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Over-ear headphones in obsidian gold finish, circumaural design with padded ear cups and headband

Sennheiser

Sennheiser MOMENTUM 4 obsidian gold headphone

SKU CH-NT6A-A83G8

Over-ear wireless headphones with 42 mm drivers, hybrid adaptive ANC and up to 60 hours Bluetooth playtime

  • TypeOver the Ear
  • Colorobsidian gold
  • Driver Unit42mm diameter
  • Frequency Response6Hz - 22kHz
  • THD<0.3% (1 kHz / 100 dBSPL)
  • Input ImpedanceActive 470 ohms / Passive 60 ohms
  • Deep dynamic bass driven by 42 mm transducers
  • Hybrid adaptive ANC suppresses ambient noise
  • 60-hour Bluetooth playtime with ANC active
  • Bluetooth 5.2 class 1 for stable wireless link
  • Quick charge: 5 minutes adds 4 hours listening

Sound signature and intended use

The Sennheiser MOMENTUM 4 obsidian gold is a circumaural over‑ear headphone built around 42mm drivers covering 6Hz to 22kHz. Hybrid adaptive ANC and a 106 dB SPL signal‑to‑noise ratio target listeners who want deep dynamic bass and low distortion below 0.3% at 1 kHz. The 60 ohm passive impedance suits portable sources, while the 470 ohm active mode matches the internal amplifier.

Sustained listening behaviour

Bluetooth 5.2 class 1 wireless delivers up to 60 hours of music playback with ANC active at mid volume on an iPhone. The 700 mAh lithium‑ion cell reaches full charge in roughly two hours, and a five‑minute top‑up adds about four hours of playtime; ambient temperatures above 30°C can extend the charging window. Microphone response spans 50Hz to 10kHz for clear calls during long sessions.

Build, connectors and daily fit

Weighing 0.65 lb, the headphones fold flat for transport and charge via a USB‑C socket at 5 V and 800 mA maximum. The Smart Control app and a dedicated voice‑assistant button handle EQ, ANC modes and hands‑free commands without removing the device. Circumaural pads seal around the ears for passive isolation that complements the hybrid ANC system.

Highlights

  • Deep dynamic bass driven by 42 mm transducers
  • Hybrid adaptive ANC suppresses ambient noise
  • 60-hour Bluetooth playtime with ANC active
  • Bluetooth 5.2 class 1 for stable wireless link
  • Quick charge: 5 minutes adds 4 hours listening

Specifications

BrandSennheiser
ModelMOMENTUM 4 obsidian gold
TypeOver the Ear
Colorobsidian gold
Driver Unit42mm diameter
Frequency Response6Hz - 22kHz
THD<0.3% (1 kHz / 100 dBSPL)
Input ImpedanceActive 470 ohms / Passive 60 ohms
Signal to Noise Ratio(SNR)106 dB SPL (1 kHz / 0 dB FS)
Power Supply5 V, 800 mA max, USB charging via USB-C socket
ConnectorYes
Ear CouplingCircumaural
Weight0.65 lb.
Noise CancellingHybrid Adaptive ANC
Wireless TypeBluetooth 5.2 compliant, class 1, 10 mW (max)
BatteryBuilt-in Lithium-Ion rechargeable batteries 700 mAh
Operating TimeUp to 60 hrs music playtime via Bluetooth and with ANC (test condition: iPhone, mid volume level)
Charge TimeApprox. 2 hrs for full charge; 5 min charging for up to 4 hrs playtime; Remark: Ambient temperatures >30°C may lead to extended charging times
Sports Team50Hz-10KHz
Microphone Frequency Response50Hz-10KHz
FeaturesSUPERIOR SOUND EXPERIENCE
- Sennheiser Signature Sound - Powered by Sennheiser's audiophile-inspired 42mm transducer system for exceptional high-fidelity sound.
- Customizable Sound - Listen your way with built-in EQ, presets, sound modes, and Sound Personalization feature, which tailors the audio to your individual hearing - all accessible via the Sennheiser Smart Control App.
- Adaptive Noise Cancellation and Transparency Mode - Advanced noise cancellation automatically adapts your sound to your surroundings. Transparency Mode lets you hear external sounds without removing your hea

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