---
product_id: 507909782
title: "HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance, Over-Ear Headphones for PC, Music, Gaming, Podcasts, Premium Black"
brand: "sennheiser"
price: "€ 760.85"
currency: EUR
in_stock: true
reviews_count: 13
category: "Sennheiser"
url: https://www.desertcart.hr/products/507909782-hd-660s2-audiophile-open-back-over-ear-headphones-with-deep
store_origin: HR
region: Croatia
---

# 42mm dynamic drivers for rich sound Frequency range 8Hz–41.5kHz for deep bass & crisp highs Detachable cables with 6.3mm & 4.4mm balanced options HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance, Over-Ear Headphones for PC, Music, Gaming, Podcasts, Premium Black

**Brand:** sennheiser
**Price:** € 760.85
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your audio game — hear what others miss!

## Quick Answers

- **What is this?** HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance, Over-Ear Headphones for PC, Music, Gaming, Podcasts, Premium Black by sennheiser
- **How much does it cost?** € 760.85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/507909782-hd-660s2-audiophile-open-back-over-ear-headphones-with-deep)

## Best For

- sennheiser enthusiasts

## Why This Product

- Trusted sennheiser brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Deep Bass Extension:** Feel every low frequency from 27.5 Hz piano lows to punchy bass drums with precision.
- • **Exceptional Comfort:** Breathable open-back design with plush ear cushions for fatigue-free long sessions.
- • **Premium Build Quality:** Crafted in Germany & Ireland with durable aluminum housing for lasting elegance.
- • **Versatile Connectivity:** Includes detachable cables and adapters for seamless use with PC, gaming rigs, and smartphones.
- • **Audiophile-Grade Soundstage:** Experience a natural, spacious sound that immerses you in every note.

## Overview

The Sennheiser HD 660S2 are premium open-back over-ear headphones featuring 42mm dynamic drivers and a wide 8Hz–41.5kHz frequency range. Designed for audiophiles and professionals, they deliver a natural, spacious soundstage with deep bass and refined highs. Crafted with durable aluminum and equipped with detachable 6.3mm and 4.4mm balanced cables, these headphones offer exceptional comfort for extended listening, making them ideal for music, gaming, and podcasting.

## Description

Product description Dive deeper into legendary sound. Enjoy your music on a completely new level. An intimate, relaxed sound signature combines with outstanding precision and exceptional comfort — and now, extended sub bass — for a deeply moving experience. Ever felt goosebumps from sound so real, as if the source was in the room? An intimate experience you won’t want to live without. The non-fatiguing HD 660S2 gives people who love music an intimate way to connect more deeply with their favorite songs and artists. Breathtaking resolution and precision take you closer than ever to instruments and vocalists. Yet the sound is natural and balanced, never harsh or brash. Double the sub bass heightens your listening experience. By doubling the sound pressure at the lowest frequency, we retained incredible precision and balance throughout the sub-, mid-bass, and beyond. Extension on the low end changes everything, creating more space for the sound. Against a deeper backdrop, the highs feel more brilliant, emotions stronger. Enjoy your music on a completely new level. They feel as great as they sound The velour earpads can only be described as a tactile pleasure. With the right amount of tension for proper acoustic positioning and supple padding, the headband won’t draw attention away from your music, either. As an open-back design, the HD 660S2 gives your ears an extremely comfortable climate. How do you one-up a line of legends? High-end Sennheiser headphones like the HD 600, HD 650, and HD 660S are known for their balanced, natural sound. The HD 660S2 shares this legacy with a revised 300-ohm coil for cleaner impulse response, a compliant surround for lower resonant frequency, and optimized airflow for better sensitivity. Natural, non-fatiguing sound for gamers and streamers. Do you recognize the feeling of listening to harsh sounds that annoy you for long periods of time? The HD 660S2 has been developed for detailed yet fatigue-free treble reproduction to keep you focused all day long. With comfort this good, you’ll be ready to extend your gaming sessions even further. Find your perfect audiophile headphones HD 660S2 HD 599 HD 560S HD 600 HD 650 HD 800 S

