---
title: "Sennheiser HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance"
url: "https://omorp.com/product/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-b0brt1zn7q"
asin: "B0BRT1ZN7Q"
brand: "Sennheiser"
category: "audio"
price: "$433.28"
price_checked: "2026-08-12"
site: "Elan's Best (omorp.com)"
---

# Sennheiser HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance

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

The Sennheiser HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance was $433.28 when we checked it on 2026-08-12.

## Overview

About this item 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

## Specifications

- Brand Name: Sennheiser
- Model Number: 700240
- Model Name: HD 660S2
- Impedance: 300 ohm
- Audio Driver Type: Dynamic Driver
- Audio Driver Size: 42 millimeters
- Enclosure Material: Aluminum

## Price history (tracked by Elan's Best)

- Current: $433.28 (checked 2026-08-12)
- Lowest we have recorded: $433.28 on 2026-08-12
- Highest we have recorded: $433.28 on 2026-08-12
- Our own weekly checks: 1 over 0 days, from 2026-08-12 to 2026-08-12

## Common questions

### Is the Sennheiser HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance worth it?

About this item 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 Its Amazon listing shows 4.5 out of 5 stars across 773 ratings, which is the retailer's figure and not our verdict.

### How much does the Sennheiser HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance cost?

The Sennheiser HD 660S2 - Audiophile Open-Back Over Ear Headphones with Deep Bass Extension and Refined Acoustic Performance was $433.28 when we checked it on 2026-08-12. Amazon lists it at $679.95, a price we have never recorded ourselves. Prices change often, so the live retailer link carries the current number.

Retailer rating (from the Amazon listing, not our score): 4.5 out of 5 across 773 reviews.

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Disclosure: Elan's Best may earn an affiliate commission on purchases made through our links, at no extra cost to the buyer. Commissions never change our picks.

Source: https://omorp.com/product/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-b0brt1zn7q