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Sennheiser HD660S... Finally a successor for the HD650?

Discussion in 'Headphones (full-size)' started by Levanter, Oct 8, 2017.
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  1. Ruinedforfun
    Yea it's normal, give it a couple weeks and it will go away. Or you can put the adjusters at max and bend the METAL part of the headband. Don't bend the plastic for the love of God
    bgtip and Deftone like this.
  2. haoyuan
    I stretched it using the box it came with. Just pull it apart and place over box like it’s your head.

    HD660s doesn’t have too big of a difference when using k3.
    KingFiercer and bgtip like this.
  3. Deftone
    Best to bend the head band metal when fully extended, do it a bit at a time until right incase of over stretching, also the pads get much softer over months. At around 4 months they should feel snug and cosy.

    Regarding the amp well imo 660 doesnt sound as different between amps compared to 650 and 600. It sounds really impressive even on cheap stuff, for 650 you would have to spend A LOT to get the bass to being as tight as 660 and to get the treble sparkle a bit more. I think a DAC is more important for 660 and amplifier more important for 650/600.
    1TrickPony and bgtip like this.
  4. KarlHU
    HD660s has a more modern tuning and easier to drive but HD650 is still good at its area (classical music I mean).
  5. homelis
    Are my pair of hd660s possibly faulty? They do not sound at all what everyone is describing them as, but even more veiled than even hd599. Going from hd599 and hd650 I expected something with higher freqs. It sounds like there is a low pass filter stuck on mine. They also don't seem to handle loud instant transients at all (i.e gun fire) and sort of splits the sound into two, as if they break attempting to play it.
  6. SilverEars
    660S or 650? If you mean 660S, I can identify with what you mean. I'd put it as a dynamic veil.
  7. Sigmaaa
    I cannot comment on hd599, but I have both hd660s and hd650, and hd660s has a bit more high frequencies, there's a bit more contour around cymbals. Gunshot sounds maybe sound like that (echoes etc) and hd650 can't make all the details, maybe there's "one note" treble, the same way there'a "one note" bass.
  8. homelis
    Mine definitely don't have more high freqs than hd650, I mean it's obvious to anyone putting these on right away. The difference is huge, which is what makes what people write here, and say in reviews make no sense to me.. I will be swapping them next week but just wanted to know if others here noticed anything like that or what they think. If they really sound like this, I have a hard time understanding how somebody could prefer these over hd650/hd599 or claim they have more higher freqs.
  9. geardoc
    The nature of human opinion. Add the additional factor of music, creating emotions. And, top it off with a forum populated with advertisers and commercial interests.
    trellus likes this.
  10. KaiFi
    I'm strongly considering getting these.

    Do you think the Fiio Q5 (with either AM3A or AM3B module) would be enough to drive it adequately? I've never used headphones with an impedance higher than 50 ohms and right now I only own portable amps.

    I have the HD 599 right now and like them (I listen mainly to classical music). I'm hoping the 660s feels like a worthy upgrade.
    Ruinedforfun likes this.
  11. Lay.
    With Q5 and balanced out yes. I prefer the AM3B. It has 4.4mm and slightly warmer and fuller sound. Not a big difference with the 660S though.
    Ruinedforfun and KaiFi like this.
  12. Ichos
    I have it with AM3A and balanced can drive them to full potential.
    It's also a very good sounding dac. (for my tastes)
    KaiFi likes this.
  13. bgtip
    I plan to buy this: https://amzn.to/2BwG7u1
    and I need to connect my 660S to it in balanced mode. As far as I can see it is a 4-pin XLR out on the amp.
    How can I do this?
  14. Ichos
    Very easy.
    1. Buy after market cable with 4 pin xlr termination.
    2. Buy another stock cable and have it terminated with 4 pin xlr
    3. Use your stock cable and have it terminated with 4 pin xlr.
    Then terminate the the remaining end with 4 pin xlr female so you have an adapter for 3.5mm connections
    If you can't solder your self you can have an expert do it for you.
    It's cheap buy 4 pin neutrik plugs.
    bgtip and pietcux like this.
  15. aisalen
    bgtip likes this.
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