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Sennheiser Electronic corp. > 
Item#: 9SIA13X1AY5174

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
Sennheiser - Around Ear Headphones (HD 650)

Here's a perfect addition to your high-end home entertainment system. Hand-picked components, special acoustic materials and exceptional engineering make these headphones an audiophile's dream.


Sennheiser Sennheiser Sennheiser Sennheiser


Wearing style Headband
Color Titan
Frequency response (headphones) 10 - 41000 Hz
THD, total harmonic distortion < 0,05 %
Contact pressure ca. 2,5 N
Jack plug 6.3mm to 3.5 mm jack adapter
Cable length 3 meters/detachable
Transducer principle 3 meters/detachable
Weight w/o cable: 260 g
Nominal impedance 300 Ω
  • newegg Powerful Sound The top-of-the-range Sennheiser HD650 delivers open, dynamic hi-fi stereo sound for an immersive listening experience.
  • newegg Exceptional Comfort The Sennheiser HD650 features ergonomically-designed elliptical earcups that fit your ears cozily for exceptional wearing comfort even during extended listening periods.
  • newegg Jack Adapter With the gold-plated 6.3mm-to-3.5mm jack adapter, connect the Sennheiser HD650 to the 1/4" (6.3mm) phone jack on your high fidelity system or to the 1/8" (3.5mm) headphone jack on your TV set, VCR or other video devices.

Learn more about the Sennheiser Electronic corp. HD 650

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details

Customer Reviews of the Sennheiser Electronic corp. HD 650

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5 out of 5 eggsSuperior Headphones

Pros: Incredible range, open sound stage, got to wonder how great are the HD 800's

Cons: Must use a headphone amp. Have patience, need a long break in period.

Other Thoughts: I have owned these headphones since Aug. paired them with soundblaster X7 Limited edition & they sounded good, I thought the base was soft but overall sounded good. Then about a week ago they started to break in & the base is much better & overall sound is even stronger. Moral of the story is have patience, the base and overall sound will get better & better with time. Most high end speakers require a similar break in period.

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5 out of 5 eggsWow.

Pros: These are 300 ohm headphones so you need a headphone amplifier that is a given. Luckily, my MSI Gaming 6 has 2 headphone amplifiers built in and can handle 500 ohm headphones.
I had the Oppo PM3 planar magnetic headphones before this. They sounded pretty good except they were tiny on my head and I had to return them.
I wasn't expecting the Sennheiser HD 650s to sound so much better than the PM3s though. They sound more natural especially in the bass and, well just everything. The music feels more real and just sounds better. They are super light weight, something the Oppo PM3s were not, and the microfiber feels much better than the pleather of the PM3s. I am in the 1% of large heads I mean mines big and these fit well. I'm just so outright impressed with these headphones. Amazing. I bet the HD 800s sound crazy awesome. When I get my new job I will probably upgrade to the HD 800s.

Cons: These do feel a little fragile, so for $500, they should maybe have a little higher build quality, but I doubt I'll break them. Maybe that is why these are so awesomely light weight. Just be careful.

Other Thoughts: I got these on craigslist lightly used (I think he said like 40 hours of use or less) in the original package and original everything and in perfect condition for $250. Half off is a blast. If I didn't get this good of a deal I would have got the HD 598s. Boy am I glad I found these for the deal I got. I had the 555s, and wow, the 555s are dominated by this headphone in every aspect and I don't think the 598s are too much different 555s anwyways.

Make sure you have a good headphone amplifier for your computer that can handle 500 ohm loads just so you know you have enough power.

I'm just overwhelmed by how good these headphones sound. Just wow.

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  • Nicholas Y.
  • 5/4/2015 8:59:55 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsClear, flat, low distortion

Pros: The low distortion and very flat frequency response of these headphones allows them to reveal every small detail of a recording. They are sensitive, and relatively easy to drive, even though they are high-impedance headphones. The provided "Y' cable is fairy long.

Cons: The construction is pretty basic and not very "professional" appearing. The lower surface of the headband has exposed foam that does not appear to be very sturdy. The headphone mounting frames are plastic, and look and feel pretty fragile.
The cable ends that connect to each headphone are cheap molded plastic and can't be repaired if damaged.

I own headphones that cost half as much as these which have less exposed plastic and have leather covering the foam padding on the headband. Of course, they don't sound as good as the HD-650s

Other Thoughts: The value in these headphones is obviously the high quality. The construction does not inspire confidence. They appear to be fragile, and although I'll be using them in professional audio recording situations, I plan on being very careful handling these headphones. Hopefully, they will prove to be more reliable then they appear.

1 out of 1 people found this review helpful. Did you? Yes No

  • VISA .
  • 4/22/2015 8:48:13 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsWorth maybe $200

Pros: Open back.
Natural highs and mids, very clear and do not get washed out.
Comfortable and look nice.

Cons: The worst lows I've heard on headphones. I understand these aren't supposed to be super "bassy" or anything, but just about anything lower than 30hz is muffled and not clear. I would expect $500 headphones to have clean lows and mix in with everything, but the lows ruin the entire experience. These are the most expensive headphones I've bought, and somehow are also the worst I've bought.

Other Thoughts: I will be returning these headphones (hopefully) and going to look at Denon, AKG, or Audio Technica. These headphones were very unimpressive and I would only recommend these for someone who doesn't need lows... ever. (Anyone?).

1 out of 7 people found this review helpful. Did you? Yes No

  • Peter S.
  • 4/8/2015 7:42:47 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsTrue Musical - Magical Experience

Pros: Relatively low cost,

Cons: None so far

Other Thoughts: I could provide many reasons why I'm thrilled with the Sennheiser HD-650s but that would take too long. All I can say is they are MAGIC. Get yours at any price.

