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Author Topic: Beyer DT880-2003 Measurement  (Read 4985 times)

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TMRaven

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Re: Beyer DT880-2003
« Reply #10 on: September 16, 2013, 03:20:48 AM »
Those look way better!  First set looked like a set of Denon monstrosities.
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donunus

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Re: Beyer DT880-2003
« Reply #11 on: September 16, 2013, 07:24:42 AM »
wow, why did beyer change these for the worst? LOL Do people really like a bright sound over a more neutral one?
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Re: Beyer DT880-2003
« Reply #12 on: September 16, 2013, 08:40:53 AM »
Nice, this little nugget of gold was first introduced to me by a friend. He said the old 880's are way better than the new ones, which I passed it off as pure bullshit at the time (as I have now learned, the "old = better" mantra in the audio world is quite true for many things) but then I actually heard an old demo pair in his headphone shop and :  p:0.

He still uses that old pair as his demo unit while he sells new ones  ;).
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Thujone

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Re: Beyer DT880-2003
« Reply #13 on: September 16, 2013, 12:26:46 PM »
Quote from: purrin on September 15, 2013, 09:28:46 PM
Quote from: Thujone on September 15, 2013, 09:14:41 PM
Question: On the new measurements, is the THD with respect to the FR plot or can this Y-Axis be compared against the HD600/HE500/T50RP/etc.?

Yes, all the new plots should be directly comparable with each other.

What I meant was, do we read the values on the y-axis and compare them across the board or are the values arbitrary and the THD should be referenced with respect to the position of frequency response on the axis? I'm guessing that it's the latter. Otherwise, these bad boys have very low distortion compared to the other V2 headphone measurements. I apologize for the silly question, I'm just now getting familiar with distortion measurements in general  :)p14
« Last Edit: November 01, 2013, 11:50:46 AM by Thujone »
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Solderdude

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Re: Beyer DT880-2003
« Reply #14 on: September 16, 2013, 01:27:57 PM »
The question isn't silly at all.
The 0dB near the top of the plot is a bit misleading as it isn't a reference in this case.
Would have been handier if 0dB crossed at 1kHz.

To determine the distortion at a certain frequency you have to look at the distance (in dB) between the FR plot and the THD line.

So at 1kHz the D2 is -50dB = 0.3%.
If the 0dB were indeed 0dB for the THD we would be looking at -65dB = 0.05%

The DT880 is a nice headphone but found it lacking in bass extension and a bit boring on some music.
Sold it after a while, only the DT990 stayed as it is more fun.
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stv014

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Re: Beyer DT880-2003
« Reply #15 on: September 16, 2013, 01:49:56 PM »
0.05% at 1 kHz, and about 1% at 20-30 Hz would actually make more sense at 90 dB SPL @ 1 kHz. At least it would be more consistent with the InnerFidelity/HeadRoom measurements of the current version. It is also about what I measured with a DT880 Pro 250 Ω at -10 dBV. Using the FR graph as the reference, 10% THD at 20 Hz would be bad, and 0.3% at 1 kHz is not great either, but maybe the older version was worse in that particular aspect.

I guess the recessed upper midrange is the main reason why it sounds "boring".
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Thujone

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Re: Beyer DT880-2003
« Reply #16 on: September 16, 2013, 01:52:37 PM »
Quote from: Solderdude on September 16, 2013, 01:27:57 PM
To determine the distortion at a certain frequency you have to look at the distance (in dB) between the FR plot and the THD line.

So at 1kHz the D2 is -50dB = 0.3%.
If the 0dB were indeed 0dB for the THD we would be looking at -65dB = 0.05%

The DT880 is a nice headphone but found it lacking in bass extension and a bit boring on some music.
Sold it after a while, only the DT990 stayed as it is more fun.

Ok, sweet! Thank you for the reply, it seems I was on track after all.

I'm a fan of dark headphone signatures and I agree, these do not have a big fun factor. The only reason I have to keep them at this point is because of the rarity and because they respond well to EQ. Plus, I'm sure that purrin can attest to this, they are in phenomenal condition. The pads need to be replaced, but the headphones themselves are in great condition. The 2003 version also comes with an aluminum case which I haven't seen on the newer Beyers. All that said, these are a perfect candidate for selling. The HD580's will likely hold my vote overall anyway.
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Solderdude

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Re: Beyer DT880-2003
« Reply #17 on: September 16, 2013, 02:07:32 PM »
Quote from: stv014 on September 16, 2013, 01:49:56 PM
0.05% at 1 kHz, and about 1% at 20-30 Hz would actually make more sense at 90 dB SPL @ 1 kHz. At least it would be more consistent with the InnerFidelity/HeadRoom measurements of the current version. It is also about what I measured with a DT880 Pro 250 Ω at -10 dBV. Using the FR graph as the reference, 10% THD at 20 Hz would be bad, and 0.3% at 1 kHz is not great either, but maybe the older version was worse in that particular aspect.


The plots indicate D2 reaches -21.32 dB and this is the exact distance around 19Hz opposite the FR graph.
D3 reaches -24.79 and D4 -31.94 which is the distance at 10Hz to the FR plot

As these numbers correspond and are by far the highest values I think the harmonics are in relation to the FR trace and not 0dB

Tyll's plots of the newer DT880 indicate around 0.2% at 1kHz which will consist of D2 mainly and makes the measured 0.3% plausible.



I remember the DT880 sounded great on well recorded jazz and classical
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Marvey

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Re: Beyer DT880-2003
« Reply #18 on: September 16, 2013, 02:23:30 PM »
Yes, the harmonics are relative to the FR trace. They are not relative to 0db nor are they percentage values.
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Marvey

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Re: Beyer DT880-2003
« Reply #19 on: September 16, 2013, 02:25:38 PM »
Quote from: stv014 on September 16, 2013, 01:49:56 PM
0.05% at 1 kHz, and about 1% at 20-30 Hz would actually make more sense at 90 dB SPL @ 1 kHz. At least it would be more consistent with the InnerFidelity/HeadRoom measurements of the current version.


You sure about that? 0.05% is very very low and more typical of non-chip amps.
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