Sennheiser HD 660S2 Headphones

Written by Jaimin Parmar

Jaimin Parmar holds the position of Audio Writer at HeadphoneWEB. As he navigates his journey as a budding author and artist, he has consistently found inspiration in the realm of soundscapes.

Sennheiser HD 660S2 Headphones: A Detailed Review

Introduction

The Sennheiser HD 660S2 headphones are the latest in Sennheiser’s line of high-end audiophile products. These headphones aim to deliver exceptional audio quality and a superior listening experience. For anyone serious about their headphones, the HD 660S2 promises to be a game-changer.

Sennheiser HD 660S2 Headphones

Sennheiser HD 660S2 Headphones
  • Audio Quality
  • Comfort and Fit
  • Connectivity

What’s Inside the Box of Sennheiser HD Consumer Audio 660S2 Headphones?

When you unbox the Sennheiser HD 660S2, you’ll find:

  • 1x Pair of Sennheiser HD 660S2 Headphones
  • 1x 6.35mm Cable
  • 1x 4.4mm Balanced Cable
  • 1x 6.35mm to 3.5mm Adapter
  • 1x User Manual
  • 1x Warranty Card

Buying Guide of Sennheiser HD 660S2 Headphones

Choosing the right headphones involves several factors:

  • Sound Quality: The HD 660S2 offers a detailed and balanced sound signature.
  • Comfort: With velour earpads and an ergonomic headband, these headphones ensure long-lasting comfort.
  • Compatibility: These headphones are compatible with a variety of audio sources, from desktop DACs to portable amps.
  • Impedance: The 300 ohms impedance means they pair well with high-quality amplifiers.

Detailed Review of Sennheiser Consumer Audio HD 660S2 Headphones

Design and Build Quality

The Sennheiser HD 660S2 boasts a sleek and sophisticated design. The build quality is robust, featuring high-quality materials that ensure durability. The headband and earcups are designed for comfort during extended listening sessions.

Sound Quality

These headphones deliver a rich and detailed sound. The frequency response is smooth, covering a wide frequency range. The bass is tight and controlled, the midrange is clear, and the treble is crisp without being harsh. The open-back design provides a spacious soundstage, making the audio feel immersive.

Sennheiser HD 660S2 Headphones
Sennheiser HD 660S2 Headphones

Connectivity and Compatibility

With both 6.35mm and 4.4mm cables, the HD 660S2 can be connected to various audio devices. The impedance of 300 ohms makes them suitable for use with high-end amplifiers and DACs.

Comfort and Fit

The velour earpads and well-padded headband ensure a comfortable fit. The clamping force is just right, providing a secure fit without causing discomfort during long listening sessions.


Key Features of Sennheiser HD 660S2 Headphones

  • Open-back design for a natural soundstage
  • 300 ohms impedance for optimal performance with high-quality amplifiers
  • Velour earpads for comfort
  • 4.4mm balanced cable and 6.35mm cable included
  • Detailed and balanced sound signature

Sennheiser HD 660S2 Headphones
Sennheiser HD 660S2 Headphones

Specifications of Sennheiser HD 660S2 Headphones

FeatureDetails
ModelSennheiser HD 660S2
Impedance300 ohms
Frequency Response10 Hz – 41 kHz
Connectivity6.35mm and 4.4mm cables
Weight260 grams
Ear PadsVelour

Pros & Cons of Sennheiser HD 660S2 Headphones

Sennheiser HD 660S2 Headphones

Sennheiser HD 660S2 Headphones
  • Audio Quality
  • Comfort and Fit
  • Connectivity

Pros

  • Superior sound quality with a balanced frequency response
  • Comfortable for extended listening sessions with velour earpads
  • High-quality build and design
  • Includes both balanced and unbalanced cables

Cons

  • High impedance requires a good amplifier
  • Open-back design may not be ideal for noisy environments

Listening Test of Sennheiser HD 660S2 Headphones

During our listening test, the Sennheiser HD 660S2 headphones excelled across various genres.

The bass was tight and well-defined, the midrange was clear and natural, and the treble was smooth without being too bright.

 The soundstage provided by the open-back design made the listening experience immersive and engaging.


Sennheiser HD 660S2 Headphones
Sennheiser HD 660S2 Headphones

Customer Reviews and Feedback

Customers have praised the Sennheiser HD 660S2 for its audio quality and comfort.

Many users have noted the improvement in sound compared to its predecessors, the HD 600 and HD 650.

Some feedback highlights the need for a good amp to drive these high-impedance headphones properly.


Conclusion

Sennheiser HD 660S2 Headphones

Sennheiser HD 660S2 Headphones
  • Audio Quality
  • Comfort and Fit
  • Connectivity

The Sennheiser HD 660S2 headphones are a top choice for audiophiles looking for high-end sound quality and comfort. With a balanced frequency response, robust build, and comfortable fit, these headphones are ideal for extended listening sessions. If you’re looking for a pair of headphones that deliver exceptional sound and comfort, the Sennheiser HD 660S2 is an excellent investment.

Frequently Asked Questions

Q: Can you provide a detailed review of the Sennheiser HD 660S2 headphones?

A: The Sennheiser HD 660S2 headphones are the successor to the original HD 660S model. They are a part of the 6XX series headphones and offer exceptional sound quality with open-back design for a more immersive listening experience.

Q: How do the HD 660S2 headphones compare to the HD 560S?

A: The HD 660S2 headphones are known for their improved sound quality and comfort compared to the HD 560S model. They offer better clarity, detail, and a more refined sound signature.

Q: Do the HD 660S2 headphones require a headphone amp to drive them?

A: While the HD 660S2 headphones can benefit from a headphone amp to unleash their full potential, they can still be driven by most devices without the need for an additional amp.

Q: What makes the HD 660S2 headphones stand out in terms of design?

A: The HD 660S2 headphones feature a redesigned headband for improved comfort during long listening sessions. The earpads and headband are designed for a comfortable fit without causing any strain on the ears.

Q: How does the HD 660S2 compare to other headphones in the 6XX series?

A: The HD 660S2 headphones offer a unique sound signature that sets them apart from other headphones in the 6XX series. They provide a more dynamic sound with better bass response and overall clarity.

Q: Can you explain the technology used in the HD 660S2 headphones?

A: The HD 660S2 headphones feature a voice coil and magnetic drivers that work together to deliver precise and accurate sound reproduction. The open-back design allows for better airflow around the transducer, resulting in a natural soundstage.

Q: Are the HD 660S2 headphones suitable for EQ adjustments?

A: The HD 660S2 headphones respond well to EQ adjustments, allowing users to customize the sound according to their preferences. They handle EQ changes effectively without introducing distortion or unwanted resonances.

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