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Sennheiser HD 660S2 Open-Back Audiophile Headphones BLACK
Sennheiser HD 660S2 Open-Back Audiophile Headphones BLACK
Sennheiser HD 660S2 Open-Back Audiophile Headphones BLACK
Sennheiser HD 660S2 Open-Back Audiophile Headphones BLACK
Sennheiser HD 660S2 Open-Back Audiophile Headphones BLACK
Sennheiser HD 660S2 Open-Back Audiophile Headphones BLACK
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Sennheiser HD 660S2 Open-Back Audiophile Headphones BLACK
Brand New · Factory Sealed · Sennheiser Authorized Dealer
$799.99
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Free Canada-wide Shipping Order Now : Ships Mon
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  • Low Stock : Order Soon
  • Free shipping
  • 1yr Manufacturer Warranty
  • Pickup available: Richmond Hill, ON
  • 5% Price Promise
Trusted by 150,000+ Canadian customers since 2001
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Sennheiser Discover the HD 660S2: Elevate Your Listening Experience

Introducing the HD 660S2 Headphones, where legendary sound meets contemporary design. Immerse yourself in a world of rich, immersive audio that transcends the boundaries of ordinary listening. Crafted for audiophiles and music enthusiasts, these headphones redefine your perception of music.

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Unmatched Sound Quality: A Sonic Journey Awaits

Delve into a sonic masterpiece with the HD 660S2. Experience extended sub bass that resonates deep within your soul, adding new dimensions to your favorite tracks. The natural, warm sound signature brings instruments and vocals to life, creating an intimate, lifelike audio experience. Each note is delivered with unparalleled precision, making you rediscover your music library.

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Comfort Beyond Compare: Listen for Hours

The HD 660S2 isn’t just about extraordinary sound; it’s also about supreme comfort. Designed for extended listening sessions, these headphones feature plush velour earpads that cradle your ears, providing a cloud-like sensation. The lightweight construction and ergonomic design ensure fatigue-free listening, allowing you to lose yourself in the music for hours on end.

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Designed for Audiophiles, Crafted in Ireland

Engineered with precision in Germany and meticulously handcrafted in Ireland, the HD 660S2 headphones boast a uniquely powerful vented magnet system that minimizes distortion. The ultra-light aluminum voice coil with a 300-ohm impedance delivers exceptional impulse response, capturing the subtlest nuances of every sound. The open-back design creates an optimal listening environment, allowing the music to breathe and envelop you.

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Sennheiser HD 660S vs HD 660S2: Sonic Excellence 

Sennheiser’s HD 660S and HD 660S2, both hailing from Ireland, present audiophiles with nuanced choices. The HD 660S offers a balanced audio profile and exceptional comfort, making it perfect for prolonged listening sessions. In contrast, the HD 660S2 ventures into extended frequency territory, capturing subtle sound nuances, and offers versatility with multiple connector options. Both models embody Sennheiser’s legacy of superior sound quality, ensuring a remarkable auditory experience for discerning listeners.

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Your Journey to Sonic Excellence Begins Here

Embark on a transformative audio journey with the HD 660S2 Headphones. Elevate your music, rediscover your favorite tracks, and experience sound as it’s meant to be heard. Whether you're a seasoned audiophile or a discerning music lover, these headphones promise an unparalleled listening adventure. Dive deeper into legendary sound and let every note resonate with your soul.

Package Contents:

  • HD 660S2 Headphones: Your gateway to sonic bliss
  • Velour Carry Case: Protect your headphones in style
  • 6.3 mm (1⁄4 inch) to 3.5 mm Adapter: Seamless connectivity for various devices
  • Quick Start Guide: Get started on your audio journey

Specifications

  • Transducer Principle: Dynamic, open-back
  • 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 (1⁄4 inch) to 3.5 mm
  • Connector: 6.3 mm (1⁄4 inch) jack plug, 4.4 mm balanced plug
  • Cable Length: 1.8m
  • Country of Origin: Ireland
  • Magnetic Field: 4.5mT

Product Details

  • Sennheiser HD 660S2 
  • Brand New : Factory Sealed
  • UPC : 810091270370 
  • EFLC : 13725
  • Write a review

Warranty

One Year Warranty

  • Parts and Labour Warranty
  • Canada-wide Coverage
  • Sennheiser Authorized
View the detailed warranty policy

Returns

Peace of Mind Purchase

  • Factory-sealed items are fully covered
  • 10-day return window for unopened products
  • Support available if there’s an issue on arrival
View our full return policy
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About Sennheiser

Wireless Full Size Headphones • Full Size Headphones • In-Ear Headphones • Wireless In-Ear Headphones

Sennheiser focuses on personal audio built for everyday listening, with a lineup that can include headphones, earbuds, portable DACs, and digital audio gear designed for clean sound and easy use. Whether you're listening at home, at work, or on the go, these products are made for practical comfort, reliable connectivity, and solid performance. We've been carrying Sennheiser since 2010.

Explore our current Sennheiser selection and best sellers. We offer both new and open-box items, and everything is clearly marked. Popular categories include Wireless Full Size Headphones, Full Size Headphones, In-Ear Headphones.

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What Our Customers are Saying
Real Canadian retailer — 150,000+ customers served
63 weeks ago
★★★★★
“Great service. Clear info on the open-box condition and quick shipping. Speakers sound great!”
— Philippe C.
Recently posted
★★★★★
“Friendly and professional staff that answers all questions and provides helpful information without trying to upsell.”
— Immanuel Y.
62 weeks ago
★★★★★
“Fast shipping, great product. No complaints.”
— Dave
Recently posted
★★★★★
“Lou A. was nice sales guy help me a lot. He give me a good price and also really fast delivery, will buy from here again.”
— Arthur