1 out of 2 people found this review helpful. Did you? Yes No

  • Janet A.
  • 4/7/2015 7:08:35 PM
  • Ownership: less than 1 day

5 out of 5 eggsAmazing Headphones

Pros: Amazing clarity and response from these cans! Sound stage is fantastic.

Cons: None

Other Thoughts: To the guy who said he bought *high end* Skullcandy headphones and prefers them. There is no such thing as a high end pair of Skullcandy headphones, and the fact that you think there is means you shouldn't buy headphones like these because you clearly can't appreciate them.

5 out of 5 people found this review helpful. Did you? Yes No

  • scott d.
  • 4/7/2015 11:20:53 AM
  • Ownership: more than 1 year

2 out of 5 eggsgood quality not very durable

Pros: nice sound
comfortable on head than most

Cons: the earpads falls apart after awhile, become dirty
they are not worth $300
you can buy decent headphones for $50 every couple of years and make out better than dropping all this cash on these
I think I paid $150 for mine like 6 years ago, would not do that again.
dont handle dropping well

Other Thoughts: I bought some high end skull candy at marshalls on clearance for $50, I prefer them over these

0 out of 19 people found this review helpful. Did you? Yes No

  • William P.
  • 2/25/2015 12:41:29 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsA Chameleon. Terrific with an amp and terrible without an amp

Pros: Well balanced frequency response. Light weight and comfortable. Good for all types of music. Some Hip Hop lovers may not like their near perfectly balanced bass, mids, and highs. To them I say, "Keep your Beats and come get these when you're ready to listen to everything else."

Cons: Require a good quality headphone amp. The plastic construction has the look and feel of 'cheap'. The sound is first class.

Other Thoughts: My first impression of these headphones was that they were devoid of life. (See previous review) Everything non-complimentary statement said in that review is hereby revoked. With the proper headphone amp, these 'phones are spectacular! These are among a handful of headphones I've heard in recent months that I would recommend to my friends. They have a very pleasing, slightly on the warm side of neutral sound with extended highs. Bass notes have good weight in proper ratio to the mids and highs. A near perfect balance to my taste. The antithesis of Beats whose bass bloat obscures the lower midrange and overpowers the upper frequencies.

For this price, I would have hoped for a velour lined storage box instead of the decidedly cheap foam lined cardboard box. I'm willing to accept the thin plastic construction in trade for lightweight and comfort. I fell asleep last night listening to Nora Jones' CD 'Come Away With Me'. Which says a lot about how truly comfortable they are.

If you already own a pair of these and you think they sound just OK or pretty good, you are probably not using a headphone amp. You owe it to yourself to audition a couple of amps to see just how much better these are when paired with the right amplifier. This is not some subtle 'audiophiles only' difference. On a scale of 1 to 10, an amp raises these from a 2 to an 8. It's like adding a supercharger to a V8.

4 out of 5 people found this review helpful. Did you? Yes No

  • William P.
  • 2/24/2015 2:01:02 PM
  • Ownership: less than 1 day
  • Verified Owner

2 out of 5 eggsFirst Impression

Pros: 3.5mm adapter that works with my DragonFly USB DAC

Cons: These look and feel much cheaper than the photos on the web. They are made of very thin plastic. My Oppo BDP 105 has a built-in headphone amp but I can't use it with these headphones. 80 db is about as loud as they go. Tried them with my DragonFly with similar results. Evidently these are useless without a headphone amp.

Other Thoughts: Used as described above, these sound lifeless. There is very little high frequency. What little there is rolls off steeply. Cymbals have no discernible decay. I was very disappointed listening to Ted Hawkins - The Next Hundred Years (Mobile Fidelity Gold CD). Hawkins has a distinct raspiness in his voice that is completely obscured by these headphones. The song 'Biloxi' opens with a steady rythem of rim shots. They may as well be handclaps, because these headphones have no ability reproduce the leading edge transient of the thock! followed by the faint echo of the drum body. Another Mobile Fidelity Gold remaster I listened to is Pink Floyd's 'Dark Side of The Moon'. This is one of my all-time favorites, and I am intimately familiar with it. The opening of 'Money' is accompanied by the sound of coins being thrown into a cash register. The metallic ring that was evident even in my 1974 Koss headphones are missing in action with these. The sax sounds equally flat and lifeless, its reverb all but gone.

I am extremely disappointed with these headphones. I read many reviews, here, and elsewhere that claimed these could be used without a headphone amp. I do not agree! I also must assume that few of these reviewers have ever listened to quality headphones. They sound marginally better than a pair of $125.00 noise cancelling JVCs.

I am faced with an agonizing decision: Sell them, or buy a headphone amp and hope the sound will improve greatly.

The user guide included with these says that the public's listening habits have changed over the years and these were designed to cater to the way we prefer to hear music. If that's true, music must be dead, because these sound flat and dull. Instruments do not sound at all like instruments. I, for the first time EVER, listened to Dark Side Of The Moon without tapping my foot or singing along with 'On the Run'. The total lack of anything above midrange frequencies just sucks the life out of everything I listened to.

0 out of 17 people found this review helpful. Did you? Yes No

  • Adam F.
  • 1/14/2015 6:08:31 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsVery impressive

Pros: I decided on buying these after reading the forums for months about which set to buy first. These sounded pretty common for first timers, and they were right. The quality is out of this world, velour earpads are so soft, cable is pretty long, with an 1/8" adapter if needed. I've binged a whole series on Netflix using these, gamed for hours on the pc, and listened to music for hours, and never felt uncomfortable.

I have these paired with the Asus Xonar Essence STX headphone amp on my pc, and they are just awesome for everything. I made sure to download the unified drivers for it, like the Asus forums say, and haven't had one problem.

Cons: Price

1 out of 2 people found this review helpful. Did you? Yes No

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