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Sennheiser HD 660S2 Headphones

Sennheiser HD 660S2 Headphones

Regular price €599,00EUR
Regular price Sale price €599,00EUR
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From Audiophile haven to your Ears

From the moment you first experience the HD 660S, the distinction is palpable. Each session further clarifies its exceptional purpose.

The HD 660S delivers audio with meticulous detail, characterized by its deeply authentic bass and crystal-clear highs. This extraordinary sound journey is powered by Sennheiser's advanced open-back design and state-of-the-art transducers, fine-tuned for the discerning audiophile. Crafted with a focus on achieving flawless audio reproduction, these headphones feature a sophisticated diaphragm that eliminates standing waves, ensuring an undistorted listening experience. Perfectly compatible with the finest high-fidelity systems, the HD 660S promises an unparalleled auditory exploration

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Your Desert Island Headphones

Every premium headphone carries its unique character, but imagine having to choose just one.

Have you ever experienced sound so vivid, it felt like the performers were right there with you? The HD 660S2 offers music enthusiasts a deeply personal connection to their beloved tracks and artists, providing an experience that's both immersive and non-fatiguing. Its remarkable resolution and precision bring you closer to the essence of each instrument and vocal, enveloping you in a sound that's both natural and exquisitely balanced, free from any harshness.

The HD 660S2's warm and inviting sound signature, enhanced by its extended sub-bass, transforms listening into a uniquely enjoyable and fulfilling journey. Coupled with unparalleled comfort, it invites you to indulge in endless listening sessions. This headphone melds the finest qualities from various realms, creating an intimate auditory experience you'll never want to be without.

Elevating Your Listening with Sub-Bass

Enhanced sub-bass enriches your audio adventure.

Sub-bass often gets overlooked by audiophiles, dismissed for its potential to overshadow other frequencies. Yet, there's a richness to be discovered beyond the visceral impact of a drum beat. The low B on a 5-string bass and the deepest notes of a concert piano are just the beginning. Enhanced sub-bass not only elevates bass-heavy music but transforms the entire listening experience.

By amplifying the sound pressure at the lowest frequencies while maintaining precision across the board, we've crafted a listening experience where everything feels more spacious. This added depth allows highs to sparkle, deepens the soundstage, and intensifies the emotional impact of the music.

Comfort as Good as the Sound

The HD 660S2's velour earpads are a tactile delight, offering optimal
acoustic positioning without sacrificing comfort. The open-back design
ensures your ears stay cool during marathon listening sessions, while
the lightweight construction and ergonomic headband eliminate any
discomfort. Crafted with superior quality in Ireland, the HD 660S2
promises a listening experience that's as comfortable as it is sonically

Surpassing a Legacy of Excellence

Improving upon a series known for its neutrality was no small feat.
We've made the surround more compliant, lowering the resonant frequency
for even richer lows. Optimizing airflow around the transducer and
enhancing the efficiency of the magnet's air gap has led to increased
sensitivity across the frequency spectrum. These advancements yield
unmatched precision, speed, and resolution, doubling the sound pressure
at the lowest frequencies for an unparalleled auditory experience.

What's in the box?

  • HD 660S2 headphones
  • 6.3 mm cable (1.8 m), 4.4 mm cable (1.8 m)
  • 6.3 mm to 3.5 mm adapter
  • Carry pouch

Technical Data

  • Transducer Principle: Dynamic, open
  • Transducer Size: 38 mm
  • Frequency Response: 8 Hz - 41,500 Hz
  • Impedance: 300 Ω
  • Sound Pressure Level (SPL): 104 dB (1 V)
  • Total Harmonic Distortion (THD): < 0.04% (1 kHz, 100 dB)
  • Style: Over-ear
  • Weight: 260 g
  • 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: 1.8 m
  • Magnetic Field: 2.5 mT

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