Review: It's magic: enter the concert hall - Update on August 9, 2024: The iFi DAC combined with the iFi Zen Can produced clear sound and proper dynamics, but human voice sounded feeble and harmonics were missing (that is, a concert piano sounded like an electronic one). I figured it was the amplifier, not the headphones, so I gave a try to an XDUOO TA-10R, which is a hybrid headphone amp, using a balanced tube and Class A amplification (USB, optical, RCA, and coax inputs, a pseudo-balanced output that still sounds better than the 6.3mm unbalanced one). Once I swapped out the factory tube for a Gold Lion, the sound stage opened up, human voice became full, and the harshness around the high C vanished. Even poor recordings (uncompressed) sound good, providing a lot more presence than I experienced from the iFi combo. The fullest sound that goes deepest uses a Tungsram tube. I must admit that a $40 Koss would probably meet most people's need. Also, as my old friend said about 50 years ago, no headphone can compete with a good room setup (which can be hilariously expensive, but not necessarily. Compiling it from used items, you can get one for around $10k, which is still a lot less than the top-of-the-line headphones that still can't compete with it. Original review from May 24, 2024: Every time I put them on, I feel mesmerized. Have never had this experience with any other headphones; it's like the music comes to life around my head, as if I was present at the performance. Granted, that applies mostly to classical music, and the sound can easily bring tears into my eyes. Still, these babies produce excellent sound for everything I've put on them. I'm not a gamer, so I can't comment on the gaming performance, but there is at least one 5-star review on that subject. Anyway, beyond the subjective, sources and recordings are also essential to consider as well as the connections, so let me submerge into those details. Good headphones are no good for compressed sound, but plenty of headphones are made for such a clientele. The s2 with its refined sound is targeting an audience that cares for the original sound. Please, notice that when people "burn in" new equipment, during much of that (except for diaphragms in speakers), what happens is that the components adjust to each other, especially on the analogue side. The outcome ultimately determines if their combination is feasible or not. My current setup has been serving me well in the last five years or so, so I haven't made any changes. I used an iFi Zen DAC v1 (from the USB port on computer) and an iFi Zen Can v1 (on the RCA input from a relatively high-end LG Blu Ray player from the optical port through a digital-to-analogue converter). Connected the DAC with the amp through their balanced ports with a short decent balanced cable. Both amps were hooked up to the sources with SVS interconnect cables. Didn't use the "Trubass" feature on either one, because for my taste, it upsets the sound balance (the DAC also amps the bass at a higher frequency than the amp). My sources were the usual high-resolution recordings (both pop and classical) and Blu Ray movies I use for testing new components. The most prominent strengths of the s2 is extended bass and an adherence to the original sound signature. While the OEM cables are fine, out of the two supplied, I favor balanced one. I have found a purchase for a previous Sennheiser that didn't work out at the time giving me better resolution. desertcart is still selling it: KK Cable II-SO. (Added on 6/28/24: for movies, the original balanced cable works better; the KK produces less bass in return for better instrument positioning, and dialogues suffer from human voice being elevated around 500Hz, which makes conversations harsh and unpleasant to listen to. The original cable goes deeper, although perhaps a bit muddied in the lowest end, but conversations are clear). The only problem with the extended bass is that the housing loses a little control over it beyond a certain (obviously VERY high) volume, so I can sort of feel the ear cups moving, which breaks the illusion of being present. This is probably the main reason why the pressure around the ears is relatively high (and loosening it might not be the best idea). The s2 might not be the best for someone with a large head (it might feel uncomfortably tight) or unusually large ears that the ear cups cannot cover, and it took me a few days to get used to it, because I am on the high end of average head and ear