Is this model better or 660?

You have to understand that the Sony Z7M2 are 56 ohms so they are easy to drive. Now on the other hand the 660s are 150 ohms and need a little more power to drive them. Now the 660s2 are 300 ohms which need more power. I have the 660s and have no problems with them. I want to get the 660s2 but don't want to take a chance on buying them and I can't drive them with my setup. Hope this help you out. Have a great day.

Would these be great when used with a Steam Deck?

Thanks for your question. The HD 660S2 will go very well with Steam Deck. World Wide Stereo – since 1979 – and a proud authorized Sennheiser dealer.

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HD 660S2 - Wired Audiophile Stereo Headphones with Deep Sub Bass, Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil – Black

Product ID: 513309032

Details

Brand
Sennheiser
Colour
black
Ear placement
Over Ear
Form factor
Over Ear
Impedance
300 Ohms

🎧42mm airflow-optimized transducers

🎶Deep sub bass down to 27.5 Hz

🔊300Ω ultra-light aluminum voice coil

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MX$22025

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Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Elevate your sound game — Hear what others only dream of.

IMMERSIVE DEEP BASS - Feel every beat with double the sound pressure at the lowest octaves, bringing studio-quality sub bass to your ears.
STUDIO GRADE SOUND PRECISION - Experience crystal-clear highs and rich lows with 42mm airflow-optimized transducers designed for minimal distortion.
VERSATILE WIRED CONNECTIVITY - Includes detachable cables with multiple jack options and a protective carry pouch for on-the-go audiophiles.
OPTIMIZED AIRFLOW VENTILATION - Vented magnet system and steel mesh damping reduce air displacement for a natural, relaxed soundstage.
PREMIUM BUILD WITH LIGHTWEIGHT COMFORT - Ultra-light aluminum voice coil and ergonomic over-ear design ensure hours of fatigue-free listening.

The Sennheiser HD 660S2 wired headphones deliver audiophile-grade sound with a 42mm airflow-optimized transducer and ultra-light 300Ω aluminum voice coil, producing deep sub bass down to 27.5 Hz. Engineered with a vented magnet system and steel mesh damping, these over-ear headphones offer minimal distortion and exceptional sound isolation. Perfect for professionals and music lovers seeking immersive, studio-quality audio with premium comfort and versatile wired connectivity.

Specifications

ASIN	B0BRT1ZN7Q
Additional Features	stereo pairing
Age Range Description	Adult
Antenna Location	music
Audio Driver Size	42 Millimeters
Audio Driver Type	Dynamic Driver
Best Sellers Rank	#17,209 in Electronics ( See Top 100 in Electronics ) #313 in Over-Ear Headphones
Bluetooth Version	5
Brand	Sennheiser Consumer Audio
Built-In Media	HD 660S2 headphones, 6.3 mm cable (1.8 m), 4.4 mm cable (1.8 m), 6.3 mm to 3.5 mm adapter, Carry pouch
Cable Features	Detachable
Color	black
Compatible Devices	Smartphone
Connectivity Technology	Wired
Control Method	Touch
Control Type	Media Control
Customer Package Type	Protective delivery packaging with a portable carry pouch
Customer Reviews	4.5 4.5 out of 5 stars (719)
Earpiece Shape	over_ear
Enclosure Material	Aluminum
External Testing Certification	nao aplicavel
Frequency Range	8 Hz - 41.5 kHz
Global Trade Identification Number	00810091270370, 04260752330374
Headphone Folding Features	Over Ear
Headphone Jack	1/4 inch TRS, 4.4 mm TRRRS
Headphones Ear Placement	Over Ear
Impedance	300 Ohms
Item Weight	0.3 Kilograms
Manufacturer	Sonova
Model Name	HD 660S2
Model Number	700240
Noise Control	Sound Isolation
Number of Items	1
Sensitivity	300 Ohm
Series Number	700240
Specific Uses For Product	Music
Style Name	Headphones
Subject Character	no subject character
Theme	Music
Unit Count	1.0 Count
Warranty Description	1
Water Resistance Level	Not Water Resistant
Wireless Technology	Bluetooth

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