Unsupported Browser

The web browser that you are currently using is no longer supported, and as such features of this website may not work as expected. We advise you to update to a currently supported browser (such as Chrome, Edge, or Firefox) to improve your security, speed, and overall experience.

Trustscore 4.9
Log in / Sign up

As a AV.com member you can quickly check out, view and track your previous orders, and choose to receive our latest offers and deals.
  • TVs
      thumbnail

      All TVs

      • 4K TVs
      • OLED TVs
      • QLED TVs
      • 8K TVs
      thumbnail

      TVs By Size

      • 32 Inch & Under
      • Up to 50 Inch
      • Up to 65 Inch
      • Above 65 Inch
    • thumbnail

      TV Speakers

      • Soundbars
      • Active Speakers
      • AV Receivers
      • Multi-room
      • Speaker Packages
    • thumbnail

      Media & Streaming

      • Blu-ray Players
      • Smart TV Boxes
      • Gaming
      • Streaming Setups
    • TV Units

      • TV Stands
      • Corner TV Units
      • TV Stands with Mounts
    • thumbnail

      TV Accessories

      • Wall Brackets
      • HDMI Cables
      • Remotes

      TV Clearance

    • Popular Brands

      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
  • Home Cinema
      thumbnail

      TVs & Projectors

      • Televisions
      • Projectors
      • Projector Screens
      thumbnail

      Home Cinema Packages

      • AV Bundles
      • Home Cinema System Builder
    • thumbnail

      Amps & Receivers

      • AV Power Amplifiers
      • AV Processors / Preamplifiers
      • AV Receivers / Amplifiers
      • Subwoofer Amplifiers
    • thumbnail

      Home Cinema Speakers

      • Speaker Packages
      • Atmos Speakers
      • Centre Speakers
      • Satellite Speakers
      • Soundbars
      • Subwoofers
    • thumbnail

      Home Cinema Accessories

      • Cables
      • Wall Brackets
      • Speaker Mounts
      • Stands
      • Remotes

      Home Cinema Clearance

    • Popular Brands

      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
  • HiFi
      thumbnail

      HiFi Systems

      • HiFi Bundles
      • Mini HiFi Systems
      • Turntable Systems
      • Wireless Systems
      • Portable Media Players
      • Radios
      • HiFi System Builder
    • thumbnail

      HiFi Separates

      • Amplifiers
      • CD Players
      • DACs
      • Tuners, DAB / Internet Radio
      • Streaming Separates
    • thumbnail

      HiFi Speakers

      • Bookshelf Speakers
      • Floorstanding Speakers
      • Standmount Speakers
      • Active Speakers
      • Wireless Speakers
      • Subwoofers
    • thumbnail

      Record Players

      • Turntables
      • Turntable Systems
      • Accessories
      • Vinyl Storage
      • Cartridges
      • Record Cleaning
      thumbnail

      HiFi Accessories

      • Power Supplies
      • Furniture
      • Remotes
      • Audio Cables
      • Speaker Stands
      • Speaker Wall Brackets
      • Spikes & Feet
      • Acoustic Treatment

      HiFi Clearance

    • Popular Brands

      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
  • Speakers
      thumbnail

      Home Cinema Speakers

      • Speaker Packages
      • Atmos Speakers
      • Centre Speakers
      • Satellite Speakers
      • Soundbars
      • Subwoofers
      • Speaker Package Builder
    • thumbnail

      Wireless Speakers

      • Smart Speakers
      • Multi-Room
      • Bluetooth Speakers
      • Portable Speakers
      thumbnail

      HiFi Speakers

      • Bookshelf Speakers
      • Floorstanding Speakers
      • Standmount Speakers
      • Active Speakers
      • Subwoofers
    • thumbnail

      Installation Speakers

      • In Ceiling Speakers
      • In Wall Speakers
      • On Wall Speakers
      • Outdoor Speakers
    • thumbnail

      Speaker Accessories

      • Speaker Cables
      • Speaker Grilles
      • Speaker Hoods
      • Inert Filler
      • Speaker Stands
      • Speaker Switching Units
      • Speaker Wall Plates
      • Acoustic Treatment

      Speaker Clearance

    • Popular Brands

      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
  • Cables
      thumbnail

      Audio Cables

      • Speaker Cables
      • Headphone Cables
      • Coaxial Cables
      • Optical Cables
      • Stereo Phono / RCA Cables
      • Aux Cables
      • Subwoofer Cables
      • XLR & DIN Cables
    • thumbnail

