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    Sennheiser HD 660S2 Open‑Back Hi-Res Audiophile Headphones
    Sennheiser HD 660S2 Open‑Back Hi-Res Audiophile Headphones
    Sennheiser HD 660S2 Open‑Back Hi-Res Audiophile Headphones
    Sennheiser HD 660S2 Open‑Back Hi-Res Audiophile Headphones

    Sennheiser HD 660S2 Open‑Back Hi-Res Audiophile Headphones

    ₹29,990 ₹54,990
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    Introduction: The Evolution of a Legendary Reference Series

    The Sennheiser HD 660S2 Open-Back Hi-Res Audiophile Headphones represent the next evolution in Sennheiser’s iconic 600-series. Designed for listeners who demand accuracy, realism, and emotional depth, the HD 660S2 stands among the most respected reference-grade headphones available for serious audiophile listening.

    Engineered with a refined 300-ohm transducer system, improved airflow, and extended sub-bass performance, the HD 660S2 delivers a deeply immersive experience that brings you closer to the original recording.


    Sub bass expands the entire sound

    Open-Back Acoustic Design for Expansive Soundstage

    At the heart of the HD 660S2 is its open-back acoustic architecture. This design allows air to move freely through the driver system, creating a natural and spacious sound field that closed-back headphones cannot replicate.

    • Wide, speaker-like soundstage
    • Precise instrument positioning
    • Improved depth and layering
    • Natural ambience and room cues

    The updated 300-ohm voice coil improves electrical damping and impulse response, resulting in cleaner transients, enhanced micro-detail, and more impactful low-frequency reproduction.


    Neutral, Natural Sound Signature for Critical Listening

    The HD 660S2 is tuned for neutrality and tonal accuracy. These are reference-grade headphones designed to reproduce music exactly as it was intended, without artificial coloration.

    • Clean and articulate midrange
    • Smooth, extended treble response
    • Controlled mid-bass
    • Deeper, more authoritative sub-bass

    This balanced tuning makes the HD 660S2 ideal for long, fatigue-free listening while still revealing fine nuances and emotional detail in recordings.


    Your new desert island headphone

    Built for High-Resolution Audio Performance

    Designed for lossless and high-resolution music, the HD 660S2 features a wide frequency response from 8 Hz to 41.5 kHz with extremely low distortion.

    • Channel-matched drivers
    • Excellent tonal balance
    • Fast transient response
    • Accurate spatial imaging

    This makes the HD 660S2 suitable for home hi-fi systems, studio monitoring, mixing, mastering, and critical listening environments.


    Legendary 300-Ohm Performance That Scales with Better Gear

    The refined 300-ohm aluminum voice coil allows the HD 660S2 to scale exceptionally well with high-quality DACs and headphone amplifiers.

    • Lower noise floor
    • Improved dynamic range
    • Superior instrument separation
    • Greater headroom and control

    This makes the HD 660S2 an excellent long-term investment for listeners building or upgrading serious audio systems.


    Premium Build Quality with Irish Craftsmanship

    Manufactured in Ireland, the HD 660S2 reflects Sennheiser’s commitment to precision engineering and durability.

    • Stainless steel mesh for controlled airflow
    • Lightweight yet rigid chassis
    • Matched driver pairs for consistency
    • Long-term structural reliability

    Every component is built to maintain acoustic integrity over years of use.


    How do you one-up a line of legends?

    Exceptional Comfort for Long Listening Sessions

    Comfort is critical for audiophile listening, and the HD 660S2 is engineered for extended wear without fatigue.

    • Lightweight 260 g design
    • Plush velour ear pads
    • Breathable open-back airflow
    • Balanced headband pressure

    This design ensures physical comfort even during multi-hour listening sessions.


    High-Quality Detachable Cables for Lossless Signal Transfer

    The HD 660S2 includes premium detachable cables for flexible, high-fidelity connectivity.

    • 6.3 mm single-ended cable
    • 4.4 mm balanced cable
    • 6.3 mm to 3.5 mm adapter

    Balanced connectivity provides lower interference, improved channel separation, and enhanced dynamic performance.


    Engineered for Audiophiles, Creators & Professionals

    The HD 660S2 is tailored for listeners who prioritize accuracy over exaggerated consumer tuning.

    • Audiophiles and collectors
    • Music producers and sound engineers
    • Home hi-fi enthusiasts
    • Studio and mastering professionals

    Ideal Pairing with High-End Audio Equipment

    To unlock the full potential of the HD 660S2, pairing with a dedicated DAC or headphone amplifier is recommended.

    • Desktop headphone amplifiers
    • Hi-fi stereo systems
    • Professional audio interfaces
    • High-resolution music players

    Who Should Buy the Sennheiser HD 660S2?

    • Listeners seeking reference-grade open-back headphones
    • Users upgrading to 300-ohm audiophile headphones
    • Professionals needing accurate studio monitoring
    • Music lovers focused on realism and tonal balance

    Conclusion – Is the Sennheiser HD 660S2 Worth It?

    The Sennheiser HD 660S2 Open-Back Hi-Res Audiophile Headphones combine decades of acoustic expertise with modern refinements in bass extension, transient response, and comfort.

    With its spacious soundstage, natural tonality, and reference-grade precision, the HD 660S2 remains one of the most trusted choices for serious music lovers looking for authentic, emotionally engaging sound reproduction.

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    Returns

    - We Offer 7-Day Return & Replacement Policy On All Physical Products.


    - Manufacturer Warranty Can Be Availed Post 7 Days.

    - We Offer Easy No-Hassle Return Pickup Option Directly At Your Doorstep.

     

    Warranty 
    - This Product comes with 2 Year Warranty in India.

    - We are always there if any help is needed while claiming warranty.

     

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