---
product_id: 509545979
title: "HD 660S2 - Audiophile Open-Back Over Ear Headphones Wired with Deep Bass Extension and Refined Acoustic Performance for PC, Music, Gaming, Podcasts, Premium Black"
brand: "sennheiser"
price: "R17710"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Sennheiser"
url: https://www.desertcart.co.za/products/509545979-hd-660s2-audiophile-open-back-over-ear-headphones-wired-deep
store_origin: ZA
region: South Africa
---

# 42mm ultra-light transducers Deep bass extension down to 27.5 Hz Premium German & Irish craftsmanship HD 660S2 - Audiophile Open-Back Over Ear Headphones Wired with Deep Bass Extension and Refined Acoustic Performance for PC, Music, Gaming, Podcasts, Premium Black

**Brand:** sennheiser
**Price:** R17710
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game — because your ears deserve the VIP treatment.

## Quick Answers

- **What is this?** HD 660S2 - Audiophile Open-Back Over Ear Headphones Wired with Deep Bass Extension and Refined Acoustic Performance for PC, Music, Gaming, Podcasts, Premium Black by sennheiser
- **How much does it cost?** R17710 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/509545979-hd-660s2-audiophile-open-back-over-ear-headphones-wired-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

- • **Powerful Deep Bass:** Dive into every note with bass precision from 27.5 Hz to 60 Hz that brings your audio to life.
- • **All-Day Comfort Fit:** Breathable plush ear cushions and lightweight design keep you fatigue-free during marathon listening.
- • **Built to Last Elegance:** Crafted with premium materials in Germany & Ireland, these headphones combine durability with timeless style.
- • **Audiophile-Grade Clarity:** Experience pristine highs and rich mids with ultra-light aluminum voice coils for crystal-clear sound.
- • **Immersive Open-Back Design:** Feel the spacious soundstage that puts you at the center of your music, gaming, or podcast sessions.

## Overview

The Sennheiser HD 660S2 are wired, open-back over-ear headphones designed for audiophiles and professionals seeking natural, high-fidelity sound with deep bass extension. Featuring 42mm ultra-light transducers and premium build quality from Germany and Ireland, they deliver detailed highs, rich mids, and powerful lows down to 27.5 Hz. Their breathable, plush ear cushions ensure comfort for long sessions, making them ideal for music lovers, gamers, and podcasters who value clarity and durability.

## Description

Experience natural, relaxed high-fidelity sound with extra sub-bass. Ultra-light aluminum voice coil, optimized airflow, and plush comfort for long listening.

Review: My new favourite pair - 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.
Review: Best headphones I've ever had - Warning.... Don't judge them on first listen Run them in for a good 10-20 before Bucks Fizz Eurovision Winner Oooops, silly me, I mean, before making your mind up Initially they sound nice, but not 500 pound nice depending on what you pay for them Do not pay more than £500 though as with desertcart the price varies I got them for 464 but then the price dropped to 419.... I asked desertcart to refund the difference They wouldn't, but I could return them and reorder for the price I went to re order and suddenly the price was £500 Such shady dealings with desertcart, really shady Anyway....to the headphones After running in, they really are lovely sounding\ Not overloaded with Bass like a lot of these Beats headphones, which are completely overpriced because of the name The Bass is true, as in you actually hear the texture of a bass line rather than just some bass "noise" Instrument separation is very, very good The top end is what I would describe as smooth rather than overly detailed I mean, I getting on a bit, despite being 8-12 years old in the mind I'm actually middle aged..... what's middle aged you say? I dunno these daze I'd say 39-55 So as of the time of writing I'm somewhere in between that My hearing.. I can barely hear a 14khz tone now, so bear bare (how do you spell that?) in mind But it's probably better than most chaps my age, because once you past 30, the fact is you really do start to lose the top end of your hearing whether you like it or not Right, to the top end They tail off quicker than my Monito Audio Gold speakers But sound a tad smoother So ultimate detail might not be there if your ears need a bit of extra treble But they fit nice and are very comfy for long sessions, of listening that is 😊 You really have to wear them in a reasonably silent room though, as being open backed you will hear outside noises So if you're thinking of having these on whilst sitting next to the wife/husband/man friend/girlfriend/thing friend/in between friend I'd advise against getting them as they really do leak sound rather loudly I've had them a few months now, so I velvet, oops, I mean felt I could write a reasonable review Although reasonable I'm usually not Goodbye for now PS Also it asked me to give a star rating on "Sheerness" Seriously WTF is that all about I mean, is that a joke or you really want me to judge a headphone in relation to a place in Kent? Just nonsense, and I know nonsense when I see it

## Features

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BT7XXYTB |
| Age range (description) | Adult |
| Best Sellers Rank | 1,183 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 22 in Studio Headphones |
| Cable feature | Detachable |
| Compatible devices | Devices with 6.35 mm audio input or adapter compatibility |
| Connectivity technology | Wired |
| Connector | 3.5mm Jack |
| Control method | Touch |
| Control type | Touch Control |
| Customer Reviews | 4.4 4.4 out of 5 stars (563) |
| Date First Available | 7 Feb. 2023 |
| Hardware Interface | 3.5mm Audio |
| 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 |
| Item Weight | 260 g |
| Item model number | 700240 |
| Item weight | 260 Grams |
| Material | Aluminium |
| Material Type | Aluminium |
| Number of items | 1 |
| Package type | FFP |
| Power Source | Corded Electric |
| Product Dimensions | 24.2 x 18.2 x 10 cm; 260 g |
| Recommended uses for product | music |
| Size | one size |
| Speaker Amplification Type | Passive |
| Specific uses for product | Music |
| Style | HD 660S2 |
| Water resistance level | Not Water Resistant |
| Wireless communication technology | Kopfhörer mit Kabel |

