

🎶 Feel every beat, live every note — the audiophile’s ultimate bass companion!
The Sennheiser HD 660S2 wired headphones deliver high-fidelity sound with an ultra-light 300-ohm aluminum voice coil and airflow-optimized 42mm transducers. Engineered for deep, powerful bass and minimal distortion, these open-back headphones offer exceptional comfort for extended listening. Crafted with German precision and made in Ireland, they feature a wide frequency response (8 Hz - 41,500 Hz) and detachable cables for versatile use, making them a top choice for discerning music professionals and audiophiles.














| ASIN | B0BRT1ZN7Q |
| Age range (description) | Adult |
| Best Sellers Rank | 45,392 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 220 in Studio Headphones |
| Cable feature | Detachable |
| Compatible devices | Smartphone |
| Control method | Touch |
| Control type | Media Control |
| Guaranteed software updates until | unknown |
| Included components | HD 660S2 headphones, 6.3 mm cable (1.8 m), 4.4 mm cable (1.8 m), 6.3 mm to 3.5 mm adapter, Carry pouch |
| Item model number | 700240 |
| Item weight | 0.3 Kilograms |
| Manufacturer | Sonova |
| Material | Aluminium |
| Number of items | 1 |
| Package type | Protective delivery packaging with a portable carry pouch |
| Product Dimensions | 7.62 x 17.78 x 17.78 cm; 300 g |
| Recommended uses for product | music |
| Specific uses for product | Music |
| Style | Headphones |
| Water resistance level | Not Water Resistant |
N**.
truely cheap truly crap
the original hd650 is 10 times better , bass cannot hold , was in a cheap box dont buy them
P**H
Not worth the hype
Well…a few hours in and let’s say I am not overwhelmed. Very little difference between these and XM5s and maybe not so good. Returning.
V**A
Son exceptionnel
L**.
There are plenty of opinions on this headphone all over the internet. None are bad, but some are pretty negative. Mainly because from what I am seeing, the reviewers are reviewing the price, not the product. They are saying, you get almost as good performance from model/Brand A or B for less money, focus on the ALMOST. While yes it is true, at $600 is expensive, but make no mistake about it is does out perform other headsets in many areas. This headphone is on sale for $100 more than the HD650, which is $100 more than the HD600, so this falls right in line with Sennheiser pricing structure now, and rightfully so. I don't think it is double or triple the other two 600 series headphones, but it is IMHO is a much better headphone, and worth $100 more. Literally, if you are looking at the 600 or 650's and aren't sure which sound signature is for you, get this one if you have the budget, or wait a little while and save for it... It is worth it. It has the best characteristics of both, which you can see some reviewers stating this. I believe it was Josh Valour who said it, but I do disagree with something he said, it was something along the lines that is in between both models, and a jack of all traits, but master of none. Well, it is a more well rounded performing headphone than both of those and I believe it Masters an overall warm, smooth, well defined, spacious sound with impeccable imaging. For me and my taste it is the PERFECTING SOUNDING HEADPHONE, and exactly what I was looking for. No headphone is the everything to everyone. So be honest with yourself on what you like, based on your ears, and not popular opinions, even if it is from experts, which they are, I am not disputing that at all. I am pretty new to the whole audiophile thing. One thing. But, I have learned that you really need to spend some time with the equipment to let it sink in and let your hearing mature to the product at hand. I realized this, when I purchased the Harmnicdyne athena, reviewers raved about them. It sounded like the overall characteristic I like so I decided to give it a try. I received them, put them on and listened, I was horrified. What I hadn't realized was that my hearing was skewed by listening to the hd560s so much (I really enjoy that headphone). Doing A/b comparisons only made it worse for me. So, I decided to force myself to listen to them. So, I did, I listened exclusively for 2 days, and when I would take breaks and come back and listen to the Athena I was truly amazed at how much I LOVED THEM!!! It is really hard to compare headphones; they all have their own characteristics, just as we all have our own opinions and tastes. So, I believe headphone reviewers have a very difficult job. As some of us expect them to tell us what is "BETTER" headphone A or Headphone B, it just isn't that simple. Headphone A might be better for you, but headphone B is better for me. That is the beauty of this hobby. There is no right, or wrong, better or worse. Just learn to appreciate what your ears tell you and take all other opinions with a huge "GRAIN" of salt. Josh Valour, DMS, The Headphone Show, The Source Audio Video Group, and some others, does a great job of describing the products and giving a sense of how the product is. I watch way too many reviews. LOL. I Hope this helps someone else on the audiophile journey. Here is my current stuff incase anyone care to see. I literally started with headphones and amps a little less than a month ago. The gaming headsets, I have had for about 6months to a year, that is what started it all. I have the HD560s, HD 660s2, Hifiman he400se, Harmonicdyne athena, I am using the IFI Zen air line of products, the Air dac and Air can, both awesome to start with, and you probably won't need to upgrade for some time, key word is need, want is different. lol. For gaming I use the PC38x Sennheiser/epos, the epos H6Pro, Steel series Nova Pro wired with DAC. Sennheiser Game zero, and Audeze PenroseX, Gaming Dacs are the sound Blaster GC7, and G6 love them both but prefer the GC7 in case anyone is looking at the two. Good luck, and good listening!
