SKU: 10254483344

Sennheiser HD 660S2 Audiophile Headphone

Sale price$427.48 Regular price$474.98
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Sennheiser HD 660S2 Audiophile HeadphoneSennheiser HD 660S2 Audiophile Headphone As far back as the HD 580, high end Sennheiser headphones have inspired generations with their balanced, natural reproduction. Recognized as benchmarks for neutral audiophile sound, the HD 600, HD 650, and HD 660S all share visible and audible DNA with the HD 660S2. The revised coil of the S2, for instance, now matches the 300 ohm impedance of the legendary HD 600 & HD 650. This new coil also provides higher

Sennheiser HD 660S2 Audiophile Headphone

As far back as the HD 580, high-end Sennheiser headphones have inspired generations with their balanced, natural reproduction. Recognized as benchmarks for neutral audiophile sound, the HD 600, HD 650, and HD 660S all share visible and audible DNA with the HD 660S2. The revised coil of the S2, for instance, now matches the 300-ohm impedance of the legendary HD 600 & HD 650. This new coil also provides higher magnetic force and electrical dampening for cleaner impulse response.
The surround is now more compliant, too, dropping the resonant frequency to 70 Hz. Considerable effort also went into optimizing the airflow around the transducer. There’s more sensitivity over the entire frequency spectrum because the magnet´s air gap works more efficiently now. Taken together, these measures result in even greater precision, speed, and resolution — with double the sound pressure at the lowest frequencies.

Features

  • Uniquely powerful vented magnet system for minimized distortion
  • Ultra-light aluminium voice coil with 300-ohm impedance for excellent impulse response
  • Intimate sound with great timbre and deep, accurate sub bass
  • Plush ear cushions and open design for maximum comfort
  • Outstanding quality designed in Germany, made in Ireland

Specifications

Transducer principle dynamic, open
Transducer size 38 mm
Frequency response 8 – 41,500 Hz
Impedance 300 Ω
Sound pressure level (SPL) 104 dB (1 kHz, 1 Vrms)
Total harmonic distortion (THD) <0.04% (1 kHz, 100 dB)
Ear coupling Over-Ear
Weight 260g
Adapter 6.3 mm (1⁄4inch) to 3.5 mm
Connector 6.3 mm (1⁄4inch) jack plug, 4.4 mm balanced plug
Cable length 1.8m

Shipping Notes
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Exchange/Return Notes
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SKU: 10254483344

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4.3 ★★★★★
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Verified Purchase
Lindsay
Pawtucket, US
★★★★★ 5
Saved my skin during an eczema flare up
This saved my skin! I had an eczema flare on my face, and my usual products weren’t working. A friend recommended the Avene brand and within 3 days of using this rescue barrier serum, my flare was almost completely gone! This saved my face!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
B
Verified Purchase
B Helton
Omaha, US
★★★★★ 1
PLEASE REVIEW — FORMULA CHANGED!!!
I wish I would’ve posted a review PRIOR to the formula changing but just know that I LOVED this serum. I’ve struggled with hormonal acne (PCOS) and eczema for as long as I can remember. Finally, last summer my dermatologist put me on (3) different RX including Spironolactone and Accutane. I was so tired so I stopped everything except for CeraVe cleanser, retinol (Tretinoin) and CeraVe healing ointment. My made up skin routine was working until I used too much Tretinoin and burned my face. I had read great reviews about this product so I thought, I might as well try it — and IT WORKED! I’ve been using this product for almost a year and I loved it. However, 3 weeks ago when I ordered it, I noticed the bottle had a green tint. I could tell after one use that the feel of the serum was different, more watery, not as thick as it used to be. The smell was also different. Still, I kept using it for nearly 2 weeks and I experienced 2 breakouts! Sure enough, I stopped the product and within a few days, my skin was back to normal. I am very upset because as someone who has extremely sensitive skin, this worked but unfortunately, the new formula isn’t for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
M
Verified Purchase
Mosthatedbeauty
Natrona Heights, US
★★★★★ 5
Buy
Color: Glistening Bronze
Im a darkskin girl i love it it gives me a golden glow
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
S
Verified Purchase
Sharon S.
Draper, US
★★★★★ 1
CAUSES INTENSE SKIN PIGMENT ISSUE
Color: #2 ROSE, Color: #2 ROSE
DO NOT BUY UNLESS YOU WANT SPOTTY-BLOTCHY PIGMENT ISSUES! I used the product one time, and got terribly fried/burnt and when the burn healed my skin got very cheetah print spotty blotchy like. Now I am using prescribed cream my dermotologist prescibed to try to heal the pigment issues this product caused. this product is a thick oil, NOT SPF 45-- TRUST ME you do not want this!!! See pictures i'm attaching to this review.
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Reviewed in the United States on May 18, 2026
M
Verified Purchase
Me
Birmingham, US
★★★★★ 4
Glitter
Color: Glistening Bronze
I really did light the way it feels nice and thick.Creamy sparkly, but unfortunately there are cheaper products out there than this.That can probably do the same job
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Reviewed in the United States on March 28, 2026

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