## Product Details

- **Brand:** Sennheiser
- **Colour:** Black
- **Ear placement:** Open Ear
- **Form factor:** Over Ear
- **Frequency response:** 41500 Hz
- **Headphone jack:** 6.35 mm Jack
- **Impedance:** 300 Ohms
- **Model name:** HD 660S2
- **Noise control:** None
- **Sensitivity:** 104 dB

## Images

![HD 660S2 - Audiophile Open-Back Over Ear Headphones Wired with Deep Bass Extension and Refined Acoustic Performance for PC, Music, Gaming, Podcasts, Premium Black - Image 1](https://m.media-amazon.com/images/I/81EVN1kWYjL.jpg)

## Available Options

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

## Questions & Answers

**Q: That 300 ohm impedence frightens me. i have ak sr25 mk2 music player i assume ok but i want to listen to movies from hifi amplifier, are both ok?**
A: I’m not sure ….. I listen through a modestly-priced iFi dac & headphone amp and they don’t struggle at all for power 👍🙂

**Q: Fast charging ? As per spec.**
A: These headphones don't have batteries, so there's no fast charging (or any other kind of charging).

## Customer Reviews

### ⭐⭐⭐⭐⭐ My new favourite pair
*by L***E on 31 July 2024*

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.

### ⭐⭐⭐⭐⭐ Best headphones I've ever had
*by L***E on 26 October 2023*

Warning.... Don't judge them on first listen Run them in for a good 10-20 before Bucks Fizz Eurovision Winner Oooops, silly me, I mean, before making your mind up Initially they sound nice, but not 500 pound nice depending on what you pay for them Do not pay more than £500 though as with Amazon the price varies I got them for 464 but then the price dropped to 419.... I asked Amazon to refund the difference They wouldn't, but I could return them and reorder for the price I went to re order and suddenly the price was £500 Such shady dealings with Amazon, really shady Anyway....to the headphones After running in, they really are lovely sounding\ Not overloaded with Bass like a lot of these Beats headphones, which are completely overpriced because of the name The Bass is true, as in you actually hear the texture of a bass line rather than just some bass "noise" Instrument separation is very, very good The top end is what I would describe as smooth rather than overly detailed I mean, I getting on a bit, despite being 8-12 years old in the mind I'm actually middle aged..... what's middle aged you say? I dunno these daze I'd say 39-55 So as of the time of writing I'm somewhere in between that My hearing.. I can barely hear a 14khz tone now, so bear bare (how do you spell that?) in mind But it's probably better than most chaps my age, because once you past 30, the fact is you really do start to lose the top end of your hearing whether you like it or not Right, to the top end They tail off quicker than my Monito Audio Gold speakers But sound a tad smoother So ultimate detail might not be there if your ears need a bit of extra treble But they fit nice and are very comfy for long sessions, of listening that is 😊 You really have to wear them in a reasonably silent room though, as being open backed you will hear outside noises So if you're thinking of having these on whilst sitting next to the wife/husband/man friend/girlfriend/thing friend/in between friend I'd advise against getting them as they really do leak sound rather loudly I've had them a few months now, so I velvet, oops, I mean felt I could write a reasonable review Although reasonable I'm usually not Goodbye for now PS Also it asked me to give a star rating on "Sheerness" Seriously WTF is that all about I mean, is that a joke or you really want me to judge a headphone in relation to a place in Kent? Just nonsense, and I know nonsense when I see it

### ⭐⭐⭐⭐⭐ Good upgrade for correct price
*by J***K on 20 November 2025*

Got HD660S2 when it price dropped to around 400 euro. I already have HD600 so I can compare them side by side on Magni/Modi stack and new FOSI ZH3 I got for those sennheisers (I gave HD600 and Modi/Magni stack to my wife). Build Quality: same sturdy buid like HD600. I expect pads to wear similarly (2 years to replace). HD600 still going strong after 8 years...I expect same here. Fit and size: similar. Bit tight clamp force but you can stretch them by grabbing metal band only same as HD600. Same fit as 600(perfect). Amplification requirements: High. Those are 300Ohm...bit better sensitivity than HD600 (Means less juice for same volume) but you still need at least 2V RMS amp. Sound quality: Wider soundstage and more impact on sound...definitely more engaging than HD600. There is much more bass and mid bass but it's not overwhelming... making sound fuller and more forward. Highs and detail are same or better than HD600 on both devices (Magni and FOSI). Overall its sound is more...full and you feel like you don't use low end details or soundstage. Swapping between HD600 and HD660S2 (volume matched) seems like you get more sound in HD660S2. Now there is obe thing that HD600 are kings and that is timbre in mids...but HD660S2 are so close to them and you gain so much across the board is not even close. Now...for 400 euro yes...worth it. For more? Questionable upgrade vs HD600. If you don't have any of the HD6XX series...those are pretty much end game for most. Make sure its plugged to proper amp tough.

## Frequently Bought Together

- Sennheiser HD 660S2 Wired Audiophile Stereo Headphones with Deep Sub Bass, Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil – Black
- FIIO K11 Desktop 1400W Power Balanced Headphone DAC & Amplifier 384kHz/24Bit DSD256 for Home Audio/PC 6.35mm/4.4mm/RCA/Coaxial/Optical (Black)
- NewFantasia 4.4mm Balanced Male 6N OCC Copper Silver Plated Cord 4.4mm Balanced Cable Compatible with Sennheiser HD650, HD600, HD580, HD660S, HD58X, Massdrop HD6XX Headphone Walnut Wood Shell

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-15*