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fullspecs

Best For

Best for Wide Soundstage
Sennheiser HD 700
Better Bass Performance
Sennheiser HD 660S2
Best for Long Listening
Sennheiser HD 660S2
Best for Spacious Music
Sennheiser HD 700
Best Cable Options
Sennheiser HD 660S2

The Sennheiser HD 700 and HD 660S2 are both open-back wired headphones designed for serious listening, but they take different approaches to sound. The HD 700 uses a 150-ohm design with a wide 8 Hz–44 kHz frequency response and is tuned for a spacious, warm and balanced presentation. The HD 660S2 uses 300-ohm impedance, 38 mm dynamic drivers and emphasizes intimate sound with deep, accurate sub-bass. Both are lightweight and designed for long listening sessions, while the HD 660S2 also includes multiple cable options and a carry pouch. Your choice largely depends on whether you prioritize a wider soundstage or richer low-frequency performance.

Verdict

The Sennheiser HD 700 is better suited to listeners who value a spacious soundstage, detailed stereo presentation and an airy open-back experience. The HD 660S2 is a better fit for users who prefer a more intimate presentation with stronger, more controlled sub-bass and flexible connectivity through its included cables. For classical, acoustic and spacious recordings, the HD 700 has an appealing design, while the HD 660S2 is particularly suitable for modern music where low-end detail matters.

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Specification
Price
Rs.54,990.00
Rs.55,000.00
Brand
Sennheiser
Sennheiser
Model No
HD 660S2
HD 700
Wired / Wireless
Wired Headphone Specification
Wired Headphone Specification
Headphone Type
Over Ear
Over Ear
Magnet Type
Dynamic
Neodymium
Driver Diameter
38 mm
NA
Impedance
300 ohm
150 Ohms
Sensitivity
104 dB SPL
105 dB/mW
Frequency Response
8 Hz -41500 Hz
8 Hz - 44,000 Hz
Maximum Power Input
NA
500 mW
Noise Cancelling
AMBIENT
NA
Available Colors
Black
Black, Grey
Connector Plating
3.5 mm
3.5 mm Gold Plated Jack
Cable
Tangle- Flat Cable
3 m
Weight
260 Gm
Approx 270 g
Other Features
Plush ear cushions and open design for maximum comfort.
Outstanding quality designed in Germany, made in Ireland.
Intimate sound with great timbre and deep, accurate sub bass.
Uniquely powerful vented magnet system for minimized distortion.
Ultra-light aluminium voice coil with 300-ohm impedance for excellent impulse response.
- Open, circumaural dynamic stereo headphones
- Outstanding soundstage with a warm and balanced audio reproduction
- Specially-tuned, highly efficient drivers capable of delivering high sound pressure levels
- Highly optimised ventilated magnet system minimises air turbulence and harmonic, intermodulation distortion
- Open-back ear cups facilitate transparent sound while showcasing cutting-edge industrial design
- Ultra comfortable and luxurious velour earpads, silicone-treated headband for minimal headband resonance
- Innovative and highly aesthetic dual-material yoke for better stability and eliminates negative influences to sound quality
- Very low THD achieved by top-notch and extremely stable internal damping element
- Symmetrical and detachable silver-plated oxygen-free four-wire copper cable for better conductivity at higher frequencies
- Designed in Germany, assembled in Ireland
- 2 year warranty
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Frequently Asked Questions

Which product is better for gaming?
The HD 700 may be more suitable for gaming where a spacious soundstage is important, thanks to its open-back design and emphasis on a wide, transparent presentation.
Which headphone has better bass?
The HD 660S2 is designed with an emphasis on deep, accurate sub-bass, making it the more suitable option for listeners who prioritize low-frequency performance.
Are the Sennheiser HD 700 and HD 660S2 wireless?
No. Both are wired open-back headphones and do not include Bluetooth connectivity.
Which headphone has higher impedance?
The HD 660S2 has a 300-ohm impedance, while the HD 700 has a 150-ohm impedance. The HD 660S2 may benefit more from a suitable headphone amplifier.
Which headphone is lighter?
The HD 660S2 weighs approximately 260 g, while the HD 700 weighs approximately 270 g, making the HD 660S2 slightly lighter.
Which headphone has a wider frequency response?
The HD 700 has an 8 Hz–44,000 Hz frequency response, compared with 8 Hz–41,500 Hz for the HD 660S2.

Top Differences

  • Noise Cancelling: NA vs AMBIENT
  • Driver Size: NA vs 38 mm
  • Weight: Approx 270 g vs 260 Gm
  • Impedance: 150 Ohms Vs 300 ohm
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