Sennheiser HD 660S2 Review

Sennheiser, a trailblazer in the audio industry, introduces the HD 660S2, the latest addition to its esteemed HD series. Designed for discerning audiophiles, the HD 660S2 promises an unparalleled listening experience with advancements in technology and craftsmanship. This comprehensive review will delve into the specifications, pros and cons, overall rating, explore similar products, and conclude with final thoughts on the Sennheiser HD 660S2.

Specifications:

1. Type: Over-Ear, Open-Back
2. Driver Type: Dynamic
3. Frequency Response: 6 Hz – 51 kHz
4. Impedance: 150 Ohms
5. Sound Pressure Level (SPL): 104 dB
6. Total Harmonic Distortion (THD): <0.04% (1 kHz, 100 dB)
7. Connector: 6.3mm / 1/4″ stereo plug
8. Weight: 260 grams (without cable)

Pros:

1. Exceptional Sound Quality:

   • The HD 660S2 builds upon the legacy of Sennheiser’s renowned HD series, delivering an exceptional audio experience. The open-back design contributes to a spacious soundstage, allowing users to immerse themselves in rich, detailed sound.

2. Precision Engineering:

   • Sennheiser’s commitment to precision is evident in the HD 660S2. From the high-quality dynamic drivers to the meticulously crafted earcups, every element is designed to ensure accurate and faithful audio reproduction.

3. Comfortable Design:

   • The lightweight construction and comfortable ear cushions make the HD 660S2 suitable for extended listening sessions. The open-back design also minimizes heat build-up, enhancing overall comfort.

4. Versatile Connectivity:

   • The headphones come with a 6.3mm stereo plug, ensuring compatibility with a wide range of audio sources. Audiophiles can enjoy their favorite music through high-quality amplifiers for an enhanced listening experience.

5. Replaceable Components:

   • Sennheiser’s commitment to sustainability and user-friendliness is showcased in the HD 660S2, as key components like ear cushions and cables are replaceable, ensuring the longevity of the product.

Cons:

1. Open-Back Limitations:

   • While the open-back design contributes to a spacious soundstage, it also allows sound to leak in and out. This limits the suitability of the HD 660S2 for environments where noise isolation is crucial.

2. High Impedance:

   • With an impedance of 150 Ohms, the HD 660S2 may benefit from a dedicated headphone amplifier to fully unlock its sonic potential. This adds an additional investment for users without such equipment.

Overall Rating: 4.9/5

The Sennheiser HD 660S2 earns an impressive overall rating of 4.9 out of 5. Its exceptional sound quality, precision engineering, and comfortable design contribute to its high score. While considerations like open-back limitations and impedance exist, they are outweighed by the headphones’ overall performance.

Similar Products:

1. Beyerdynamic DT 1990 Pro:

   • The Beyerdynamic DT 1990 Pro is a high-end open-back headphone known for its detailed sound reproduction. It offers versatility with replaceable components and is favored by audio professionals.

2. Audeze LCD-2 Classic:

   • The Audeze LCD-2 Classic is an open-back planar magnetic headphone celebrated for its planar magnetic technology, delivering a unique and immersive sound experience.

Final Words:

In conclusion, the Sennheiser HD 660S2 stands as a testament to Sennheiser’s commitment to audio excellence. Audiophiles seeking a refined and immersive listening experience will find the HD 660S2 to be a worthy investment, offering a harmonious blend of precision engineering and sonic brilliance.

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