Sennheiser Bluetooth Open-Ear Headphones, Black, HD6XX
Sennheiser Bluetooth Open-Ear Headphones, Black, HD6XX
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Sennheiser

Sennheiser Bluetooth Open-Ear Headphones, Black, HD6XX

|3 ratings

Key item features

  • Flagship Heritage: Based on Sennheiser's acclaimed 2003-2009 flagship HD 650 headset, these open-ear headphones deliver enhanced audio detail and clarity.
  • Modern Aesthetic: The HD 6XX features a distinctive Midnight Blue design, offering a darker and more dramatic aesthetic compared to the original gray colorway.
  • Improved Connectivity: Equipped with a detachable 6-foot (1.8 m) cable and a standard 3.5mm plug, these headphones provide improved usability and broad compatibility with laptops, phones, and other devices.
  • Optimized Compatibility: A 300-ohm nominal impedance ensures wide compatibility with a diverse range of audio devices, offering flexible usage options.
  • Acoustic Precision: Utilizing an open, dynamic transducer principle, the headphones boast a wide frequency response from 10 Hz to 41 kHz and a very low Total Harmonic Distortion (THD) of less than 0.05%.
  • Lightweight Build: Weighing 9.2 oz (260 g) without the cable, these headphones are lightweight for comfortable wear and are manufactured in Romania.
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Specs

Headphone style, Open-EarWireless, YFeatures, Built-in Microphone, Open CupBrand, SennheiserRec. use, Casual ListeningWorks with, Laptop Computers, Telephones, Digital Audio Players

About this item

Product details

Massdrop x Sennheiser HD 6XX Headphones * Massdrop x Sennheiser * Color: Midnight blue * Transducer principle: Open, dynamic * Frequency response: 10 Hz 41 kHz * THD: <0.05% * Nominal impedance: 300 ohm * Cable length: 6 ft (1.8 m) * Connector: in (3.5 mm) * Weight without cable: 9.2 oz (260 g) * Made in Romania

Sennheiser Bluetooth Open-Ear Headphones, Black, HD6XX

  • Based on Sennheiser's flagship headset from 2003 to 2009, the HD 650, the HD 6XX headphones deliver enhanced detail and clarity
  • Modern Midnight Blue design offers a darker, more dramatic aesthetic compared to the original gray colorway
  • Features a detachable 6foot cable, addressing feedback from the audiophile community for improved usability over the original 10foot cable
  • Equipped with a standard 35mm plug for better compatibility with laptops, phones, digital audio players, and more
  • The 300-ohm nominal impedance ensures compatibility with a wide range of devices, while the detachable 6-foot cable offers convenience and flexibility
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Specifications

Headphone style

Open-Ear

Wireless

Y

Features

Built-in Microphone, Open Cup

Brand

Sennheiser

Warranty

Warranty information

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Customer ratings & reviews

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Showing 1-3 of 3 reviews

Oct 27, 2026
Reviewer name: BrianR
5 out of 5 stars
5 out of 5 stars review

Great Headphones w Shanling M5 Ultra

These headphones were purchased to use with a Shanling M5 Ultra DAP. They seemed a bit under powered using the provided 3.5mm cable. I purchased a 4.4mm balanced cable and they woke up! Contrary to some reviews out there I noticed the difference immediately. I highly recommend these with the 4.4 balanced cable they should be sold with. The M5 Ultra provides 315mW with 3.5 and 1100 mW with 4.4 and it does make a difference.

Review from Sennheiser
Helpful?3X4PXBM70DD42572845671
Jul 12, 2026
Reviewer name: Jimmy James
5 out of 5 stars
5 out of 5 stars review

Highly recommend these cans if you have enough amp

These phones rock. To me this can sounds nothing like the 650. i had a pair for years listening thru a tube amp. Sold those when I bought the 800S combo. Kept reading about folks using 650's as a reference. Bought a new one and ended up sending it back. Sounded just like my ancient ones and after the 800S there was no going back. Heard about the mythical 6XX and stumbled on to it here. I'm your huckleberry for the price. I'm blown away how good these cans sound. I can heartly recommend them to anyone with enough amp or gain to drive them. There is definitely a synergy with my MJ3. Couldn't be happier

Review from Sennheiser
Helpful?3X4PXBM70DD42572845671
May 2, 2026
Reviewer name: Jsputar
5 out of 5 stars
5 out of 5 stars review

6xx

These are serious tools to great sound. Enjoyment for hours on end.

Review from Sennheiser
Helpful?3X4PXBM70DD42572845671
Current price is $249.99
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Sold and shipped by Peak Aura Shop
4.583815028901734 out of 5 stars
4.6 stars out of 5, based on 179 seller reviews(4.6)
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