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popularjk6812 | Staff posted May 22, 2026 01:51 AM
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popularjk6812 | Staff posted May 22, 2026 01:51 AM

Sennheiser HD 660S2 Open-Back Over-Ear Audiophile Headphones $399.95 + Free Shipping

$400

$680

41% off
Amazon
8 Comments 2,368 Views
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Deal Details
Amazon [amazon.com] has Sennheiser HD 660S2 Open-Back Over-Ear Audiophile Headphones on sale for $399.95. Shipping is free.

Don't have Amazon Prime?From Merchant's Product Page:
  • Specs:
    • Driver type: Dynamic, 42mm aluminum voice coil transducers
    • Frequency response: 8 Hz – 41.5 kHz
    • Impedance: 300 Ohms
    • Design: Open-back, over-ear
    • Ear cushion shape: Oval
    • Weight: 0.3 kg (10.6 oz)
    • Enclosure material: Aluminum
    • Connectivity: Wired only
    • Manufactured in Germany & Ireland
  • Includes:
    • HD 660S2 headphones
    • 6.3mm (1/4") cable (1.8m / 5.9 ft)
    • 4.4mm balanced cable (1.8m / 5.9 ft)
    • 6.3mm to 3.5mm adapter
    • Carry pouch
  • Features:
    • Open-back design for spacious soundstage
    • Extended low-end response down to 27.5 Hz
    • Detachable cable system with 1/4" TRS and 4.4mm TRRRS jacks
    • Plush, breathable ear cushions
    • Sound isolation (passive)
    • Compatible with smartphones, music players, and audio interfaces
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon [amazon.com] has Sennheiser HD 660S2 Open-Back Over-Ear Audiophile Headphones on sale for $399.95. Shipping is free.

Don't have Amazon Prime?From Merchant's Product Page:
  • Specs:
    • Driver type: Dynamic, 42mm aluminum voice coil transducers
    • Frequency response: 8 Hz – 41.5 kHz
    • Impedance: 300 Ohms
    • Design: Open-back, over-ear
    • Ear cushion shape: Oval
    • Weight: 0.3 kg (10.6 oz)
    • Enclosure material: Aluminum
    • Connectivity: Wired only
    • Manufactured in Germany & Ireland
  • Includes:
    • HD 660S2 headphones
    • 6.3mm (1/4") cable (1.8m / 5.9 ft)
    • 4.4mm balanced cable (1.8m / 5.9 ft)
    • 6.3mm to 3.5mm adapter
    • Carry pouch
  • Features:
    • Open-back design for spacious soundstage
    • Extended low-end response down to 27.5 Hz
    • Detachable cable system with 1/4" TRS and 4.4mm TRRRS jacks
    • Plush, breathable ear cushions
    • Sound isolation (passive)
    • Compatible with smartphones, music players, and audio interfaces

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Price Intelligence

Model: (NEW) Sennheiser HD 660S2 Wired Audiophile Stereo Headphones

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 5/24/2026, 03:44 PM
Sold By Sale Price
Amazon$399.95
Guitar Center$479.95
Musician's Friend$479.95
Best Buy$499

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8 Comments

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May 22, 2026 03:17 AM
3,904 Posts
Joined Oct 2015
goodness97May 22, 2026 03:17 AM
3,904 Posts
Frequently returned item!
1
May 22, 2026 05:00 AM
130 Posts
Joined Feb 2025
SmilingRiver528May 22, 2026 05:00 AM
130 Posts
Quote from goodness97 :
Frequently returned item!
Yeah, in the era of closing audio stores, amazon has become the best option for auditioning gear
1
1
May 22, 2026 06:14 AM
1,006 Posts
Joined Nov 2017
rcaguy5May 22, 2026 06:14 AM
1,006 Posts
funny I spent 379 for them in 2023
4
May 22, 2026 08:55 AM
376 Posts
Joined Nov 2019
StinktoothMay 22, 2026 08:55 AM
376 Posts
The price is crazy. I can understand wanting the best, but I'm sure you can get 80-90% there for a fraction of the cost. Are Philips SPH9500 that much worse?
5
May 22, 2026 12:57 PM
14,732 Posts
Joined Jul 2006
ben_r_May 22, 2026 12:57 PM
14,732 Posts
Are these the replacement for the HD-650?
1
May 22, 2026 04:50 PM
235 Posts
Joined May 2017
ghost02May 22, 2026 04:50 PM
235 Posts
Quote from rcaguy5 :
funny I spent 379 for them in 2023
Inflation is a thing
May 22, 2026 07:18 PM
1,437 Posts
Joined Nov 2019
slickd888May 22, 2026 07:18 PM
1,437 Posts
Quote from Stinktooth :
The price is crazy. I can understand wanting the best, but I'm sure you can get 80-90% there for a fraction of the cost. Are Philips SPH9500 that much worse?
This is mid tier. Look up HD800S if you think this price is crazy

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May 22, 2026 11:23 PM
112 Posts
Joined Jan 2010
mail123321May 22, 2026 11:23 PM
112 Posts
Quote from ben_r_ :
Are these the replacement for the HD-650?
I have 660s2. get 600, 650 and 660s2 to compare. 600 for classic, HD 650 is slightly thicker and richer, while the 660S2 is the most relaxed and darkest. 660s2 > 650 >600 easy to drive. Ppl hate s2 due to price. when 650 come out, alot of negative review. 600 and 650 were legendary. I picked s2 due to I use for music and youtube while I work.

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