LET'S
COMPARE
LET'S
COMPARE

Making informed decisions easier by providing comprehensive comparisons across various categories.

Quick Links

  • Home
  • FAQ
  • About

Legal

  • Privacy Policy
  • Terms & Conditions
  • Cookie Policy

Contact

[email protected]

© 2026Let's Compare. All rights reserved.

LET'S
COMPARE
  1. Home
  2. /Headphones
  3. /Nothing Headphone (a) vs Sennheiser HD 660S2

Nothing Headphone (a) vs Sennheiser HD 660S2

Verdict

Our overall take, at a glance

Key takeaways

  • Nothing Headphone (a) leads Sennheiser HD 660S2 overall by 46 points (82 vs 36 out of 100).
Nothing Headphone (a) leads overall
Nothing Headphone (a)
82
Sennheiser HD 660S2
36

In-depth analysisAI

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

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)
Video — reviews used (3)

Compares the HD 660S2 to the original and details its sound improvements and comfort features

Generated Jun 28, 2026

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.

Nothing Headphone (a)

Check Price on Amazon

Sennheiser HD 660S2

Check Price on Amazon

Physical Comparison

Weight, side by side

310 g260 g
Nothing Headphone (a)Sennheiser HD 660S2

Nothing Headphone (a) is 50 g (19%) heavier than Sennheiser HD 660S2.

Advertisement

Review Videos

Hand-picked expert reviews for each product

Detailed Specifications

The full spec sheet, side by side

Audio

Feature
Nothing Headphone (a)
Sennheiser HD 660S2
Driver Type
40mm titanium-coated dynamic driver
Dynamic
Driver Size
40 mm
38 mm
Frequency Response
N/A
8-41500 Hz
Impedance
N/A
300
Sensitivity
N/A
104

Noise Cancelling

Feature
Nothing Headphone (a)
Sennheiser HD 660S2
Active Noise Cancelling
Yes
No
Transparency Mode
Yes
No

Wireless

Feature
Nothing Headphone (a)
Sennheiser HD 660S2
Wireless
Yes
No
Bluetooth Version
N/A
Supported Codecs
SBC, AAC, LDAC
N/A
Multipoint Connection
Yes
No

Battery

Feature
Nothing Headphone (a)
Sennheiser HD 660S2
Battery Life (ANC On)
75 h
N/A
Quick Charge
Yes
No

Comfort & Build

Feature
Nothing Headphone (a)
Sennheiser HD 660S2
Weight
310 g
260 g
Folding Design
No
No
Water Resistance
IP52
N/A
Dimensions
N/A
N/A

Connectivity

Feature
Nothing Headphone (a)
Sennheiser HD 660S2
Wired Connection
3.5mm and USB-C
6.35mm + 4.4mm balanced
Detachable Cable
N/A
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.

LET'S
COMPARE

Making informed decisions easier by providing comprehensive comparisons across various categories.

Quick Links

  • Home
  • FAQ
  • About

Legal

  • Privacy Policy
  • Terms & Conditions
  • Cookie Policy

Contact

[email protected]

© 2026Let's Compare. All rights reserved.

Related comparisons

  • Sennheiser HD 660S2 vs Marshall Monitor III ANC
  • Sennheiser HD 660S2 vs Sennheiser Momentum 4
  • Sennheiser HD 660S2 vs Sony WH-1000XM4
  • Sennheiser HD 660S2 vs Sony WH-1000XM6
  • Sennheiser HD 660S2 vs Sennheiser Momentum 5 Wireless
  • Sennheiser HD 660S2 vs Bose QuietComfort Ultra
  • Sennheiser HD 660S2 vs Bose QuietComfort 45
  • Sennheiser HD 660S2 vs Bose QuietComfort Ultra Headphones 2nd Gen
  • All headphones comparisons