sizes. The included bag is a plastic dust collector; I am using an anti-static bag instead. Hard cases are available for transportation, but the original box works for that, if only on occasion. As opposed to the planars I've heard (Moondrop Para and Hifiman HE400se, but others report the same problems with lot costlier planars), the s2 retains the familiar sound on the recordings I usually use for testing new equipment, and it extends the listening experience in gentle, but important ways. The bass reverberates in the concert hall, and is not victim to extensive channel separation. Even harmonics play the same or better than on anything else I've heard in this price range or below, although this is a feature that can warrant higher investments. No problem with high-pitched human voice being harsh and sibilants don't suppress other frequencies; the performance is actually toned down a bit in order to retain the sound that recordings must have been meant to sound like. In my understanding "warm sound" is often used for describing the feature, perhaps because no highs and mids dominate at the expense of the bass or each other. Despite the somewhat reserved (but not veiled) presentation, the dynamics don't suffer. I believe, the secret is ingenious engineering that uses physics: the proper driver and built-in sound paths in the earphones. Many other headphones have built-in electronics in the sound path, allegedly, to protect the user's hearing, but to me, it seems more like protecting the drivers from overload. Consequently, the s2 doesn't clip at low bass (emit a clicking sound, while cutting out the sound), while most the sound is there in that region, too. The headroom is like sitting in the concert hall, albeit a bit further in the back that the eight row, but the sound image remains steady at various volume levels. To me, the harmony and the unity of the sound, along with the original sound signature, is worth the price. Added on 04/03/25: The best cable I've found for these is https://www.desertcart.com/gp/product/B0BZMS68RV, although it lasted only for six months. The best amplifier in this price range is a hybrid tube (the tube is only for buffering a Class A headphone amp) is the XDUOO TA-10R. Added on 12/22/25 The best affordable tube headphone amp for these turned out to be a Fosi GR70, available on desertcart, where I also bought it for under $180.
Review: Intimate, Lifelike Sound That’s Worth Every Penny (If You Catch a Sale) - Sennheiser HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance, Over-Ear Headphones for PC, Music, Gaming, Podcasts, Premium Black I’ve actually bought these headphones three separate times now. There seems to be an ongoing price war between desertcart and Best Buy to see who can drop the price the lowest, and I kept chasing the deal. If you can snag these for under $420, they are absolutely worth it. If the price jumps back up toward $600, keep an eye out for the refurbished models that pop up around $350—they are what the product should be priced at. I’m currently running these through a Fosi Audio DS2 (the 2024 version) for both my PC and my portable gear. I use the 4.4mm balanced connection, which provides plenty of power to really let these breathe. If you’re using a standard headphone jack, your results might be a little different, but with a decent little DAC like the Fosi, they shine. The standout feature for me is how intimate and lifelike the vocals sound. Because the DS2 has a very neutral, "clean" profile, it balances out the natural warmth of the 660S2 perfectly. It creates a really relaxing, rich listening experience that doesn’t get tiring after a few hours. I bought these specifically for critical music listening, and they nailed exactly what I was looking for. In terms of the actual sound, the "stage" feels a bit narrow and close to your ears—it’s not a wide, airy stadium sound—but the bass is warm and has a nice punch to it. It feels impactful without being overwhelming. I also own the HD 490 Pro and the Fiio FT1, and they all serve different moods. While the 490 Pro is wider and better for picking out every tiny detail in a mix plus I also use them for gaming using custom audio cables from Hart Audio, and the FT1 is a "disruptor" with deeper bass because it’s a closed-back design and under $170, the 660S2 is the one I reach for when I just want to get lost in the music. It’s a premium piece of gear that feels like a long-term investment for anyone who loves high-quality audio.

