HD 660S2

Sennheiser HDB 630 is 51 g (20%) heavier than Sennheiser HD 660S2.

Review Videos

Hand-picked expert reviews for each product

Detailed Specifications

The full spec sheet, side by side

Noise Cancelling

Feature	Sennheiser HDB 630	Sennheiser HD 660S2
Active Noise Cancelling	Yes	No
Transparency Mode	Yes	No

Wireless

Feature	Sennheiser HDB 630	Sennheiser HD 660S2
Wireless	Yes	No
Bluetooth Version		N/A
Supported Codecs	SBC, AAC, aptX, aptX HD, aptX Adaptive	N/A
Multipoint Connection	Yes	No

Battery

Feature	Sennheiser HDB 630	Sennheiser HD 660S2
Battery Life (ANC On)	60 h	N/A
Quick Charge	Yes	No

Comfort & Build

Feature	Sennheiser HDB 630	Sennheiser HD 660S2
Weight	311 g	260 g16% less
Folding Design	No	No
Water Resistance	N/A	N/A
Dimensions	18 × 19.5 × 5.1 cm	15 × 20 × 10 cm

Connectivity

Feature	Sennheiser HDB 630	Sennheiser HD 660S2
Wired Connection	USB-C, 3.5mm	6.35mm + 4.4mm balanced
Detachable Cable	Yes	Yes
Built-in Microphone	Yes	No

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

Frequently Asked Questions

Common questions about Sennheiser HDB 630 vs Sennheiser HD 660S2 comparison

Based on our overall comparison score, Sennheiser HDB 630 rates higher at 82/100 versus 24/100 for Sennheiser HD 660S2 — a 58-point lead. Sennheiser HDB 630 is the stronger overall pick, though the right choice still depends on which specs matter most to you; the full spec table above breaks down every difference.

Sennheiser HDB 630 and Sennheiser HD 660S2 are compared side by side above across every spec in the headphones category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 82/100 for Sennheiser HDB 630 and 24/100 for Sennheiser HD 660S2.

If you want the higher-rated headphones option overall, Sennheiser HDB 630 (82/100) edges out Sennheiser HD 660S2 (24/100). But if Sennheiser HD 660S2 is cheaper or stronger on the specific specs you care about, it can still be the better buy — use the spec table and strengths profile above to decide.