---
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: "€ 872.60"
currency: EUR
in_stock: true
category: "Sennheiser"
url: https://www.desertcart.hr/products/509545979-hd-660s2-audiophile-open-back-over-ear-headphones-wired-deep
store_origin: HR
region: Croatia
---

# 42mm transducers for rich sound 27.5 Hz deep bass extension Premium aluminum build 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:** € 872.60
**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?** € 872.60 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/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

- • **Durable Elegance:** Crafted with premium aluminum in Germany & Ireland for a sleek, long-lasting professional look.
- • **Open-Back Comfort:** Breathable, plush ear cushions designed for fatigue-free, marathon listening or gaming sessions.
- • **Plug & Play Versatility:** Wired with detachable cables and 3.5mm jack compatibility for seamless use across your devices.
- • **Powerful Low-End Impact:** Feel every note from piano lows to bass drums with crystal-clear precision and control.
- • **Audiophile-Grade Clarity:** Experience ultra-precise highs and deep, textured bass that reveals every musical detail.

## Overview

The Sennheiser HD 660S2 are premium open-back over-ear headphones featuring 42mm transducers and an ultra-light aluminum voice coil that deliver natural, high-fidelity sound with deep bass extension down to 27.5 Hz. Designed for audiophiles, gamers, and professionals, they combine breathable plush cushions for all-day comfort with a durable, elegant build crafted in Europe. Wired connectivity with detachable cables ensures compatibility with a wide range of devices, making these headphones a timeless choice for immersive listening experiences.

## Description

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

## 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 |
| Antenna Location | music |
| Audio Driver Size | 42 Millimetres |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | 3,559 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 39 in Studio Headphones |
| Box Contents | 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 |
| Brand Name | Sennheiser |
| Cable Features | Detachable |
| Carrying Case Color | Black |
| Carrying Case Material | Breathable fabric or soft material |
| Colour | Black |
| Compatible Devices | Devices with 6.35 mm audio input or adapter compatibility |
| Control Method | Touch |
| Control Type | Touch Control |
| Country of Origin | Ireland |
| Customer Package Type | FFP |
| Customer Reviews | 4.3 4.3 out of 5 stars (609) |
| Earpiece Shape | Over-ear cups |
| Enclosure Material | Aluminium |
| Frequency Range | 8 Hz - 41,500 Hz |
| Frequency Response | 41500 Hz |
| Global Trade Identification Number | 00810091270370, 04260752330374 |
| Headphone Form Factor | Over Ear |
| Headphone Jack | 6.35 mm Jack |
| Headphones Ear Placement | Open Ear |
| Impedance | 300 Ohms |
| Is Autographed | No |
| Item Type Name | Over Ear Wired Headphone |
| Item Weight | 260 Grams |
| Manufacturer | Sennheiser |
| Model Name | HD 660S2 |
| Model Number | 700240 |
| Network Connectivity Technology | Wired |
| Noise Control | None |
| Number of Items | 1 |
| Product Features | Fast Charging |
| Sensitivity | 104 dB |
| Series Number | 660 |
| Specific Uses For Product | Music |
| Style Name | HD 660S2 |
| Theme | Music |
| UPC | 810091270370 |
| Unit Count | 1.0 count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | 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).

## 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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**Shop now:** [https://www.desertcart.hr/products/509545979-hd-660s2-audiophile-open-back-over-ear-headphones-wired-deep](https://www.desertcart.hr/products/509545979-hd-660s2-audiophile-open-back-over-ear-headphones-wired-deep)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-18*