The HD650's do not sound quite as good to me on my 6s iPhone (same CD quality uncompressed music)--probably because of the 300 ohm resistance of the 650s, so a good amp does improve the quality of the sound to my ears.

And compared to the other models, during stereo playback the HD650 has a solid phantom center that is present (thanks to the constantly centered sine sweep), while the left and right channels are simultaneously heard separately just outside the pinna (instead of in the ear).

HD650 good headphone and comfortable

The HD650's mids demolish the HD598's in tone, realism, and richness

I find the HD650 to be very comfortable overall, and over extending the arms a little, to wear the HD650 slightly loose alleviates the clamp a bit

The HD650 is a relative bargain in today's headphone market

The HD650 is a like a high performance Plasma HDTV

There's a near negligible difference in the radiating point of a mono signal when I listened to angled (HD598) and straight (HD650) baffle design headphones.

I personally enjoy the Sennheiser HD650 more than the Beyerdynamic DT880

I got the hd650 after thoroughly enjoying my hd558 and hd598SE

otherwise the HD650 may sound bloated, veiled, non-energetic like the critics say

HD650's sound great with a light weight portable amp like a FiiO 11 or 17 (with too much power you will deafen others in the room - 650's are really open back!).

The HD650 is very source sensitive and they do sound their best when paired with good DAC/Amps fed with clean power supply and lossless FLACs

The Sennheiser HD650 is only available in 300 ohms version

That said, these HD650's are really quite nice.

The DT990 destroys the HD650 in both depth and width

The bottom line is that if your goal is to reproduce sound exactly as it was recorded, the HD650 is about as good as you can get at that at ANY price, marketing hype notwithstanding.

If you use a good CD player and a headphone amp, the sound quality would be more impressive!Anyway, enjoy outstanding HD650!!

Apparently the HD650 is great, but at the same time is "veiled", with a "dark sound signature"; it's also "hard to drive", "picky about amps, scaling with more expensive amps into the >$1000 territory".

Yes! if you are ready to pay 5 to 10 times the price of these fine headphones you will probably get something exraordinary, but the HD650 are so good that the distance from the perfection wanted, is so small.. and the deference of the price so big

really recommend HD650 to beginner hifi fans

I guess HD650 needs break-in period of over 100 hours

As far as Q701 and HD650's mids, the HD650 wins again

It's also finally worth mentioning that the HD650, since its distortion is so low, will reveal the relatively high distortion from tube amps.

If you like classical, jazz, acoustic or soul music, the HD650 is well worth the extra money

If you like classical, jazz, acoustic or soul music, the HD650 is well worth the extra money

Without that treble, I think the HD650 wouldn't sound as rich and 'creamy' as they do

I had bad experience with Sennheiser's HD555, which is over priced for the sound quality, so I was a little bit concerned with the higher end HD650

Apparently the HD650 is great, but at the same time is "veiled", with a "dark sound signature"; it's also "hard to drive", "picky about amps, scaling with more expensive amps into the >$1000 territory".

Initially, I was unsure whether it was really worth buying these expensive (unfortunately now even more expensive) headphones, since the HD650 has earned a special reputation on certain large forum sites on the Internet.

The HD650 is great but you must have a headphone amp

Proponents criticize the HD650 due to it being warmer, therefore suffering from a lack of clarity and detail

Why buy the inferior HD650 when the HD800 exists?

HD650 isn't better than HD598.

HD650 completely blows both Studio and Pro _combined_ out of water

The HD650 easily satisfies the criteria for true high-fidelity reproduction.

but HD650 are just doing wonders on ears

If you start reading into a site like Head-fi (which I love, don't get me wrong), you'll start to feel like the HD650 is a thing of the past

I find the HD650 to be very comfortable overall, and over extending the arms a little, to wear the HD650 slightly loose alleviates the clamp a bit

It's the legendary HD650 - my second pair after 6 years of trying numbers of IEMs, AMPs and DACs

The HD650's are quite a bit less bright which is very good

The HD650 and 600 are my favorite.

I use the HD650 almost a year now, and I love it.

I absolutely love the HD650 overall, and they have made me see the importance of mids, if even for just non-gaming, non-music use

In the price range of $400-500 you won't find many audiophile headphones that top the Sennheiser HD650.

The HD650 has no flaws here.

The HD650 clearly wins here

It gave a near perfect balance which HD650 was slightly lacking

The HD650 is a real winner here

The HD650 is described as the most colorful in the HD6 line but compared to most of the headphones I have used before, it comes off as pretty neutral and well balanced

I am a big fan of Grado and AKG 701, but HD650 is not disappointing at all

I used a $300 aftermarket cable and powered them with an $850 amp, however, the HD650 will sound superb through an entry-level amp and its stock cable

If you just wanted to listen to classical music then the HD700’s are amazing and better than the HD650 in my opinion but overall the HD650’s feel more versatile and more enjoyable for all types of music

If pure audio fidelity, and non-gaming purposes is your main purpose, the HD650 is incredibly hard to beat

Beats sure looks good, but pricing them in the same range as HD650 is a ridiculous rip-off

The HD650's have a bass boost and they are not as clear as the HD600's to me (I guess "veiled" is as good a description as any).

The HD650 is a stone cold bargain in headphones considering the sound it can deliver

After 15 years in hobby, the hd650 remains a classic and the best purchase I can make for those getting started with headphones

I think the HD650 is superior to the HD600 in that it has fuller bass than the HD600

Id hold out for another crazy B&H or Adorama deal on