Sennheiser HD650 & Massdrop HD6XX Impressions Thread
Dec 1, 2020 at 12:44 PM Post #43,832 of 46,554
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Dec 1, 2020 at 12:50 PM Post #43,833 of 46,554
We can find excellent amps single ended, and excellent amps balanced. From that simple observation we can conclude that a balanced plug does not single-handedly determine excellence or mediocrity in amps.
People, go get whatever amp you want. personally, I try to stick to the same type of plug I already have. It has nothing to do with oversimplified(often false) belief about what makes an amp good, and everything to do with not wanting to bother with yet another type of plug or adapters for my cables. I'm basic like that.

Right now I only am balanced on my recording rigs because it's that or having a 10cm cable for my mics to keep noises down. I like standardization and when I'm general of the world, if you don't make my kind of plug, straight to jail. You try to bring up yet another shape for USB plug? Straight to jail! you under cook fish, believe it or not, jail. You know what, scratch that. I 'll pass a law so that all plugs must be banana plugs, like the flying spaghetti monster intended. IEM users are going to love that.



On a side note, I'm starting to get worried about my ears not fitting in the HD650 anymore. As I get older and they grow longer(or lose shape?IDK), I feel like I have little vertical room left inside the pads. If that increases by up to 2mm a year like I read somewhere, I'm going to be screwed real fast. :crying_cat_face:

No worries about growing ears. When it happens, just upgrade to the ZMF Auteur. Those earpads are huge and comfortable.
 
Dec 9, 2020 at 2:24 AM Post #43,834 of 46,554
On a side note, I'm starting to get worried about my ears not fitting in the HD650 anymore. As I get older and they grow longer(or lose shape?IDK), I feel like I have little vertical room left inside the pads. If that increases by up to 2mm a year like I read somewhere, I'm going to be screwed real fast. :crying_cat_face:
Just to mention, headphones like the HD 560S, HD 599, and HD 559 have a larger (and more vertical room) ear pad opening than the HD 650. But hopefully your ears fit the HD 650 for years! Maybe the size of the headphone will help provide support and resist stretching? :wink:
 
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Dec 9, 2020 at 3:00 AM Post #43,835 of 46,554
No worries about growing ears. When it happens, just upgrade to the ZMF Auteur. Those earpads are huge and comfortable.
Sorry for the late answer, I seem to have checked several posts and then forgot to answer to them.
Sadly I'm very partial to lightweight headphones. I honestly enjoyed the sound(or fancy features) of several other headphones over the years, some I clearly preferred to the HD650 when it strictly comes to sound. But they were all in the 400 to 500+gr range and my neck said no to long periods of use at my desk. Which for now is a deal killer.

I complain a lot. I think I kind of got spoiled with the HD650. It did many things I liked for such a fair price, that really biased the way I look at other other headphones.
 
Dec 12, 2020 at 10:28 PM Post #43,838 of 46,554
Rtings finally measure the 6XX and looks different from HD650. I'm wondering if it's unit variations? What's also interesting is that the bass distortions isn't as significant as Innerfidelity's.

https://www.rtings.com/headphones/reviews/sennheiser/hd-6xx
Not stirring the pot but I've seen this site and have wondered how reliable or accurate their results are. Looked more like a marketing site but I may be wrong...looking for other opinions.
 
Dec 13, 2020 at 12:50 AM Post #43,839 of 46,554
Not stirring the pot but I've seen this site and have wondered how reliable or accurate their results are. Looked more like a marketing site but I may be wrong...looking for other opinions.
Their measurements should be pretty accurate. They used to get sponsored by Amazon and Bose in the past, but these days, they started providing subscription access to their reviews for profit. All this stuff doesn't effect their measurments.
 
Dec 13, 2020 at 1:58 AM Post #43,840 of 46,554
Not stirring the pot but I've seen this site and have wondered how reliable or accurate their results are. Looked more like a marketing site but I may be wrong...looking for other opinions.
They seem to be using something from HMS - something like this: https://www.head-acoustics.com/eng/telecom_hms_II_basics.htm. As to whether or not it's included in the industry standardized measuring equipment list, I can't say, but I would suppose so. I just don't know if there are notable factors such as peaks/dips due to the setup that we should be aware of, similar to limitations posed by a MiniDSP rig (which iirc has a dip somewhere in the 5kHz - 9kHz region that shouldn't be there, but can't recall which article I found that on headphones.com).

How I figured their measuring equipment was is based from their article found here
 
Dec 13, 2020 at 8:47 AM Post #43,841 of 46,554
They seem to be using something from HMS - something like this: https://www.head-acoustics.com/eng/telecom_hms_II_basics.htm. As to whether or not it's included in the industry standardized measuring equipment list, I can't say, but I would suppose so. I just don't know if there are notable factors such as peaks/dips due to the setup that we should be aware of, similar to limitations posed by a MiniDSP rig (which iirc has a dip somewhere in the 5kHz - 9kHz region that shouldn't be there, but can't recall which article I found that on headphones.com).

How I figured their measuring equipment was is based from their article found here
Same HATS innerfidelity used. It's industry standard, just a different brand than the HATS Jude uses.

Important thing is, when doing comparisions, you only compare measurements conducted from the same rig. So, compare with HD650 measurements from Rtings, and others like 660S. I see similarities to 660S, but 660S has more dramatic dip.
 
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Dec 13, 2020 at 10:19 AM Post #43,842 of 46,554
The difference between 650 and 6xx on Rtings may be attributed to new and old(er) pads. Also, I see from the photos that tests were conducted with different heads and/or rigs so that could have made a difference too.

IME, the difference between old and fresh, much stiffer pads can be quite noticeable. My 650s with new pads do not sound veiled or dull in the treble area.
 
Dec 13, 2020 at 12:22 PM Post #43,843 of 46,554
Same HATS innerfidelity used. It's industry standard, just a different brand than the HATS Jude uses.
Based on what I found, Jude uses a GRAS rig, not a Head Acoustics one like rtings.com. That's one variation in measurements already. Tyll I believe uses head acoustics as well, but I'll have to dig through his old posts to confirm.

On a personal note, some of Jude's measurements I find are not in-line with what I hear compared to say Crinacle's or oratory's despite having similar equipment. I suspect it comes down to number of tests, positioning accuracy and average variation.

The difference between 650 and 6xx on Rtings may be attributed to new and old(er) pads. Also, I see from the photos that tests were conducted with different heads and/or rigs so that could have made a difference too.

IME, the difference between old and fresh, much stiffer pads can be quite noticeable. My 650s with new pads do not sound veiled or dull in the treble area.
That is possible. What rtings mentions in their website though is that they buy their gear from the likes of Amazon or other retailers, so it would be assumed that they're buying them new with fresh pads. That being said, there's a minor difference in the presence region but overall they look acoustically similar. Pad age and shape could be a factor on their measurements for sure, as well as the difference in equipment from when the HD6XX was measured to when the HD650 was measured.
 

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