Sennheiser HD 660S2

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Headphones

Wired
Circumaural
Open design
Dynamic
Frequency range: 8 - 41,500 Hz
Impedance: 300 Ohm
Sound pressure level: 104 dB (1V)
Driver size: 38 mm
Distortion factor: <0.04% (1 kHz, 100 dB)
Velour ear pads
Two-sided cable routing
Weight: 260 g
Colour: Black
Incl. 1.8 m cable (6.3 mm stereo jack), 1.8 m cable (4.4 mm balanced), 6.3 mm to 3.5 mm stereo adapter and carrying pouch
Made in Ireland

30-Day Money-Back Guarantee

3-Year Thomann Warranty

Available since February 2023

Item number 557336

Sales Unit 1 piece(s)

Design Over-Ear

System Open

Impedance 300 Ohms

Frequency range 8 Hz – 41500 Hz

Adapter Yes

Replacable Cable Yes

Marrone/Argento Black

Max. SPL 104 dB

Sensitivity 104 dB

Type Of Connector Jack(stereo)

Adaptor 1

Weight 260 g

Replaceable Cable 1

Colour Black

B-Stock from £385 available

£419

Free shipping incl. VAT

Sales Rank

in HiFi Headphones

Bundles & offers

Sennheiser HD 660S2 B-Stock
May have slight traces of use

£385

Powerful bass in a lightweight design

The Sennheiser HD 660S2 over-ear headphones, which feature 38mm dynamic drivers and an open-back design for minimal resonance, are the go-to choice for all audiophiles who are looking for state-of-the-art high-fidelity headphones with a warm, natural sound signature. The headphones come in an elegant black design and excel with an extended sub-bass response, which allows a wider low-frequency range to be covered compared to Sennheiser's benchmark HD 660S model and the listening experience to be further enhanced throughout the sub-bass and down to an ultra-low 8Hz.

Sennheiser HD 660S2 headphones with open design

Distortion-free hi-fi sound

The HD 660S2 headphones, which are manufactured in Ireland, feature Sennheiser's unique vented magnet system that allows a maximum sound pressure level (SPL) of 104dB to be reached and unwanted signal distortion to be effectively minimised during audio reproduction – resulting in a near-zero total harmonic distortion (THD) of less than 0.04%. What is more, the HD 660S2 model is specially designed to provide superior comfort, and ensures countless hours of listening pleasure thanks to its ultra-soft velour earpads and a low weight of just 260g.

Extended treble for audiophiles

Alongside an engaging bass definition, the Sennheiser HD 660S2 headphones also boast an extremely bright treble response that allows audio enthusiasts to enjoy crystal-clear highs reaching up to an impressive 41.5kHz. The overall impedance of 300 ohms is characteristic of hi-fi headphones and requires a correspondingly powerful headphone preamp to be connected so as to harness the HD 660S2's full potential and produce a clearer sound with a higher resolution than many other headphones that feature a significantly lower impedance. Thanks to their perfectly balanced combination of high-end functions and an open design, the Sennheiser HD 660S2 headphones are sure to win over music lovers and audiophiles alike. They are just the next logical step for all fans of Sennheiser's HD 660S, HD 580, HD 600, or HD 650 models who want to take their listening experience to a completely new level.

About Sennheiser

In June 1945, Prof. Fritz Sennheiser founded the Wennebostel Laboratory, which initially produced measuring equipment. Commissioned by Siemens in 1945, the young company developed the MD-1 microphone, which was launched in 1946. After the development of further microphones, the company was renamed Sennheiser Electronic in 1958. Two years later, Sennheiser introduced the MD 421 dynamic microphone, which is still in production today and still held in high esteem by many sound engineers. Further groundbreaking developments, such as the HD 414 headphones and the MD 441 microphone classic, hugely enhanced the company's international reputation, eventually making Sennheiser one of the leading manufacturers of microphone and headphone systems in the world.

