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Author Topic: The under-engineered $1,200 headphone  (Read 9407 times)

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rhythmdevils

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The under-engineered $1,200 headphone
« on: February 24, 2012, 11:35:27 PM »

The Beyerdynamic T1 is a great example of what is wrong with the headphone industry.  You go to their website and you see pictures like this along with a bunch of hype about engineering and perfection and fidelity. 




But open a pair up in your home and this is what you see




It's a fancy, or at least fancy-looking driver thrown into an empty plastic cup with no damping whatsoever.  There is no way that could be ideal acoustically.  Maybe if it was a completely open back headphone, but this is a mostly closed cup.  Vents cut down on resonance but it's not enough.  It comes down to Beyer either being lazy or cheap with their TOTL 1,200 dollar headphone.  I'm not talking about some exotic damping materials that would drive the cost up.  I'm talking about materials that cost pennies.  It's Beyer taking time to make a finished product and not just throw cool looking stuff together. 

You would never see this kind of design or engineering from a well known respected speaker company making a product at the 1k price point.  I just got a pair of Mackie HR624 powered monitors, and can't find any internal photographs except for this simple schematic, but for about the same cost (or less) of a Beyerdynamic T1 you get 2 bookshelf speakers with 2 drivers each, one 5x bigger than the T1's (ie a heckof a lot more magnets, which is the T1's claim to fame), in a precisely tuned enclosure with a passive radiator in the back and two amplifiers per speaker.  That's not only a lot more hardware for the money, it's also a lot more engineering.  The Mackie is a fully engineered, precision made product that has dealt with the acoustic challenges of it's goals and design.  So let's lay it out here

Beyer T1
2 drivers
cool looking, but under-engineered plastic and metal enclosure (designed by Beyer decades ago...)
velour earpads

Mackie HR624 Monitor
2 tweeters
2 woofers
precisely designed and tuned wooden, metal and plastic enclosure
damping materials
2 passive radiators
4 amplifiers

Not only that, but the HR624 performs substantially better than the T1 in every way except maybe lower bass extension, which it's not designed for so it's not a flaw.  The T1's response is full of resonance, ringing and uneven FR peaks along with very inconsistent driver matching between channels and units.  The HR624 has little to none and their consistency from unit to unit is good enough that they sell the speakers individually, not in pairs.  Imagine getting an L and R T1 individually and how far off they would be. 

Something is wrong with this.  We as consumers need to stop getting dooped by cool looking pictures and marketing and start demanding well engineered products.  There is no excuse for what Beyer has done with the T1.  And the same goes for almost all headphones on the market today by every manufacturer. 

The argument could be made that headphones are a more complicated acoustic environment to deal with.  But look what LFF and I have done with the T50rp, a 75 dollar headphone.  The Fostex T50rp is a planar magnetic headphone that is very similar to the Beyer T1 in that it has an empty, under-engineered plastic cup.  The difference is that the T50rp uses a better, more sophisticated driver than the T1, and costs 75 dollars (1,125 dollars less than the T1).   There is a lot of modification potential in the T50rp because if you finish the job the engineers left undone and make the cups more acoustically ideal, it can be turned into one of the best headphones on the market at any price.  Both LFF and I took the time to properly design and tune the acoustics of the cup.  It took a lot of time.  LFF has training in this field, but I have 0 audio training.  If that is possible with a 75 dollar headphone and materials pulled out of wive's drawers and bought at craft stores, then there is really no excuse for companies like Beyerdynamic, Denon, Audio Technica, etc who have huge amounts of engineering capability.  With effort, it is clearly possible to produce headphones that perform as true Hi-Fidelity audio devices, but sadly that is a word that applies to very few headphones on the market today at any price.   Because they don't take the time.

And yet we consumers just lap it up.  The headphone enthusiast community actually seems to be so used to glaring colorations that they have accepted it and even learned to love them, creating collections of headphones and choosing certain colorations for certain moods and genres like wines at a fine restaurant.  And we're in a constant state of what is nick named "upgraditis" because the reality is so far from our ideal that with each new headphone, we talk ourselves into believing in the perfection of a highly flawed reality and when our "new toy high" wears off, we come back to the reality of those glaring flaws.  Headphone companies release flawed headphone after flawed headphone and we just beg for more.  Shure is about to realease a new TOTL open back headphone that measures (and performs according to early reports) no better than anything we've had for decades and Head-fi is mostly full of excited buyers who can't wait to find out what color they will be.  It's just a new frame, and a new kind of coloration. 

We're like addicts, and the headphone industry is playing us for fools.

No more crappy headphones!!!!
« Last Edit: June 17, 2012, 04:00:55 AM by rhythmdevils »
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Marvey

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Re: The under-engineered 1,200 dollar headphone(s)
« Reply #1 on: February 24, 2012, 11:47:22 PM »

The plastic cup used on the T1 is audible with a close listen, especially in the bass. There's some uncontrolled cavernous sound thing going on with the T1 that didn't exist on older models such as the DT990. The T1 driver does look sexy though with all machined metal, how honestly I wonder how much better it is than the DT880/600 or DTXXX/600 drivers.

