

🎶 Elevate your audio game — hear what others miss, feel what others don’t.
The Sennheiser HD 660S2 wired headphones deliver studio-quality sound with a 300-ohm impedance aluminum voice coil and airflow-optimized 42mm transducers. Designed for audiophiles and professionals, they offer deep, precise sub-bass, minimal distortion, and exceptional comfort with an open-back design. Made in Ireland with German engineering, these headphones come with detachable cables and support a wide frequency range (8 Hz - 41,500 Hz), perfect for immersive, long listening sessions.
| ASIN | B0BT7XXYTB |
| Age range (description) | Adult |
| Cable feature | Detachable |
| Compatible devices | Devices with 6.35 mm audio input or adapter compatibility |
| Connectivity technology | Wired |
| Control method | Touch |
| Control type | Touch Control |
| Country of origin | Ireland |
| Frequency response | 41500 Hz |
| Headphone jack | 6.35 mm Jack |
| Included components | 4.4 mm cable (1.8 m), 6.3 mm cable (1.8 m), 6.3mm to 3.5mm adapter, HD 660S2 headphones, Protective Case, Safety Guide, User Manual |
| Item model number | 700240 |
| Item weight | 260 Grams |
| Manufacturer | Sennheiser |
| Material | Aluminum |
| Model name | HD 660S2 |
| Noise control | Sound Isolation |
| Number of Items | 1 |
| Product Dimensions | 24.2 x 18.2 x 10 cm; 260 g |
| Recommended uses for product | Recording |
| Sensitivity | 104 dB |
| Specific uses for product | Professional |
| Style | open-back |
| Unit count | 1 Count |
| Water resistance level | Not Water Resistant |
| Wireless communication technologies | Kopfhörer mit Kabel |
C**U
J’en ai eu des casques, de toutes marques, de toutes technologies, mais je penses avoir enfin trouvé le Graal ! Alors attention, mon avis est bien évidemment subjectif et dépend entièrement de ma configuration matériel ! Utilisé principalement sur mon ampli (Yamaha A-S1100) pour l’écoute de vinyles (Pro-ject PRO avec cellule 2M Black et preamp à lampes). J’avais craqué jusqu’à présent sur un Grado SR325X qui est vraiment excellent mais pas des plus confortables, le HD660S2 me faisait de l’œil depuis longtemps.. malgré certains commentaires qui laissent entendre un manque de basses, c’était justement l’un de mes objectifs, car depuis l’acquisition du preamp à lampes ces dernières étaient devenues un peu trop “brouillonnes” et je cherchais à les maîtriser au delà de ce que le Grado permet. Et la.. le mariage parfait !! Le Sennheiser m’apporte un équilibre vraiment parfait (encore une fois d’après mon matériel). J’obtiens des basses suffisent puissantes et d’une précisions folle ! Les médium sont également légèrement relevés ce qui lève un certain “voile” présent sur les voix et les aiguës sont cristallins ! Peut-être un peu trop présent au déballage mais au bout de quelques heures de lecture, ceux-ci s’apaisent pour devenir juste excellent ! Je suis vraiment ravi de mon achat !
G**O
These headphones are worth every cent. Audio quality coming from them is incredible provided that you couple them with a quality audio source. Keep in mind that these headphones are quite demanding, so to get sufficient volume you need adequate source. The sound is somewhere between neutral and warm, at least to my ears. I use them with FIIO M23. At medium gain, the player drives HD 660S2 perfectly and the sound is as close to analog as possible. With HiBy R6 III they sounded great as well. The only downside (but that is a general downside of open headphones, not of this in particular) is that in a noisy environment you hear noise as well. However, if your environment is quiet, these headphones will give you unmeasurable pleasure. Even though they are not small, they are quite light and very comfortable to use all day along. Build quality is very good and solid and again underlines the premium brand. The headphones come both with 3.5mm and 4mm cables, which is very useful depending on what player/DAC/source you use.
L**E
So glad I bought these, they were a treat and wondered if I should spend the money. Worth the price and value for money. The fit is very comfortable, does have not excessive clamp and light weight. I forget I have them on sometimes and even that they have a cable. Sound wise they sound pretty neutral to me, but I’m not an expert. You can hear more detail in the mix and instruments. Sound stage is not impressive but not bad either. I have a pair of Sony WH-1000XM4s and although they are fairly easy to listen to they are far to bassy the point of being harsh and sound muddy, if you have been listening to these. Better frequency-wise, and more comfortable than a pair of oldish Grado SR225s. Yes they are open, yes there are other more practical headphones with noise cancelling and wireless features, and apps etc. But these are old school, no fuss and make you appreciate the music again.. easy to understand why they are fan favourites. Always surprised when I put them on. Only gripe is that the cable catches my nose and mouth when taking them off in a hurry. Theyre a bit underpowered on my iPhone, so you’ll need a dac or amp of some sorts. Works perfectly well on my MacBook Pro without extra amplification. Decent build quality, but sadly no decent case for your money.
G**U
Écoute cd classique sur marantz . Pureté atteinte avec le Gloriae de Vivaldi.
S**T
Ich habe einige KH probiert! unter anderem: Fiiio FT1 Pro -> Konstruktion und Stabilität fragwürdig, im Tiefbass hört man tw das flappen der Membran. Sonst Planartypisch zurückhaltendere Mitten, hohe Auflösung, aber auf Grund der Qualitätsanmutung und dem Tiefbass-Problem nicht mein Fall Ananda NANO - Planartypisch zurückhaltendere Mitten, hohe Auflösung, guter Bass, etwas zischend in den Höhen. KO Kriterium - PASSFORM (keine Swivel Funktion der Muscheln) Arya Stealth - Planartypisch sehr zurückhaltendere Mitten, hohe Auflösung, guter Bass, etwas zischend in den Höhen. Um Dialoge besser zu hören ist eine Lautstärke erforderlich, die die Höhen extrem ermüdend macht. Die Bühne empfand ich als unnatürlich gross, das Imaging war dadurch für micht etwas erschwert. Vor allem beim Spielen. Daher auch der Retour. HD660S2 - gute Auflösung, gutes Imaging, gute Mitten, eher kleinere Bühne, schnell und detailliert in der Abbildung (nix gegen die Planaren, die ich vorher getestet habe. In der Beziehung waren die überlegen), einzelne Instrumente oder Audiocues lassen sich gut zuordnen. Extrem bequem, sehr leicht, gut verarbeitet, auch wenn er "nur Plastik" ist. Leicht anzutreiben! Fiio K11 reicht. Man hat nicht das Gefühl auf Grund eines zu schwachen AMP etwas zu verpassen. Alles in Allem ein guter Allrounder, extrem bequem und daher gern getragen. Was nutzt der beste Klang, wenn man sich dabei nicht wohlfühlen kann? Und hier punktet Sennheiser mit allen 3 KH, welche ich von Ihnen besitze (660S2, 620S und Momentum 4) Alle 3 sehr bequem, und werden gern getragen.
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