Sennheiser HD660S

Name: HD660S
Brand: Sennheiser
SKU: 4044155249569
Rating: 4.5 (8 reviews)

(8 customer reviews)

This product is no longer available for sale!

Awards

EISA Awards: Award-Winning Product

Each year, dozens of European journalists gather to select the best electronic products of the year. Awarded by a diverse and impartial jury, the EISA (Expert Imaging and Sound Association) awards recognize exceptional products for their performance, design, or ergonomics.

A New Audiophile Versatility

The new HD 660 S allows you to enjoy sophisticated audiophile sound in a wider range of listening conditions. The successor to the legendary HD 650 excels with the improved performance of its new transducer design. Thanks to its low impedance, it delivers class-leading sound even when connected to high-resolution mobile players, providing much greater versatility. The HD 660 S is a high-quality feat of engineering with an elegant design that satisfies the discerning listener with its sonic precision and outstanding wearing comfort.

What the press says

After nearly 14 years of excellent and loyal service, the HD 650 will finally be replaced in Sennheiser's catalog. Called the HD 660 S, the new model features new speakers designed to deliver a more neutral, more natural sound experience.

Automatically translated — Show original (French)

Après presque 14 ans de bons et loyaux services, le HD 650 va enfin être remplacé dans le catalogue de Sennheiser. Baptisé HD 660 S, le nouveau modèle bénéficie de nouveaux haut-parleurs, censés délivrer une expérience sonore plus neutre, plus naturelle.

Documentation

User manual
French

Technical specifications

Ear coupling Circumaural
Transducer type (headphones) Dynamic, open

Measurements

Impedance 150 Ω
Frequency response 10 – 41,000 Hz (-10 dB)
Sound pressure level (SPL) 104 dB at 1 V, 1 kHz
THD + N, total harmonic distortion and noise < 0.04% (1 kHz, 100 dB)

General

Weight without cable Approx. 260 g (without cable)

Package contents

HD 660 S headphones
Detachable balanced cable x 1
Detachable unbalanced cable x 1
6.35 mm to 3.5 mm mini-jack adapter

User reviews

Philippe

Very good headphones, beautiful construction, fits well on the head, super powerful and detailed sound rendering.

Comment from December 23, 2022 — Experience from November 24, 2022

Automatically translated — Show original (French)

Très bon casque, belle fabrication, tient bien sur la tête, super rendu sonore puissant et détaillé.

Patrick

Sits alongside two excellent headphones, the famous HD650 and HD600. Compared to these two, the "newcomer" brings nothing and degrades everything. Gone are the voluptuous listening experiences characteristic of this series; this headphone constantly assaults the ears with its poor balance. The increased resolution promised by the manufacturer is inaudible; on the contrary, the HD650 and HD600 seem even more resolving in retrospect than previously thought.

Comment from July 20, 2021 — Experience from October 08, 2020

Automatically translated — Show original (French)

Se place à côté de deux très bons casques, les célèbres HD650 et HD600. Par rapport à ces deux derniers le "petit nouveau" n'apporte rien et dégrade tout. C'en est fini des écoutes voluptueuses propres à cette série, ce casque agresse en permanence tant il est mal équilibré. Le supplément de résolution promis par le constructeur est inaudible; bien au contraire les HD650 et HD600 apparaissent a posteriori encore plus résolvants qu'on ne le croyait.

Francois

Good product but depends on the amp it is connected to.
Very relaxing, very smooth listening experience but can sometimes lack detail.
I prefer my Focal Elegia but it's more expensive...

Comment from June 20, 2020 — Experience from January 16, 2018

Automatically translated — Show original (French)

Bon produit mais dépend de l'ampli sur lequel il est branché.
Ecoute très reposante, très douce mais peut parfois manquer de détail.
Je lui préfère mon Focal Elegia mais c'est plus cher…

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