[Prime] Sennheiser HD 660S2 Wired Open Headphones $500 Delivered @ Amazon AU

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n3ck3ntry8bort0rgasm on 10/07/2025 - 23:50 amazon.com.au (356 clicks)
Last edited 13/07/2025 - 18:55 by 2 other users

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previous ATL posted for $594. how much is it normally? $649 (non Prime price - some places selling for $950 wow).

no way I'm spending $500 on headphones but saw a few posted in this price range. (HD490 Pro for more than this, HD600 is normally ~$400 I remember seeing $299 once but that was just before covid )

just from the Sennheiser AU page image, looks like it actually has more bass than the 600 or 650 (the 600 line looks like the 660 S line in the picture).

for some reason the official Senn page doesn't have any more info to add than the amazon page. ok found it on the US page.

About this item

⁕Natural, relaxed, high-fidelity sound with extra sub bass: Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response and an intimate sound with great timbre
⁕Airflow-optimised 42mm high-performance transducers: Improved ventilation due to a uniquely powerful vented magnet system for minimal distortion and air displacement control through steel mesh damping
⁕Double the sound pressure at the lowest octaves: 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
⁕Exceptional comfort and build quality: The open-back design offers exceptional breathability and the plush ear cushions deliver maximum comfort - for long listening sessions
⁕Outstanding quality designed in Germany, made in Ireland: With a frequency response of 8 Hz - 41,500 Hz and detachable, long cables for comfortable desktop use

More Info:

Transducer principle dynamic, open
Transducer size 38 mm
Frequency response
8 – 41,500 Hz
Impedance 300 Ω
Sound pressure level (SPL)
104 dB (1 kHz, 1 Vrms)
Total harmonic distortion (THD)
<0.04% (1 kHz, 100 dB)
Ear coupling Over-Ear
Weight 260g
Adapter
6.3 mm (1⁄4 inch) to 3.5 mm
Connector
6.3 mm (1⁄4 inch) jack plug, 4.4 mm balanced plug
Cable length 1.8m
Country of origin Ireland

What’s in the box

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 and carry pouch.

Price History at CamelCamelCamel.

This is part of Amazon Prime Day sales for 2025

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• 

  Hornpub on 11/07/2025 - 01:28

  -1

  Do we still need to bother other sub 500$ headphone when ft1 and ft1 pro exists ?

  • 

    beeze on 11/07/2025 - 08:26

    +2

    The 600 series is timeless and for discerning ears. FT1 are great with EQ, less refined.

    Personally I would rather keep my FT1 and Edition XS and have these for similar coin.

    • 

      I-NeedDeals on 13/07/2025 - 19:04

      +1

      What about for people who can only afford a single special pair of headphones

      • 

        n3ck3ntry8bort0rgasm on 13/07/2025 - 20:22

        +1

        I know I posted this but look at the graphs.

        HD600 series including 660S2 all have almost no bass below ~80Hz. I find it weird to be honest why so many audiophile subreddit people love this headphone or have good feelings towards it. 660S2 has a bit more bass than 660S, and also 600, and on 660S2 page it says "you will feel the full weight of piano notes" so maybe that little difference is more than I think.

        but yeah a more powerful amp isn't going to magically bring everything below 80Hz higher. idk but maybe I am not a german audio engineer so I know nothing about what sounds "natural".

        all my basic ass brain knows is headphone jack output impedance can have a effect. but from what i know if it's a match (below 1/8 of headphone) it sounds exactly like the graph, if it's not a match (over 1/8 ratio) it actually boosts just the area on the headphone that has high impedance. on HD600 it's 100hz.

        600 series are 300ohm. so you need an amp with 37.5ohm output impedance to get a boost at 100hz. afaik majority of headphone jack output is ~1ohm or <1ohm.
        deleted. whoops I was looking at the blue line which was phase.

• 

  ransworld on 11/07/2025 - 11:56

  +1

  The HD 600 is $300 on the same listing—that’s a great price.

  • 

    n3ck3ntry8bort0rgasm on 11/07/2025 - 14:16

    +2

    it was already posted I think.

    and stupid me didn't connect the dots how I saw it for $299 before covid, and it's now $300 only $1 more. 😭

    • 

      freelife on 13/07/2025 - 19:50

      $300 is good for TRS being the minimum

      • 

        n3ck3ntry8bort0rgasm on 13/07/2025 - 20:13

        I had no idea. I don't travel obviously. 🤣

• 

  ColdFusion on 11/07/2025 - 23:00

  +2

  They are $450 with coupon at the moment

  • 

    n3ck3ntry8bort0rgasm on 11/07/2025 - 23:27

    thanks added to deal.

• 

  tienanbich on 12/07/2025 - 02:54

  +1

  I have the 560s. Should I go for this, or is the hd 6xx at $250 (new, fb market place) worth an upgrade?

  • 

    n3ck3ntry8bort0rgasm on 13/07/2025 - 20:13

    +1

    from what I heard 560S is one of the best sennheisers in terms of overall sound.

    if you go to 600 or 660S2 you will think you have no bass.