## Features

- Audiophile-Grade Open-Back Sound: These Sennheiser over the ear headphones provide a natural, high-fidelity sound with a spacious soundstage. The over the head HiFi headphones are great for immersive music experiences and long listening sessions
- Precise Highs & Deep Sub-Bass: Sennheiser open back headphones HD660S2 with ultra-light aluminum voice coil & 42mm transducers deliver detailed highs, rich mids, & deep, controlled bass. Overhead headphones are great for gamers, professionals, podcasters
- Powerful Low-End Performance: These wired over ear head phones let you feel every note from piano lows (27.5 Hz) to bass drums (45–60 Hz) with clarity and precision, whether it is for gaming sessions, listening to music, or for desktop use
- Exceptional Comfort: Open-back design with breathable, plush ear cushions ensures fatigueless listening during long sessions, making them audiophile headphones that have a comfortable fit and can work for music listeners or as gaming headsets
- Premium Build Quality: Sennheiser HD 660S2 audiophile headphones are crafted with expertly crafted materials in Germany & Ireland for durability, elegance, and long-lasting performance, making them head phones over ear for music lovers & music production

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BRT1ZN7Q |
| Additional Features | stereo pairing |
| Age Range Description | Adult |
| Antenna Location | music |
| Audio Driver Size | 42 Millimeters |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #7,083 in Electronics ( See Top 100 in Electronics ) #251 in Over-Ear Headphones |
| Brand | Sennheiser |
| Brand Name | Sennheiser |
| Built-In Media | 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 |
| Cable Features | Detachable |
| Color | Black |
| Compatible Devices | Smartphone |
| Connectivity Technology | Wired |
| Control Method | Touch |
| Control Type | Media Control |
| Customer Package Type | Protective delivery packaging with a portable carry pouch |
| Customer Reviews | 4.5 out of 5 stars 733 Reviews |
| Ear Placement | Over Ear |
| Earpiece Shape | Oval |
| Enclosure Material | Aluminum |
| External Testing Certification | nao aplicavel |
| Form Factor | Over Ear |
| Frequency Range | 8 Hz - 41.5 kHz |
| Global Trade Identification Number | 00810091270370, 04260752330374 |
| Headphone Folding Features | Over Ear |
| Headphone Jack | 1/4 inch TRS, 4.4 mm TRRRS |
| Headphones Ear Placement | Over Ear |
| Impedance | 300 Ohms |
| Item Weight | 0.3 Kilograms |
| Manufacturer | Sonova |
| Model Name | HD 660S2 |
| Model Number | 700240 |
| Noise Control | Sound Isolation |
| Number of Items | 1 |
| Series Number | 700240 |
| Specific Uses For Product | Music |
| Style Name | Headphones |
| Theme | Music |
| Unit Count | 1.0 Count |
| Warranty Description | 2 year manufacturer |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Sennheiser
- **Color:** Black
- **Ear Placement:** Over Ear
- **Form Factor:** Over Ear
- **Impedance:** 300 Ohms

## Images

![HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance, Over-Ear Headphones for PC, Music, Gaming, Podcasts, Premium Black - Image 1](https://m.media-amazon.com/images/I/81xpWUthgjL.jpg)
![HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance, Over-Ear Headphones for PC, Music, Gaming, Podcasts, Premium Black - Image 2](https://m.media-amazon.com/images/I/817UGTinqML.jpg)
![HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance, Over-Ear Headphones for PC, Music, Gaming, Podcasts, Premium Black - Image 3](https://m.media-amazon.com/images/I/814Sdp71ZfL.jpg)
![HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance, Over-Ear Headphones for PC, Music, Gaming, Podcasts, Premium Black - Image 4](https://m.media-amazon.com/images/I/8183ipznGjL.jpg)
![HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance, Over-Ear Headphones for PC, Music, Gaming, Podcasts, Premium Black - Image 5](https://m.media-amazon.com/images/I/8138ojDelEL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is this model better or 660?**
A: You have to understand that the Sony Z7M2 are 56 ohms so they are easy to drive. Now on the other hand the 660s are 150 ohms and need a little more power to drive them. Now the 660s2 are 300 ohms which need more power. I have the 660s and have no problems with them. I want to get the 660s2 but don't want to take a chance on buying them and I can't drive them with my setup. Hope this help you out. Have a great day.

**Q: Would these be great when used with a Steam Deck?**
A: Thanks for your question. The HD 660S2 will go very well with Steam Deck.
World Wide Stereo – since 1979 – and a proud authorized Sennheiser dealer.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's magic: enter the concert hall
*by F***Y on June 9, 2024*