The DT880/660 sounds much better behaved too compared to the T1, all of which I've heard have a treble spike somewhere. This spike renders the overall more natural, less trebly balance (on the "good" T1s, it seems < 50% chance of that!) of the T1 meaningless.
« Last Edit: February 24, 2012, 11:49:25 PM by purrin »
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RexAeterna

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Re: The under-engineered 1,200 dollar headphone(s)
« Reply #2 on: February 25, 2012, 01:47:49 AM »

i read somewhere the T1 driver is just a beyer DT48A driver re-tuned cause i believe the T1 and the ''tesla'' line-up came from beyer's first dt48 driver with aluminum voice coil and machine pressed magnet. shame though if it was true cause the beyer DT48A for how old it is, has very good QC and almost near perfect driver matching on each set(that's why they still cost over 500 new and need to be specially ordered) while the T1 from what i been seeing has not the greatest QC in the world.

i do agree though it was dumb for beyer to provide no damping in the cups. it's dirt cheap for basic acoustic materials that can be bought locally or anywhere. if was a complete open design it could of work. even the beyer DT880 and DT990 has some type of dampening in their cups. i think beyer did a quick job on the T1 just to be in the ''game'' cause they know how popular and hyped new flagships were becoming.

has anyone though bother damping their T1 and see what type of difference it made? 
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CEE TEE

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Re: The under-engineered 1,200 headphone / state of the headphone industry
« Reply #3 on: February 25, 2012, 04:20:09 AM »

RD, you should be selling Mackies.   ;)


I am going to listen to my friend's HR824 again within the next couple of weeks.


Might be my first speakers.
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Marvey

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Re: The under-engineered 1,200 headphone / state of the headphone industry
« Reply #4 on: February 25, 2012, 04:32:44 AM »

OMG! What happened to your nice hair?
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Questhate

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Re: The under-engineered 1,200 headphone / state of the headphone industry
« Reply #5 on: February 25, 2012, 04:55:57 AM »

Shame. It's like putting a Ferrari engine in a Fiat chassis. Too bad they didn't stuff anything into their cups to give the impression that they at least considered the issue of acoustic resonance.

Headphone prices really have gotten out of hand. How many of these $1000+ headphones are truly a noticeable improvement over a mid-tiered headphones (Stax? HD800?)? Seems things are trending upward too with the LCD-3, HD700 and new Fostex. I hope more companies take Hifiman's lead with the HE-400 (although I haven't heard or read anything about it) and bring more tech at lower prices rather than just charging more because they can. I guess it's up to the market.
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rhythmdevils

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Re: The under-engineered 1,200 headphone / state of the headphone industry
« Reply #6 on: February 25, 2012, 05:07:44 AM »

Man, making this post was such a relief.  I want to thank Purrin for bringing the third axis of the FR graph to my attention and all the further understanding this has given me about headphones and sound in general.  I've really learned a lot this past year we've been chatting.  It has shed light on things I've been hearing and been frustrated by for a loooong time starting with car audio about 10 years ago (IME car audio has similar problems to headphones, or at least all the speakers I put in my car did).  You wouldnt believe how many car speakers I've gone though, just like headphones.   :'(

RD, you should be selling Mackies.   ;)

I have the 624's here now, you should come listen.  :-)  They sound pertty warm in this room though maybe it's the carpet.  My post wasn't meant to be about Mackie's specifically though, but just speakers, and Mackies are the ones I know best.  My parent's BW's sound just as good, but are more expensive so don't make as good a point.  ;-)
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Anaxilus.

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Re: The under-engineered 1,200 headphone / state of the headphone industry
« Reply #7 on: February 25, 2012, 09:59:03 AM »

More Karma points for you sir.


I can hypothesize as to why the T1 has crap acoustics.  It saves Beyer RnD costs when making the T2.  Improve the acoustic environment=new flaship w/ same driver and charge double.  Call it a new patent pending ventilation system (sounds familiar).


My guess if Beyer realizes this is shit which is why they didn't bother much w/ driver matching or QC.  What would be the point in that acoustic environment?  I think all the pieces are coming together now.


As for speakers, I can guarantee Uncle Erik is enjoying his right now.  Once I get my S7 and my Schiit Statement I'll likely be rolling DIY from here on out wrt speakers and amps.  This is all becoming stupid w/ LCD3, Apex Pinnacle, Cavalli LL prices.  I'm grabbing my S7 and Schiit and making a dash for the EXIT.
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khaos

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Re: The under-engineered 1,200 headphone / state of the headphone industry
« Reply #8 on: February 25, 2012, 02:00:40 PM »

Has something happened to UE, he's no longer posting on HF?
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Marvey

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Re: The under-engineered 1,200 headphone / state of the headphone industry
« Reply #9 on: February 25, 2012, 05:08:28 PM »

Has something happened to UE, he's no longer posting on HF?


Well I heard through the grapevine that the HD700 test subjects were being Jedi-mind-tricked into offering nice handy quotes for CES on behalf of Sennheiser Singapore. Supposedly UE disappeared around this time.
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