Sennheiser HD 660S2 (Black)

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£429
Buy online/in-store/Telesales
Sennheiser HD 660S2 (Black) is rated 4.9 out of 5 by 10.
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Sennheiser HD 660S2 (Black)

Over Ear Open Back Headphones
£429
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All products that are available to purchase on the Richer Sounds website can be delivered free to blind, partially sighted or those with a disability. Find out more

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Now with enhanced bass depth, the fan-favourite Sennheiser HD 660S2 headphones have a more impressive all-round sound than ever.

Voiced for optimised bass response
Renowned for their neutrality and musical delivery, Sennheiser’s HD 660 headphones have a cult following. Now in S2 form, the updated model features lighter voice coils and improved airflow, helping to enhance the bass response. Dropping from 110Hz to 70Hz, the bottom end now has noticeably more impact, without spoiling the headphone’s legendary sonic precision.

Musical delivery
As before, the HD 660S2 headphones are designed for the critical listener. Hand selected speakers are carefully paired, giving these headphones the most consistent sound between channels. Precision, stainless steel fabric diaphragms deliver life-like realism for a true-to-life sound.

Open back for open sound
Featuring an open back design, the HD 660S2 headphones are able to reproduce a spacious, ‘out of head’ sound. Although these headphones will leak sound to the outside world, the sound inside is so lifelike, that it’s like being at your own private performance.

Balanced input option
Supplied with balanced and non-balanced cables, the HD 660S2 maximises the potential of dedicated headphone amps and music players fitted with balanced outputs. Balanced cables minimise interference, enhancing the music’s purity. The standard, non-balanced cable is fitted with a 6.35mm plug, with a push-on 3.5mm adaptor also supplied.

Designed for comfort
When something sounds this good, you’re going to want to listen for a while. The HD 660S2 remains comfortable for the longest listening sessions. Elliptical cups fit naturally around your ears, while the breathable earpads are soft to the touch, without feeling tacky against your skin.

Enjoy ‘best in class’ sound, pure and simple, with the Sennheiser HD 660S2.
Overview
Cable Length
1.8m
Type
Over Ear, Open Back, On Ear
Plug size
4.4mm Balanced, 6.35mm Unbalanced, 3.5mm adaptor
General
Manufacturer's Warranty
2 years
Audio
Sensitivity
104dB
Features
Open back
Yes
Over Ear
Yes
Weight
Weight (KG)
260g
Rated 5 out of 5 by from Superb Headphones Great piece of kit with superb bass and good build quality
Date published: 2024-02-17
Rated 5 out of 5 by from They are better Nearly every review I have read and YouTube video I have watched has told me that the 600’s and 650’s are superior to the newer 660s2’s despite their age, so I believed them and bought some 650’s. Yes they are exceptional cans and deserve their legendary status, but curiosity got the better of me and decided to try the 660s2’s. Granted I’m no expert, but I think the 660s2’s are better headphones in every single department. Ever so slightly more comfortable, a smidge more bass, a tad more detail, a bit wider soundstage and a more modern, stylish paint job. I think they are a step forward, not by much, but how could they be? Sennheiser shot themselves in the foot all those years ago by setting the bar so high.
Date published: 2024-01-04
Rated 5 out of 5 by from The best, sensibly priced headphones you can buy. Have wanted these to replace my old broken HD180’S, they are superb, only gripe is the lead is a little short for listening on system, otherwise they perform beautifully.
Date published: 2023-12-21
Rated 5 out of 5 by from Fast delivery, great headphones Richer Sounds reliable, as always. I liked the price difference guarantee, in case there are further discounts around Black Friday/Cyber Monday. Delivery (DPD) already on 2nd working day versus 3-5 days stated. As for the product itself, the bass improvement compared to previous 600 series is noticeable and adequate. But, the dip around 5khz could be a problem for older listeners, especially with certain music genres. Work fine with chamber music out of the box, less so with electronica when EQing may be needed. I was aware of it before buying so not a problem for me.
Date published: 2023-11-14
Rated 5 out of 5 by from Exceptional sound Everything crisp, clear and perfect. I'm hearing things I've never picked up before.
Date published: 2023-10-21
Rated 5 out of 5 by from Sounds amazing The latest incarnation of sennheisers legendary 660s take it up a few notches in sound quality especially in the bass department..absolutely love these cans and would definitely recommend
Date published: 2023-04-29
Rated 5 out of 5 by from Fantastic headphones I have the original Senheiser HD600 and love the feel of these and sound on my head so wanted an upgrade as wanted a bit more bass and these headphones are the most comfortable and best sounding I have experienced and trust me I’ve been trying to get to my Utopia and these are the one we for me
Date published: 2023-03-10
Rated 5 out of 5 by from Impressed Really lots more detail in the mid range than other studio headphones I’ve tried, high end is precise and the bass is about right. Happy to use these for mixing.
Date published: 2023-03-09
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