Update on August 9, 2024: The iFi DAC combined with the iFi Zen Can produced clear sound and proper dynamics, but human voice sounded feeble and harmonics were missing (that is, a concert piano sounded like an electronic one). I figured it was the amplifier, not the headphones, so I gave a try to an XDUOO TA-10R, which is a hybrid headphone amp, using a balanced tube and Class A amplification (USB, optical, RCA, and coax inputs, a pseudo-balanced output that still sounds better than the 6.3mm unbalanced one). Once I swapped out the factory tube for a Gold Lion, the sound stage opened up, human voice became full, and the harshness around the high C vanished. Even poor recordings (uncompressed) sound good, providing a lot more presence than I experienced from the iFi combo. The fullest sound that goes deepest uses a Tungsram tube. I must admit that a $40 Koss would probably meet most people's need. Also, as my old friend said about 50 years ago, no headphone can compete with a good room setup (which can be hilariously expensive, but not necessarily. Compiling it from used items, you can get one for around $10k, which is still a lot less than the top-of-the-line headphones that still can't compete with it. Original review from May 24, 2024: Every time I put them on, I feel mesmerized. Have never had this experience with any other headphones; it's like the music comes to life around my head, as if I was present at the performance. Granted, that applies mostly to classical music, and the sound can easily bring tears into my eyes. Still, these babies produce excellent sound for everything I've put on them. I'm not a gamer, so I can't comment on the gaming performance, but there is at least one 5-star review on that subject. Anyway, beyond the subjective, sources and recordings are also essential to consider as well as the connections, so let me submerge into those details. Good headphones are no good for compressed sound, but plenty of headphones are made for such a clientele. The s2 with its refined sound is targeting an audience that cares for the original sound. Please, notice that when people "burn in" new equipment, during much of that (except for diaphragms in speakers), what happens is that the components adjust to each other, especially on the analogue side. The outcome ultimately determines if their combination is feasible or not. My current setup has been serving me well in the last five years or so, so I haven't made any changes. I used an iFi Zen DAC v1 (from the USB port on computer) and an iFi Zen Can v1 (on the RCA input from a relatively high-end LG Blu Ray player from the optical port through a digital-to-analogue converter). Connected the DAC with the amp through their balanced ports with a short decent balanced cable. Both amps were hooked up to the sources with SVS interconnect cables. Didn't use the "Trubass" feature on either one, because for my taste, it upsets the sound balance (the DAC also amps the bass at a higher frequency than the amp). My sources were the usual high-resolution recordings (both pop and classical) and Blu Ray movies I use for testing new components. The most prominent strengths of the s2 is extended bass and an adherence to the original sound signature. While the OEM cables are fine, out of the two supplied, I favor balanced one. I have found a purchase for a previous Sennheiser that didn't work out at the time giving me better resolution. Amazon is still selling it: KK Cable II-SO. (Added on 6/28/24: for movies, the original balanced cable works better; the KK produces less bass in return for better instrument positioning, and dialogues suffer from human voice being elevated around 500Hz, which makes conversations harsh and unpleasant to listen to. The original cable goes deeper, although perhaps a bit muddied in the lowest end, but conversations are clear). The only problem with the extended bass is that the housing loses a little control over it beyond a certain (obviously VERY high) volume, so I can sort of feel the ear cups moving, which breaks the illusion of being present. This is probably the main reason why the pressure around the ears is relatively high (and loosening it might not be the best idea). The s2 might not be the best for someone with a large head (it might feel uncomfortably tight) or unusually large ears that the ear cups cannot cover, and it took me a few days to get used to it, because I am on the high end of average head and ear sizes. The included bag is a plastic dust collector; I am using an anti-static bag instead. Hard cases are available for transportation, but the original box works for that, if only on occasion. As opposed to the planars I've heard (Moondrop Para and Hifiman HE400se, but others report the same problems with lot costlier planars), the s2 retains the familiar sound on the recordings I usually use for testing new equipment, and it extends the listening experience in gentle, but important ways. The bass reverberates in the concert hall, and is not victim to extensive channel separation. Even harmonics play the same or better than on anything else I've heard in this price range or below, although this is a feature that can warrant higher investments. No problem with high-pitched human voice being harsh and sibilants don't suppress other frequencies; the performance is actually toned down a bit in order to retain the sound that recordings must have been meant to sound like. In my understanding "warm sound" is often used for describing the feature, perhaps because no highs and mids dominate at the expense of the bass or each other. Despite the somewhat reserved (but not veiled) presentation, the dynamics don't suffer. I believe, the secret is ingenious engineering that uses physics: the proper driver and built-in sound paths in the earphones. Many other headphones have built-in electronics in the sound path, allegedly, to protect the user's hearing, but to me, it seems more like protecting the drivers from overload. Consequently, the s2 doesn't clip at low bass (emit a clicking sound, while cutting out the sound), while most the sound is there in that region, too. The headroom is like sitting in the concert hall, albeit a bit further in the back that the eight row, but the sound image remains steady at various volume levels. To me, the harmony and the unity of the sound, along with the original sound signature, is worth the price. Added on 04/03/25: The best cable I've found for these is https://www.amazon.com/gp/product/B0BZMS68RV, although it lasted only for six months. The best amplifier in this price range is a hybrid tube (the tube is only for buffering a Class A headphone amp) is the XDUOO TA-10R. Added on 12/22/25 The best affordable tube headphone amp for these turned out to be a Fosi GR70, available on Amazon, where I also bought it for under $180.