Versatile connection options

The wired Sennheiser HD 660S2 headphones feature dual-sided cable routing, which allows the cable's weight to be evenly distributed between the two earcups and the cord to be comfortably worn centrally in front of the body. The included detachable dual-sided cable with a length of 180cm and a 6.35mm unbalanced stereo jack plug for connecting the headphones to a preamp offers users sufficient freedom of movement for walking or lounging around in their audio room and enjoying unspoiled hi-fi sound without the cord being unintentionally pulled. The scope of delivery of the HD 660S2 also includes an additional 180cm cable with a 4.4mm balanced stereo jack plug for connecting the headphones to a high-end headphone amp, a 6.35mm to 3.5mm stereo jack adapter for versatile use with mobile preamps, and a carrying pouch that helps protect the headphones from dust.

8 Customer ratings

5 7 Customers 4 0 Customers 3 1 Customer 2 0 Customers 1 0 Customers

4.8 / 5

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Fritz4394 07.03.2023

Vorbemerkung: Ich kenne keines der Vorgängermodelle und war bisher eher im AKG-Lager unterwegs. Ich mag neutrale Kopfhörer mit guter räumlicher Darstellung und hoher Auflösung.
Bisher hatte ich den AKG K702, den AKG K500 und (zum Vergleich geliehen) den Sennheiser HD800S, der zugegebenermaßen in einer anderen Liga spielt.
Ich wollte einen Kopfhörer mit etwas mehr Wiedergabe im Bassbereich und habe mir deshalb den Sennheiser HD660S2 bestellt. Die Basswiedergabe des HD660S2 ist tatsächlich sehr gut und ausgewogen. Allerdings finde ich den Rest des Klangbildes etwas zu ungenau. Wenn ich mich in das Klangbild hineinversetze, bin ich es gewohnt, jedes Instrument klar zu orten und sauber abgebildet zu bekommen. Beim HD660S2 habe ich aber das Gefühl, ich würde durch eine leicht unscharfe Brille „schauen“. Und wenn mehrere Instrumente nebeneinander spielen, verschwimmt der Klang etwas. Im Vergleich zu den AKGs und dem Sennheiser HD800S fehlt außerdem die weite Räumlichkeit. Beim HD660S2 drängt sich der Klang näher um meinen Kopf. Ich mag das nicht. Das ist zwar Kritik auf hohem Niveau, aber trotzdem werde ich den HD660S2 nicht behalten.

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The king is dead - long live the king!

koehntopp 27.02.2023

Kopfhörer absolut zu beurteilen ist ja immer etwas schwierig - ich kann daher nur ein Urteil relativ zum HD 660S abgeben.
Verarbeitung und Tragekomfort sind identisch, was wenig überrascht.
Zum Klang: Merklich besserer Bass, insgesamt klingt die neue Version dadurch wärmer und harmonischer. Kein dramatischer Unterschied zum Vorgänger, aber durchaus ein angenehmes und willkommenes Update!

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Guter Studiokopfhörer

Buttschy 24.01.2024

Ein guter Studiokopfhörer der fürs Abmischen auch im Low End Frequenzbereich eine gute Darstellung abbildet. Die Mitten und Höhen sind gut definiert und der Kopfhörer ist in seinem Preis Leistung Verhältnis eine gute Investition. Die Analyse von Hofa und das ausgiebige Testen meinerseits haben mich vom Kauf überzeugt.

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Gut, aber für den Preis nicht genug

ApAp 20.04.2024

Habe ihn mit meinem bisheriger Kopfhörer Beyerdynamnic DT 1990 Pro verglichen. Sound ist ganz gut, aber die übertriebene Bewerbung des Bassboosts erweckt andere Erwartungen. In allen anderen Bereichen kommt er nicht an den 1990 Pro heran.
Verarbeitung ist eher im Bereich eines 150 Euro Kopfhörers.
Kurz: In dem Preissegment ist der 1990 Pro die viel bessere Alternative.

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Sennheiser HD 660S2

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