SKU: 20111700814

Sennheiser HD 660S2 Open Back Headphones

Sale price$179.55 Regular price$199.50
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Sennheiser HD 660S2 Open Back HeadphonesSennheiser HD 660S2 Open Back Headphones The HD 660S2 is the newest version of Sennheiser's legendary "HD 600" series. They feature the same iconic design as their predecessors but with some noticeable sonic tweaks, in particular to enhance the lower bass frequencies with the 660S2s now dropping down to 70Hz. Musical Precision Like their predecessors, the HD 660S2 headphones are crafted for the discerning listener. Each speaker is hand selected and

Sennheiser HD 660S2 Open Back Headphones

The HD 660S2 is the newest version of Sennheiser's legendary "HD 600" series. They feature the same iconic design as their predecessors but with some noticeable sonic tweaks, in particular to enhance the lower bass frequencies with the 660S2’s now dropping down to 70Hz.

Musical Precision

Like their predecessors, the HD 660S2 headphones are crafted for the discerning listener. Each speaker is hand-selected and meticulously paired to ensure consistent sound quality across both channels. The precision-engineered stainless-steel diaphragms deliver an incredibly realistic, true-to-life audio experience.

Open-Back Design for Expansive Sound

With an open-back design, the HD 660S2 headphones provide a wide, more natural, airy sound, getting you as close to a live performance as possible.

Balanced Input Capability

Equipped with both balanced and unbalanced cables, the HD 660S2 optimizes the performance of high-quality headphone amplifiers and audio players with balanced outputs. Balanced cables reduce interference, preserving the purity of the sound. The standard cable features a 6.35mm plug, with a 3.5mm adapter included for convenience.

Built for Comfort

When audio quality is this exceptional, extended listening sessions are inevitable. The HD 660S2 ensures lasting comfort with its ergonomic, elliptical ear cups that naturally conform to your ears. The breathable, soft earpads enhance comfort without becoming sticky or uncomfortable during long use.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20111700814

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4.9 ★★★★★
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Verified Purchase
Jessica Beasley
Massapequa, US
★★★★★ 4
Prom
Suit was a little too big, so had to have it taken in, other than that, it is perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
E
Verified Purchase
Eugene
Boise, US
★★★★★ 2
Small and Stiff, that’s what she said!
Refunded… this thing is cut small, has a short crotch area, like women’s pants and the material although nice is stiff with no give at all… gotta be a skinny dude to wear this one. I suggest a size or 2 up
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Reviewed in the United States on January 15, 2026
J
Verified Purchase
jancie brown
Massapequa, US
★★★★★ 5
Well made
Very well made. Fit 5'5 130lb preteen perfectly for a sneaker ball. The material is thick so keep that in mind if purchasing during a hot month.
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Reviewed in the United States on May 26, 2024
J
Verified Purchase
Jaylene
Port Orchard, US
★★★★★ 5
Perfecto
Muy bonito 😊
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Reviewed in the United States on June 4, 2024
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Verified Purchase
Heilee matlock
Phoenix, US
★★★★★ 1
Do not biy
Unfortunately this material is a great example of getting what you pay for. The fit is off and the material makes it so tacky.
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Reviewed in the United States on March 6, 2025

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