### ⭐⭐⭐⭐⭐ Intimate, Lifelike Sound That’s Worth Every Penny (If You Catch a Sale)
*by T***Z on March 29, 2026*

Sennheiser HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance, Over-Ear Headphones for PC, Music, Gaming, Podcasts, Premium Black I’ve actually bought these headphones three separate times now. There seems to be an ongoing price war between Amazon and Best Buy to see who can drop the price the lowest, and I kept chasing the deal. If you can snag these for under $420, they are absolutely worth it. If the price jumps back up toward $600, keep an eye out for the refurbished models that pop up around $350—they are what the product should be priced at. I’m currently running these through a Fosi Audio DS2 (the 2024 version) for both my PC and my portable gear. I use the 4.4mm balanced connection, which provides plenty of power to really let these breathe. If you’re using a standard headphone jack, your results might be a little different, but with a decent little DAC like the Fosi, they shine. The standout feature for me is how intimate and lifelike the vocals sound. Because the DS2 has a very neutral, "clean" profile, it balances out the natural warmth of the 660S2 perfectly. It creates a really relaxing, rich listening experience that doesn’t get tiring after a few hours. I bought these specifically for critical music listening, and they nailed exactly what I was looking for. In terms of the actual sound, the "stage" feels a bit narrow and close to your ears—it’s not a wide, airy stadium sound—but the bass is warm and has a nice punch to it. It feels impactful without being overwhelming. I also own the HD 490 Pro and the Fiio FT1, and they all serve different moods. While the 490 Pro is wider and better for picking out every tiny detail in a mix plus I also use them for gaming using custom audio cables from Hart Audio, and the FT1 is a "disruptor" with deeper bass because it’s a closed-back design and under $170, the 660S2 is the one I reach for when I just want to get lost in the music. It’s a premium piece of gear that feels like a long-term investment for anyone who loves high-quality audio.

### ⭐⭐⭐⭐⭐ Very good for 400 dollars
*by A***R on November 26, 2023*

Got these cans for 400 dollars for black Friday. SOUND: These headphones sound better to me than the rest of the 600 series simply due to their better sub-bass performance. They have a pretty wide soundstage, have excellent instrument separation and sound good with all music I have thrown at them. The mids perform excellently, just as the rest of the HD600 series, and the treble is sparkly and nimble but not fatiguing. These are a good, balanced, warm sounding pair of headphones that are well worth the price that I bought them for, however I could not recommend these for $600 as this price forces competition with a higher class of headphones. COMFORT: These headphones are the most comfortable pair I own, with nice soft earpads and a perfect amount of pressure that gets a good acoustic seal over my ears. My head is on the larger side, so as to the issue of clamping force, I really did not feel that they clamped too tightly. These are the kind of headphones that I could wear comfortably all day and forget I even have them on. DRIVING EQUIPMENT: To those that have mentioned an unimpressive performance from these headphones, when used without a headphone amplifier or properly specified piece of equipment, these headphones tend to sound a bit soulless, empty, or a bit muddy. However, the great thing about the HD600 series is that they tend to scale very well with good sound equipment. The difference in sound that an entry level Schiit DAC+Amp stack made was well worth it and really made these phones come to life. This does mean, however, that you should also consider the cost of an amplifier and DAC unit as a cost included with these headphones, so at minimum another $200 added onto the already expensive price. There are many other good options for headphones that are easier to drive and do not require a dedicated amp for this price range, so if this isn't for you, I would look elsewhere. Overall a great sound albeit a bit overpriced at MSRP.

## Frequently Bought Together

- Sennheiser Consumer Audio HD 660S2 - Wired Audiophile Stereo Headphones with Deep Sub Bass, Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil – Black
- NewFantasia Replacement Audio Upgrade Cable Compatible with Sennheiser HD650, HD600, HD580, HD58X, HD660S, HD660S2, Massdrop HD6XX Headphones 3meters/9.9feet

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*Store origin: HR*
*Last updated: 2026-05-21*