S**O
Qualität und Musikalität, alles in einer Flasche
A**R
Ok.The Skinny of it... A little rough in the edges but..still acceptable by listening standard. Compared to AT WP 900 this model is on the softer side and rougher on the highs. Compared to Grado SR60 the sound is compressed with this headphone. Compared to Sony MZR 2 the 1k version that is opened and not compress but you feel you want to play it louder. But no complains if you want to pamper yourself. Finally compared to the top of the line Focal 6k model. This one is bar none. Dynamics highs mid and tonal separation this is serious stuff. But Seriously all running on the same LG V60 as source with Tidal and with USB audio pro meaning it is forced to output 16bit. Not 48.... Final word for the price...we have to be fair for the quality of sound on the price. If you were to compare it with the AT WP900 same price but now with the promo the Senheiser is reasonable value for money. Atleast if you are thinking about giving this to your teenage kids.Fine with it. No complaints. Cause if you look at it in this way every 6months they will end up buying new cans. Cause the wires just snap but with the Senheiser you can easily replace them. All the parts sponge head sponge and the cables you can swap them when wear and tear approaches.Besides you only have 1pair of ears so either you take good care of them for the better part of your life or you end up loosing to be deaf as time and age passes by. Your choice. For me I will this model. It is fine for daily use.Reasonable.
J**S
Comprei o Sennheiser HD 660S2 buscando um salto real em qualidade sonora — e ele entrega exatamente isso. É um fone que muda a forma como você escuta música: você não apenas ouve, você começa a perceber camadas, texturas e detalhes que passam despercebidos em fones comuns. A assinatura sonora é natural, quente na medida certa e extremamente detalhada. Graves são presentes e bem controlados (inclusive subgrave, algo raro em fones abertos), médios são muito bons para vozes e instrumentos, e os agudos são suaves, sem fadiga. É o tipo de fone que te faz ouvir um álbum inteiro com atenção — Daft Punk, trilhas do Hans Zimmer e música acústica ficam simplesmente incríveis. O palco sonoro é amplo e bem definido, criando uma sensação quase “tridimensional”, mesmo sendo estéreo. Para quem gosta de ouvir música com calma, atenção e qualidade, é um fone excepcional. Pontos negativos (ou melhor, pontos de atenção): O acabamento é majoritariamente em plástico. Ele é bem construído, sólido e claramente premium, mas considerando o nível e o preço do produto, poderia usar materiais mais nobres como metal e/ou madeira em algumas partes. No início, achei o fone um pouco pesado, principalmente em sessões longas. Felizmente, isso melhora com o uso — o conforto acaba se tornando muito bom depois que você se acostuma. Considerações finais: Não é um fone “plug and play” para qualquer situação: ele se beneficia bastante de uma boa fonte (DAC/amp), e não é feito para uso portátil. Mas no ambiente certo, ele entrega uma experiência sonora de alto nível, que justifica plenamente o investimento. Logicamente o ideal é você ouvir músicas com mais qualidade (nada de radio online ou streaming que te entrega um audio mais compactado). Ele vai tocar bem, mas com a qualidade certa, a experiência sonora é superior! Se você gosta de música de verdade e quer subir de patamar na forma de ouvir, o HD 660S2 é uma escolha excelente.
Trustpilot
3 weeks ago
2 weeks ago