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expirediconian | Staff posted Mar 25, 2022 10:57 PM
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expirediconian | Staff posted Mar 25, 2022 10:57 PM

Sennheiser HD 660 S Open-Back Audiophile Headphones

+ Free Shipping

$299

$500

40% off
Adorama
106 Comments 70,716 Views
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Deal Details
Update: This deal is still available.

Adorama has Sennheiser HD 660 S Open-Back Audiophile Headphones on sale for $299. Shipping is free.

Thanks to Deal Editor iconian for posting this deal.

Includes:
  • HD 660 S Open-Back Audiophile-Grade Hi-Fi Stereo Headphone (Black)
  • Cable with 1/4 " (6.35 mm) Plug
  • Cable with 0.17 " (4.4 mm) Pentaconn Plug-Balanced
  • 1/4 " to 1/8 " Adapter
  • Storage Box
  • Sennheiser 2 Year Limited Warranty

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
    • This matches a previous Frontpage deal from November 2021.
    • Our research indicates that Sennheiser HD 660 S Open-Back Audiophile Headphones is $91.95 lower (23.5% savings) than the next best available price from a reputable merchant with prices starting from $390.95 at the time of this posting. -StrawMan86
  • About this product:
    • 4.8 out of 5 stars rating at Amazon based on over 1,100 customer reviews
  • About this store:
    • View Adorama return policy here.

Original Post

Written by iconian | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This deal is still available.

Adorama has Sennheiser HD 660 S Open-Back Audiophile Headphones on sale for $299. Shipping is free.

Thanks to Deal Editor iconian for posting this deal.

Includes:
  • HD 660 S Open-Back Audiophile-Grade Hi-Fi Stereo Headphone (Black)
  • Cable with 1/4 " (6.35 mm) Plug
  • Cable with 0.17 " (4.4 mm) Pentaconn Plug-Balanced
  • 1/4 " to 1/8 " Adapter
  • Storage Box
  • Sennheiser 2 Year Limited Warranty

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
    • This matches a previous Frontpage deal from November 2021.
    • Our research indicates that Sennheiser HD 660 S Open-Back Audiophile Headphones is $91.95 lower (23.5% savings) than the next best available price from a reputable merchant with prices starting from $390.95 at the time of this posting. -StrawMan86
  • About this product:
    • 4.8 out of 5 stars rating at Amazon based on over 1,100 customer reviews
  • About this store:
    • View Adorama return policy here.

Original Post

Written by iconian | Staff

Community Voting

Deal Score
+57
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Top Comments

mrbkk
100 Posts
22 Reputation
Excellent price on these, it may be an all-time low. The 660s are a somewhat controversial model -- if you are considering buying, be sure to research them vs the 600 and 650/6xx. Some people love the 660s, others think they are a step back from the 600.
matt.bluesrobot
83 Posts
26 Reputation
Not everyone wants a full size receiver on their desk 🤷
RynoWeiss
39 Posts
10 Reputation
The are not high impedance headphones. You don't need to spend hundreds on an amp to get a decent one, but the headphone outs on most AV receivers are not good, because the output impedance is usually too high to use on medium or low-impedance headphones. You always want a damping ratio of 8-10+:1 for headphone impedance:output impedance, or else the frequency response of the headphone will be dramatically impacted. If you can find an AV receiver with a listed output impedance and it's in the proper range then go for it, but if that spec isn't listed, do not trust it.

106 Comments

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Mar 26, 2022 09:16 AM
100 Posts
Joined Apr 2015
mrbkkMar 26, 2022 09:16 AM
100 Posts

Our community has rated this post as helpful. If you agree, why not thank mrbkk

Excellent price on these, it may be an all-time low. The 660s are a somewhat controversial model -- if you are considering buying, be sure to research them vs the 600 and 650/6xx. Some people love the 660s, others think they are a step back from the 600.
1
Mar 26, 2022 09:19 AM
212 Posts
Joined May 2014
ThatSDLifeMar 26, 2022 09:19 AM
212 Posts
Quote from mrbkk :
Excellent price on these, it may be an all-time low. The 660s are a somewhat controversial model -- if you are considering buying, be sure to research them vs the 600 and 650/6xx. Some people love the 660s, others think they are a step back from the 600.
I have 6xx you think these would be a good side grade or sundara?
Mar 26, 2022 10:17 AM
1,465 Posts
Joined Feb 2008
vd853Mar 26, 2022 10:17 AM
1,465 Posts
Do I need amps for this?
Mar 26, 2022 11:44 AM
47 Posts
Joined Aug 2019
GemutlichkeitMar 26, 2022 11:44 AM
47 Posts

