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Author Topic: Beyer DT1350 Measurements x6 Unit-to-Unit Variability Measurements  (Read 9395 times)

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rhythmdevils

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Re: Beyer DT1350 Measurements x6 Unit-to-Unit Variability Measurements
« Reply #10 on: August 29, 2012, 08:53:59 PM »

Something interesting about these is that while unit to unit variation is extreme, each unit's drivers (L and R) are generally matched to that unit's FR.  For example, both drivers in pair #6 have the same severe dip at 15hz.  And both driers in pair #3 have a severe dip at 175hz and another at 7k, with the same wild peak characteristics.  That seems like considerable evidence that Beyer knows how much variation there is between units, because they are measuring drivers well enough to match them between units that have wildly different FR's.  Unless their system is completely automated, but it seems like someone must be there supervising that process.  This has to be some of the craziest driver matching ever. 

it's worth noting that the pair with the worst most wonkiest FR, has the best driver matching.  It's pretty funny if you think about it. 

You could call this something like micro-QC, macro-FAIL.
« Last Edit: August 29, 2012, 08:59:06 PM by rhythmdevils »
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grev

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Re: Beyer DT1350 Measurements x6 Unit-to-Unit Variability Measurements
« Reply #11 on: August 30, 2012, 02:39:16 AM »

^ Haha, it's "Systematic Chaos", like the Dream Theater album.
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chi2

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Re: Beyer DT1350 Measurements x6 Unit-to-Unit Variability Measurements
« Reply #12 on: September 07, 2012, 12:30:36 PM »

Pretty strange indeed. Wouldn't such a parellelism suggest that the source of variation may be somewhere else rather than with the drivers? Pads for instance, or damping - if there is any in case of the DT1350. (With the T1 there isn't). Can't imagine that BD would take the effort of closely matching off spec drivers.

(BTW: Hi there, what a great place! Thanks, purrin, for all the effort of measuring those phones and to all of you for providing your knowledge & experiences!)
« Last Edit: September 07, 2012, 12:43:48 PM by chi2 »
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wilzc

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Re: Beyer DT1350 Measurements x6 Unit-to-Unit Variability Measurements
« Reply #13 on: September 18, 2012, 06:54:08 AM »

Holy cow??

WTF is going on here?

I guess that explains it. My first two sessions with the DT1350, I was convinced. This is the best thing to have happened to portable headphones!!

Then further meets and auditions after and I felt these had a strange....  hollow..  cave-like presentation. Still great sounding for a small portable. But strange.....
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Solderdude

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Re: Beyer DT1350 Measurements x6 Unit-to-Unit Variability Measurements
« Reply #14 on: October 09, 2012, 05:40:29 PM »

My choclat (ser# 10356) tastes a bit like the first one out the box but with better matched drivers (educated guess)
I use it with HD25 pads for much improved comfort, it appearss to tone down that 300Hz part slightly but still use it with a slight (alas digital) EQ centered around 300Hz (-2 dB)

Mine had the name plate falling off so used a bigger patch of double sided sticky tape. :)p2

It's my 2nd best HP and to me is the best sounding portable I own(ed).
I really like it.
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Use your ears to enjoy music, not as an analyser.

Solderdude

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Re: Beyer DT1350 Measurements x6 Unit-to-Unit Variability Measurements
« Reply #15 on: June 11, 2014, 07:21:04 PM »

I had ordered the new pads Beyer makes for the newer versions (DT1350-facelift and DT1350CC).
These newer phones have larger diameter pads, 67mm vs 61mm and are softer and create a better seal which is a major pain with the T50P and DT1350.
Beyer also has (fake) Nubuck Leather pads (62mm diameter) that are less sweaty, a bit velour like so to speak.

Beyer claims they do not change the sound so thought I would put it to the test as I could not find any comparative plots anywhere.
They may not be accurate in an absolute sense (though not far off) but do show the differences between the pads.



I have some more detailed info on my website.
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Skyline

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Re: Beyer DT1350 Measurements x6 Unit-to-Unit Variability Measurements
« Reply #16 on: June 12, 2014, 12:49:28 AM »

Thanks for this!  I've always wondered if new pads would be worth it.

Subjectively, which do you prefer?
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Armaegis

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Re: Beyer DT1350 Measurements x6 Unit-to-Unit Variability Measurements
« Reply #17 on: June 12, 2014, 01:41:33 AM »

So the stock pads still have the highest bass response and the least treble?
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Do you think there may be an acoustic leak from the jack hole? ~Tyll Hertsens

Not sure if I like stuffing one hole or both holes. Tending toward one hole since both holes seems kinda ghey ~Purrin

Solderdude

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Re: Beyer DT1350 Measurements x6 Unit-to-Unit Variability Measurements
« Reply #18 on: June 12, 2014, 05:12:35 AM »

In my case they did.

To make sure it wasn't a seal or other problem I remeasured everything twice and also applied a bit more pressure and used 2 different setups but the original pads always showed a few dB moar bassss.

It sounds a bit 'wonkier' in the mids (a bit more hollow) with all of these pads BUT those that weren't able to get a good seal with the original pads may find it sounds better with the 67mm pads because it is MUCH easier to get a seal and a bit more comfortable as well.

Personally I keep using the HD25 pads BUT use it with EQ (to get rid of the honky mids and bring back bass)
I never cared much for the original pads.
The 67mm are comfortable but not as comfy as the HD25 pads.

The NL pads (faux Nubuck Leather) are less 'sweaty' than the pleather pads but rest on the inside of the Pinnae where the 67mm (and HD25) cover my whole pinnae.
The pleather are ever so slightly less 'peaky' sounding in the treble... hardly worth mentioning though.
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