      Custom Made Cables

      • Custom Made Speaker Cables
    • thumbnail

      Video & Data Cables

      • Aerial / Satellite Cables
      • Ethernet Cables
      • HDMI Cables
      • USB Cables
      thumbnail

      Power Cables

    • thumbnail

      Cable Accessories

      • Adapters & Couplers
      • Cable Terminations
      • Cabling
      • Cable Ties
      • Cable Trunking

      Cable Clearance

    • Popular Brands

      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
  • Headphones
      thumbnail

      All Headphones

      • Wireless Headphones
      • Noise Cancelling
      • Closed Back
      • Open Back
      • Over Ear
    • thumbnail

      Earphones

      • Wireless Earphones
      • Wired Earphones
    • thumbnail

      Amplifiers

      • Headphone Amps
      • DACs
      • Media Players
    • thumbnail

      Gaming Headsets

      • Gaming Headphones
      • Gaming Earphones
    • thumbnail

      Headphones Accessories

      • Headphone Adapters
      • Headphone Cables
      • Headphone Spares
      • Headphone Stands

      Clearance Headphones

    • Popular Brands

      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
  • Furniture
      thumbnail

      TV Units

      • TV Stands
      • Corner TV Units
      • Floorstanding TV Stands
      • TV Stands with Mount
    • thumbnail

      Brackets & Mounts

      • TV Brackets
      • Soundbar Brackets
      • Speaker Wall Brackets
      • Projector Mounts
      • Mobile Device Mounts
    • thumbnail

      Speaker Stands

      • Centre Speaker Stands
      • Desk Speaker Stands
      • Satellite Speaker Stands
      • Bookshelf Speaker Stands
      • Floor Speaker Stands
      thumbnail

      HiFi Furniture

      • HiFi Stands
    • thumbnail

      Other Furniture

      • Home Office
      • Occasional Furniture
      • Storage & Shelving

      Furniture Clearance

    • Popular Brands

      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
  • Accessories
      thumbnail

      System Tweaks

      • Accessory Cases
      • Cleaning Accessories
      • DACs
      • Power Supplies
      • Power Conditioning
      • Remotes
      • Spikes & Isolation Feet
      • TV Aerial / Sky Accessories
      • Wireless Accessories
    • thumbnail

      Turntable Accessories

      • Turntable Cartridges
      • Turntable Headshells
      • Headshell Leadwires
      • Phono Stages
      • Replacement Styli
      • Turntable Tonearms
      • Record Cleaning / Care
      • Vinyl Storage
    • thumbnail

      Speaker Accessories

      • Speaker Cables
      • Speaker Grilles
      • Speaker Hoods
      • Inert Filler
      • Speaker Stands
      • Speaker Switching Units
      • Speaker Wall Plates
      • Acoustic Treatment
    • thumbnail

      Headphone Accessories

      • Headphone Adapters
      • Headphone Cables
      • Headphone Spares
      • Headphone Stands
      thumbnail

      Cable Accessories

      • Cable Terminations
      • Adapters & Couplers
      • Cabling
      • Cable Ties
      • Cable Trunking
      • Wall Plates
      • Banana Plugs

      Clearance Accessories

    • Popular Brands

      • Popular Brand
      • Popular Brand
      • Popular Brand
      • Popular Brand
  1. Home >
  2. Headphones >
  3. All Headphones >
  4. Open Back >
  5. Sennheiser HD 660S Dynamic Open Back Headphones

Sennheiser HD 660S Dynamic Open Back Headphones

  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
  • Sennheiser HD 660S Dynamic Open Back Headphones
prev next
This product is currently not available for purchase

Buy this Nearly New for £339.00 >

Key Features

  • Sound for the passionate music enthusiast
  • Cutting-edge Sennheiser technology
  • Supreme connectivity
  • Designed for high-end comfort
  • The look of sophistication
Questions? Email [email protected] or call 01706 878444

Sennheiser HD 660S Dynamic Open Back Headphones Overview

Sennheiser

A new audiophile versatility

The new HD 660 S lets you enjoy sophisticated audiophile sound in even more listening situations. The successor of the legendary HD 650 excels with the improved performance of its new transducer design. Thanks to its lower impedance, it delivers reference-class sound also when connected to hi-res mobile players, thus offering much greater versatility. The HD 660 S is an elegantly designed piece of high-quality engineering that indulges the demanding listener with aural precision and great wearing comfort.