Our community has rated this post as helpful. If you agree, why not thank Gemutlichkeit

deleted.
Last edited by Gemutlichkeit April 1, 2022 at 05:44 PM.
3
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Mar 26, 2022 11:45 AM
100 Posts
Joined Apr 2015
mrbkkMar 26, 2022 11:45 AM
100 Posts
Quote from pinstripe07 :
I have 6xx you think these would be a good side grade or sundara?
I would probably go for the sundara just to have some more variety, the 6xx and 660s are still reasonably similar.
Mar 26, 2022 12:50 PM
9,241 Posts
Joined Jul 2006
NattefrostMar 26, 2022 12:50 PM
9,241 Posts
I have the HD 599 is this a big upgrade? Also what's the difference between HD 600 650 and this? Also are they good for metal?
Last edited by Nattefrost March 26, 2022 at 06:30 AM.
Mar 26, 2022 01:50 PM
284 Posts
Joined Oct 2004
sherretzMar 26, 2022 01:50 PM
284 Posts
Quote from Gemutlichkeit :
If you want high quality audio, yes, absolutely. The good news is that they are very efficient so $100 Shiit Magni or JDL Atom amp will be more than enough.

Otherwise just get Sennheiser HD 559 for $80. They are about the best you can get without needing a headphone amp, but even they will sound better with a headphone amp.
I've used both a Fiio E10K and a Schiit stack for my 6XX. Both sound the same to me and the E10K is nearly half the price.

That said, I recommend an amp for these, if only for the better/proper experience.

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Mar 26, 2022 03:32 PM
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sxw88
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Mar 26, 2022 03:32 PM
3,274 Posts
I like how they come with 4.4mm balanced cables. Tempting.
Mar 26, 2022 03:35 PM
47 Posts
Joined Aug 2019
GemutlichkeitMar 26, 2022 03:35 PM
47 Posts
Quote from sherretz :
I've used both a Fiio E10K and a Schiit stack for my 6XX. Both sound the same to me and the E10K is nearly half the price.

That said, I recommend an amp for these, if only for the better/proper experience.
Ah, you are comparing it to the stack. I am not sure a dedicated DAC is necessary these days unless you want to convert bluetooth which is why I would recommend just getting a quality amp to start with.
Last edited by Gemutlichkeit March 26, 2022 at 08:38 AM.
1
Mar 26, 2022 06:25 PM
2,682 Posts
Joined Jan 2010
evilaMar 26, 2022 06:25 PM
2,682 Posts
im gonna pull the trigger this time , before our dollar is worth nothing!
2
8
Mar 26, 2022 06:31 PM
197 Posts
Joined Nov 2019
jazzpianistMar 26, 2022 06:31 PM
197 Posts
Thanks for posting this deal! I have been looking for some high quality headphones and I know these are great. Much appreciated
Mar 26, 2022 06:36 PM
197 Posts
Joined Oct 2017
huehueMar 26, 2022 06:36 PM
197 Posts
Awesome price. How are these for mixing and mastering work vs the HD650? Those are the ones I currently have.
Mar 26, 2022 06:40 PM
405 Posts
Joined Nov 2016

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Mar 26, 2022 06:46 PM
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Scintillation
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Mar 26, 2022 06:46 PM
2,853 Posts
Quote from Nattefrost :
I have the HD 599 is this a big upgrade? Also what's the difference between HD 600 650 and this? Also are they good for metal?
Yes 660-599 = 61
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Mar 26, 2022 06:47 PM
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Scintillation
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Mar 26, 2022 06:47 PM
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Double Post
Last edited by Scintillation March 26, 2022 at 11:49 AM.
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