Sennheiser HD660S (Black) is rated 4.9 out of 5 by 25.
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Sennheiser HD660S (Black)

Over Ear Open Back Headphones
£429
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Disabled assistance

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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For delivery of in-store only deals, please contact your local store for more details.
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”Comfort and great sound quality make these excellent at-home headphones.” ’Trusted Reviews’.

A passion for music

Designed for the demanding listener, the Sennheiser HD660S offers an exceptionally balanced performance. 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.

Sound that ‘breathes’
Featuring an open back design, the HD660S headphones are able to produce a spacious, ‘out of head’ sound. Although these headphones will leak sound to the outside world, the sound inside is so life-like, it’s like being at your own private performance.

Balanced input option
Supplied with balanced and non-balanced cables, the HD660S maximises the potential of dedicated headphone amps and music players fitted with balanced outputs. Balanced cables minimise interference, enhancing the music’s purity.

Designed for comfort
When something sounds this good, you’re going to want to listen for a while. The HD660S remains comfortable for the longest listening sessions. Elliptical cups fit naturally around your ears, while the breathable earpads are soft to the touch, without being sticky.

Hear every element of music, with the Sennheiser HD660S.
Overview
Cable Length
3m
Type
Over Ear, Open Back
Plug size
4.4mm Balanced, 6.35mm Unbalanced, 3.5mm adaptor
General
Manufacturer's Warranty
24.0000
Audio
Sensitivity
104
Features
Open back
Yes
Over Ear
Yes
Weight
Weight (KG)
260g without cable
Rated 5 out of 5 by from Great service Ordered these headphones by phone and collected 2 days later. The headphones are amazing. The service from Milton Keynes was exceptional, very happy with my purchase worth every penny. Great sound and great comfort. Thanks again mk.
Date published: 2022-10-31
Rated 5 out of 5 by from Brilliant headphones with fantastic sound quality Shocked at just how good these are. Sound is outstanding. Just wish it was an easy task getting a shorter cable. Says 3 meters feels like 30 as it gets everywhere. Still no regrets and am a happy and satisfied customer. Now leave me alone so I can get back to listening to my music in audio heaven.
Date published: 2022-09-05
Rated 5 out of 5 by from Absolutely incredible. My previous headphones were quite bass-focused - so these have taken some getting used to. Firstly, as all these reviews state, I would agree that a headphone amp is essential to get the best out of these headphones (I just use my Scarlett 2i2 interface). Secondly, the bass is not overpowering, but extremely well balanced and grounded. The clarity with these headphones is like nothing I've ever used before - the sound is unbelievably well balanced. You will mix better, and the listening experience is absolutely outstanding.
Date published: 2022-07-24
Rated 5 out of 5 by from Very, very good. A very easy listening experience, comfortable enough for me to wear throughout the day at work and home to listen to music.
Date published: 2022-06-20
Rated 5 out of 5 by from Had to have another set of HD660'S Originally I bought a set of Sennheiser HD660'S as a treat for myself after owning the HD600's for many years. After my wife 'tried' them I decided to buy another pair to save having to share them. They really are superb and represent great value at the price Ricer Sounds is offering. Highly, highly recommended.
Date published: 2022-06-16
Rated 5 out of 5 by from A Worthy Successor! After previously owning and greatly enjoying the superb Sennheiser HD600's and HD650's I was slightly worried about adding the 'newish' HD660's to my Sennheiser collection. However I need not have had any fears, they are simply a superb set of headphones. As comfortable as any I have used (and there have been plenty) they are a joy to listen to. I have quite varied musical tastes and these shine in all genres. The soundstage and vocals are impeccable but the placement of individual instruments is astounding. The best I have ever heard. As usual the service from Richer Sounds was First Class. Both are highly recommended.
Date published: 2022-06-04
Rated 5 out of 5 by from New chapter of the great old headphones The HD600 had been great for decades, HD660S is the same form factor, but many versions newer. It is a lot easier to drive than the original HD600 but yet still sounds amazing.
Date published: 2022-05-26
Rated 5 out of 5 by from Comfortable wearing, great sound. I bought the Sennheiser HD660S head phones and boy am I glad that I did. They are "open back" cloth ear pieces with a wonderful sound. The other pair of head phones that I possess are "closed back" with leather ear pieces. I eventually stopped wearing them because they became too sweaty and uncomfortable and after approximately an hour I got bored with the music because the sound coming through was in my experience not so good. Although this is a subjective experience. After switching to the Sennheiser HD660S head phones my experience in the change of detail, liveliness of the music and comfort was like night and day. I can wear these head phones for hours on end listening to any type of music and even watching programmes such as the news. I just do not become bored and uncomfortable. They are well worth the amount of money that I paid for them. I read a write up of some one complaining that there is not enough bass coming through the head phones. This is a subjective call but my subjective call tells me that my damaged hearing from my youth still easily picked up enough bass in the music that I listened to. I suppose "each to his own". And as usual the Customer Service from Richer Sounds was the best. Advice received, bought today and delivered tomorrow. Thanks once again to the crew at Richer Sounds Exeter.
Date published: 2022-03-11
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