---
product_id: 529596679
title: "HD 660S2"
brand: "sennheiser"
price: "R10747"
currency: ZAR
in_stock: null
reviews_count: 13
category: "Sennheiser"
url: https://www.desertcart.co.za/products/529596679-hd-660s2
store_origin: ZA
region: South Africa
---

# 300Ω impedance for pristine clarity Extended sub-bass impact, deep & distortion-free Ultra-light 38mm aluminum voice coil HD 660S2

**Brand:** sennheiser
**Price:** R10747
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate your audio game — hear every detail, feel every beat.

## Quick Answers

- **What is this?** HD 660S2 by sennheiser
- **How much does it cost?** R10747 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/529596679-hd-660s2)

## 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

- • **Bass That Moves You:** Redesigned airflow transducer doubles low-frequency output delivering deep, impactful bass without distortion.
- • **Immersive Soundstage:** Open-back design recreates a speaker-like spatial experience, perfect for critical listening and music production.
- • **Versatile Connectivity:** Includes balanced 4.4mm and unbalanced 6.3mm cables plus 3.5mm adapter for seamless integration with all your devices.
- • **Audiophile-Grade Precision:** German-designed, Irish-assembled craftsmanship ensures unmatched build quality and sonic accuracy.
- • **Comfort for Marathon Sessions:** Lightweight 260g frame with plush velour ear cushions and ergonomic headband for fatigue-free listening.

## Overview

The Sennheiser HD 660S2 are premium open-back audiophile headphones featuring a 300 Ohm impedance and ultra-light 38mm aluminum voice coils. Expertly crafted with German components and assembled in Ireland, they deliver an expansive soundstage with extended sub-bass impact and minimal distortion. Designed for long listening sessions, they combine plush velour ear cushions and ergonomic design with versatile cable options and a 2-year warranty, making them the ultimate choice for discerning music professionals and enthusiasts.

## Description

Sennheiser HD 660S2 Open‑Back Hi-Res Audiophile Headphones, Ultra‑Light Aluminum Voice Coil, Extended Sub‑Bass, 300 Ohm Impedance & Airflow Transducer, Plush Ear Cushions, Premium Comfort, 2Y Warranty : desertcart.in: Electronics

Review: Best entry audiophile headphones - Been using for 6 months now, even with rough use its been holding up better than my gaming headphones (Logitech G pro X). It was able to run off my motherboard audio(supremefx audio chip with 9 resistors) But even with full volume it only gave out what my Dac & Amp gives in 15-20 volume Pros: long lasting comfort for my big head with ample earcup size, no matter how high the volume is, the headphones don’t crackle or cut out the sounds, you may need a appropriate Dac and amp to support these headphones (the one I use it Fiio K11 R2R). Can be run off iphone with iphone’s headphone dongle too. Cons: the size adjustment Sometimes feels very hard to adjust which in turn feels like breaking, but the build quality is insane for what its worth, and even with getting the headphone get hit or banged on table, i dont see any visible scratches after 6 months. The velour earpads need some maintenance tho If u r a bass lover, open back headphones are not for you But if you try these out, u wouldn’t want to go back to closed back or bassy headphones much
Review: Amazing detail & wide soundstage from a closed back - Amazing detail in sound. The HD820 headphones are very comfortable with moderately good sound isolation. The headphones originally had an issue with the right side driver emitting soft rattle with heavy bass frequencies. Contacted Sennheiser (Sonova India) and got a replacement under warranty. The experience with Sennheiser Service (Sonova India) was seamless. Everyone along the chain were prompt in responding & updated me on the status. The Rep assisted me by guiding me on how to send them to the service centre in Delhi. Everything went seamless. With this service experience with Sennheiser India, i now have more confidence in buying more Sennheiser products. I constantly keep track for deals on Sennheiser Headphones. Started my Audiophile Journey with Sennheiser MXW1 (World's 1st Wireless Earbuds) in 2008 and bought several Sennheiser Headphones all over the world since. No matter what country i was in i was able to find Sennheiser products easily compared to any other brand. The journey continues.

## Features

- GERMAN‑DESIGNED, IRISH‑ASSEMBLED – Expertly engineered components from Germany assembled in Ireland, ensuring consistent build precision and quality
- EXTENDED SUB‑BASS IMPACT – Redesigned voice coil and optimized airflow double low-frequency output for deep, impactful bass without distortion
- 38MM ULTRA‑LIGHT ALUMINUM VOICE COIL – Delivers improved impulse response and pristine clarity across the 8Hz–41.5kHz range.You can feel the lowest note on the piano (27.5 Hz) or the kick of the bass drum (45-60 Hz) as if you were there, at the recording studio
- AIRFLOW‑OPTIMIZED TRANSDUCERS – Advanced vented magnet system and steel-mesh damping reduce distortion while maintaining tight bass and airy mids
- HIGH IMPEDANCE & OPEN DESIGN - 300 Ohm open-back dynamics produce a neutral, relaxed, high-fidelity listening experience ideal for critical listeners
- PREMIUM COMFORT FOR ENDURANCE LISTENING – Lightweight (~260 g), velour ear pads, and ergonomic headband ensure fatigue-free comfort even during extended use
- SPEAKER‑LIKE SOUNDSTAGE – Designed to recreate the openness and space of high-end speakers, capturing natural sound imaging
- INCLUDES PREMIUM ACCESSORIES – Comes with both 4.4 mm Pentaconn balanced and 6.3 mm unbalanced cables plus 3.5 mm adapter for versatile connectivity and carry case
- BACKED BY A 2-YEAR WARRANTY – Enjoy peace of mind with Sennheiser’s trusted quality assurance and after-sales support.
- SPECIFCATIONS - Transducer principle : dynamic, open,Impedance : 300 Ohms, Frequency response (speaker) : 8 Hz - 41,500 Hz, Sound pressure level (SPL) : 104 dB (1 V), Total harmonic distortion (THD) <0,04 % (1kHz/100 db SPL) Adapter: 6.3 mm (1⁄4 inch) to 3.5 mm, Cable length : 1.8 M

