Sennheiser HD 660 S
$$$ FlagshipTrending Down$434.85
tldr; Upgraded HD 600 series. Intimate mids, detailed highs. Smaller soundstage than 800S but fantastic timbre. Add G6 DAC for full potential.
$434.85 on AmazonSentiment Breakdown
30%Positive
Positive
30%Neutral
54%Negative
16%Based on 50 Reddit opinions
Strengths & Weaknesses
Scores based on sentiment analysis of topic-related comments
Key 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
- 🎵 Sennheiser mids
- 🎯 Intimate soundstage
- 🔊 Needs amp/DAC
Historical Price Data
Sennheiser HD 660 S
Sennheiser HD 660 S
All-time low: $372.21(2023-07)
$10 below 90-day avg
What Redditors Actually Say
What Redditors Say
Best praise vs top criticism for Sennheiser HD 660 S
Best Praise
+3 pts“I don't really use mine for music, but would have kept my HD660S if i had. A/B testing PC38X/H6pro I find the PC38X to be a bit flat/neutral in comparison, 'best' is subjective and might be in your case. But preference aside the H6pro is definitely the more fun sounding of the two when it comes to gunshots and explosions/immersion etc, and directional audio/soundstage is just as good, so much so I'm contemplating selling the PC38X as the inferior headset..”
r/gaming_headsets
ViewTop Criticism
+2 pts“Skip the hd660 not worth it. Also never buy a crappy blue yeti. Check out podcastage for mic reviews on YouTube. But in a budget get a q2u. Hd660 sucks for fps.”
r/gaming_headsets
View13 more quotes available below
Related Products
Frequently Asked Questions
Is the Sennheiser HD 660 S worth buying?
Upgraded HD 600 series. Intimate mids, detailed highs. Smaller soundstage than 800S but fantastic timbre. Add G6 DAC for full potential.
What do Redditors love about the Sennheiser HD 660 S?
Redditors highlight: 🎵 Sennheiser mids. 🎯 Intimate soundstage. 🔊 Needs amp/DAC.
What are the downsides of the Sennheiser HD 660 S?
Some criticisms include: "Skip the hd660 not worth it. Also never buy a crappy blue yeti.
Check out podcastage for mic reviews on YouTube. But in a budget get a q2u.
Hd660 sucks for fps...."
How accurate are these ratings?
Our sentiment analysis is approximately 80-85% accurate compared to manual review. Products with more mentions (Sennheiser HD 660 S has 50) tend to have more reliable scores.
50 Reddit opinions analyzed • Last updated 4/5/2026