Product Ref: 209583

Similar Products

Previous Image
  • SubZero HFH100 Hi-Fi Headphones With Detachable Cable

    SubZero HFH100 Hi-Fi Headphones With Detachable Cable

    £39.99
  • SubZero DJH200 Professional DJ Headphones

    SubZero DJH200 Professional DJ Headphones

    £39.99
Next Image
  • Comments from customers who bought this item:

  • Trustpilot

Full Description

View Full Description

A new audiophile versatility

The new HD 660 S lets you enjoy sophisticated audiophile sound in even more listening situations. The successor of the legendary HD 650 excels with the improved performance of its new transducer design. Thanks to its lower impedance, it delivers reference-class sound also when connected to hi-res mobile players, thus offering much greater versatility. The HD 660 S is an elegantly designed piece of high-quality engineering that indulges the demanding listener with aural precision and great wearing comfort.

<b>Sound for the passionate music enthusiast</b>

Sound for the passionate music enthusiast

Made for the demanding listener, the HD 660 S surpasses the exceptional performance of its predecessor, the legendary HD 650. With a crisp bass, excellent mid-frequency response, and a gentle, pleasantly natural treble, the HD 660 S has an expressiveness that immerses you in every emotion and nuance of music. Still, it always stays exceptionally accurate and transparent.

<b>Cutting-edge Sennheiser technology</b>

Cutting-edge Sennheiser technology

The HD 660 S features a new transducer design developed by Sennheiser. This results in improved control of the diaphragm movements thanks to a specially manufactured precision stainless steel fabric, which is adapted to the contour of the diaphragm. Extremely light aluminum voice coils ensure the highest impulse fidelity. The transducers are carefully selected and paired by hand to ensure consistently narrow (±1 dB) tolerances.

<b>Supreme connectivity</b>

Supreme connectivity

The HD 660 S has been created to enjoy music in supreme quality and from many different audio sources. Thanks to its low impedance it also offers reference-class fidelity with hi-res mobile players. Naturally, the HD 660 S reveals its full potential when it is connected to the balanced outputs of a dedicated headphone amplifier such as the HDV 820 or to the balanced output of a mobile digital audio player. Accordingly, it comes with a choice of cables for just about any occasion. All cables are made of highly conductive OFC copper, featuring very low handling noise and sturdy para-aramid reinforcement.

<b>Designed for high-end comfort</b>

Designed for high-end comfort

Everything about the HD 660 S makes listening a pure pleasure – not least its strong yet lightweight open construction. The elliptical ear cups are shaped to follow the anatomy of the ear, while thick padding on the headband and the replaceable ear cushions guarantee hours and hours of listening in supreme comfort.

<b>The look of sophistication</b>

The look of sophistication

The pure and effortless sound of the HD 660 S is reflected in its new matte black and anthracite design. It is a high-end aesthetic that embraces both timeless elegance and contemporary style – uncompromising in its craftsmanship, like everything about the HD660S.

Wearing StyleHeadband
ColourMatte Black
Frequency Response (Headphones)9 – 41,500 Hz
Sound Pressure Level (SPL)104 dB
THD, Total Harmonic Distortion< 0,04%
Contact Pressure6.0 N ± 1 N
Ear CouplingCircumaural
Connector6.35 mm / 4.4 mm Pentaconn
Cable Length3 m
Transducer principleDynamic, Open
Nominal Impedance150 Ω
Weight w/o cable260 g
Trustpilot Logo
Trustpilot Stars
TRUSTSCORE 4.9
Apple Pay image Visa image Mastercard image Payment imageFinance payment image Payment card image Paypal image
MasterCard SecureCode
Verified by Visa
American Express SafeKey
  • Televisions
  • AV Receivers
  • HiFi Amplifiers
  • Speakers
  • Subwoofers
  • Turntables

AV.com

Registered address: Holgate Park Drive, York, United Kingdom, YO26 4GN (This is not AV.com's postal address, this can be found here) UK company number 03113256 VAT number 552 0332 82 AV.com, which was previously known as AVOnline, is owned and operated by Gear4music Limited. Gear4music is owned by Gear4music (Holdings) plc, a London Stock Exchange listed business with over 500 staff and revenues of approximately £150m.
Click here to visit our Investor Website.

Accounts

Trade Account

Education Account

Log in

Information

Start your return

Cancel your order

Careers

Terms and Conditions

Finance FAQs

Privacy and Cookie Policy

Site Map

Modern Slavery Statement

Switch to Mobile site

© AV.com 2021-2023

Select your country and language to see local prices and delivery options.

  • DeutschlandDEEN
  • United KingdomEN