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BT7XXYTB |
| Age Range (Description) | Adult |
| Audio Driver Type | Dynamic Driver |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #97,452 in Electronics ( See Top 100 in Electronics ) #286 in Over-Ear Headphones |
| Cable Feature | Detachable |
| Cable feature | Detachable |
| Compatible Devices | Cellphones, Gaming Consoles, Laptops, Music Production Equipment, Portable Media Player, Tablets |
| Connectivity Technology | Wired |
| Control Method | Touch |
| Control Type | Media Control |
| Country of Origin | Ireland |
| Customer Reviews | 4.5 4.5 out of 5 stars (561) |
| Date First Available | 14 March 2023 |
| Earpiece Shape | Over Ear |
| Frequency Response | 41500 Hz |
| Generic Name | Audiophile Headphone |
| Global Trade Identification Number | 00810091270370, 04260752330374 |
| Hardware Interface | 3.5mm Audio |
| Headphones Jack | 3.5 mm Jack |
| Importer | Sennheiser Electronics India Private Limited, 104 A,B,C Time Tower, Mehrauli-Gurgaon Rd, Sector 28, Gurugram, Haryana 122002 |
| Included Components | 6.3 mm cable (1.8 m), 4.4 mm cable (1.8 m), 6.3mm to 3.5mm adapter, HD 660S2 headphones, Protective Case |
| Includes Rechargeable Battery | No |
| Item Dimensions LxWxH | 24.2 x 18.2 x 10 Centimeters |
| Item Weight | 260 g |
| Item model number | 700240 |
| Manufacturer | Sennheiser |
| Material | Aluminium |
| Model | 700240 |
| Model Name | HD 660S2 |
| Model Year | 2023 |
| Net Quantity | 1 Count |
| Noise Control | None |
| Number of Items | 1 |
| Packer | Sennheiser electronic gramsbH & Co. KG. Am Labor 1. DE - 30900 Wedemark Germany |
| Product Dimensions | 24.2 x 18.2 x 10 cm; 260 g |
| Series number | 660 |
| Special Feature | Audiophile Stereo Headphones |
| Special Features | Audiophile Stereo Headphones |
| Supports Bluetooth Technology | No |
| UPC | 810091270370 |

## Product Details

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

## Images

![HD 660S2 - Image 1](https://m.media-amazon.com/images/I/81EVN1kWYjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best entry audiophile headphones
*by A***D on 8 October 2025*

Been using for 6 months now, even with rough use its been holding up better than my gaming headphones (Logitech G pro X). It was able to run off my motherboard audio(supremefx audio chip with 9 resistors) But even with full volume it only gave out what my Dac & Amp gives in 15-20 volume Pros: long lasting comfort for my big head with ample earcup size, no matter how high the volume is, the headphones don’t crackle or cut out the sounds, you may need a appropriate Dac and amp to support these headphones (the one I use it Fiio K11 R2R). Can be run off iphone with iphone’s headphone dongle too. Cons: the size adjustment Sometimes feels very hard to adjust which in turn feels like breaking, but the build quality is insane for what its worth, and even with getting the headphone get hit or banged on table, i dont see any visible scratches after 6 months. The velour earpads need some maintenance tho If u r a bass lover, open back headphones are not for you But if you try these out, u wouldn’t want to go back to closed back or bassy headphones much

### ⭐⭐⭐⭐⭐ Amazing detail & wide soundstage from a closed back
*by A***U on 24 June 2025*

Amazing detail in sound. The HD820 headphones are very comfortable with moderately good sound isolation. The headphones originally had an issue with the right side driver emitting soft rattle with heavy bass frequencies. Contacted Sennheiser (Sonova India) and got a replacement under warranty. The experience with Sennheiser Service (Sonova India) was seamless. Everyone along the chain were prompt in responding & updated me on the status. The Rep assisted me by guiding me on how to send them to the service centre in Delhi. Everything went seamless. With this service experience with Sennheiser India, i now have more confidence in buying more Sennheiser products. I constantly keep track for deals on Sennheiser Headphones. Started my Audiophile Journey with Sennheiser MXW1 (World's 1st Wireless Earbuds) in 2008 and bought several Sennheiser Headphones all over the world since. No matter what country i was in i was able to find Sennheiser products easily compared to any other brand. The journey continues.

### ⭐⭐⭐⭐⭐ Amazing
*by B***H on 2 October 2025*

Wow ,paired with Fosi DS2 balanced output and voila! What a soundstage. Everything is perfect,I didn’t know fosi has so much details and neutral soundstage. Apple Lossless sounds like never before on iPhone 14

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.za/products/529596679-hd-660s2](https://www.desertcart.co.za/products/529596679-hd-660s2)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-12*