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LCD3 Measurements - Page 11

post #151 of 236
Thread Starter 

Finally got another LCD3 in. Here are the uncompensated FR measurements. CSDs on the way. Left and right channels.

 

My pair is green/red.

New pair is black.

 

I measured the new pair twice at different sessions. Will make those available upon request. I forgot the gate the second measurement so the bass is a little bit jaggy.

 

LCD3 compare L.gif

 

LCD3 compare R.gif


Edited by purrin - 2/15/12 at 3:42pm
post #152 of 236
Thread Starter 

Waterfall plots.

 

Left channel comparison (my pair on left, other sample on right)

lcd3 l.txt.jpg LCD3n2 L.txt.jpg

 

Right channel comparison (my pair on left, other sample on right)

lcd3 r.txt.jpg LCD3n2 R.txt.jpg

post #153 of 236
The new pair seem to have more bass roll off and a nice boost in the 3k range. On the waterfall though, it seems it has more?.... ringing? at 3k?
post #154 of 236

@purrin - how do they sound compared to yours? Different?

post #155 of 236
Thread Starter 

The thing I don't like most on my pair is the excessive low bass - just too thick sounding. This sample I just obtained has a better bass presentation more similar to the r2. Note that after the TP mods, the bass on my LCD3 is similar to this sample. The sample is more of a mid-centric headphone and reminds me a little bit more of the LCD3 of that I heard at the mini-meet. That 3-4k ringing is noticeable, but it's in a region where resonances tend to be benign (e.g., ringing at 8kHz is horrible, 4-5kHz not so much.)

 

Resonances are always a bad thing, on the other hand, the little midrange bump on the sample is desirable and one factor (the other the bass response) that makes it sound less veiled than my pair.

 

Keep in mind the FR graphs above are uncompensated (the headphones have more bass than they measure), and note the graph axis ranges on the CSDs.


Edited by purrin - 2/15/12 at 5:29pm
post #156 of 236

eek.gif

post #157 of 236
Thread Starter 
Quote:
Originally Posted by rhythmdevils View Post

eek.gif


H-O-S (inside joke)

 

post #158 of 236

dwight_crying.jpg

post #159 of 236

post #160 of 236

I guess that means we can eliminate Tyll's measurement gear as a variable, seeing that we now have two different samples measuring differently on two different measurement systems. 

post #161 of 236

So marv, you're basically saying that grado had it right all along? i.e those nice ridges in the mids are preferable to an overly dark signature?! That's shocking news to me ;).

 

 

Another thing: I can see the pads severely influencing the response below 100Hz ( as if  you had a better seal on your first pair, softer pads?). But this new 3kHz resonance?? 


Edited by arnaud - 2/15/12 at 7:44pm
post #162 of 236
Thread Starter 
Quote:
Originally Posted by arnaud View Post

So marv, you're basically saying that grado had it right all along? i.e those nice ridges in the mids are preferable to an overly dark signature?! That's shocking news to me ;).

 

 

Another thing: I can see the pads severely influencing the response below 100Hz ( as if  you had a better seal on your first pair, softer pads?). But this new 3kHz resonance?? 

 

They would if the measurements were on the solid plate (for a seal). These were not sealed measurements.
 

I do actually like a bump there, but without the ringing. Examples would be R10 and V-moda M-80.

 


Edited by purrin - 2/15/12 at 8:19pm
post #163 of 236

Say Marv, would you do me a favor and measure them a few times once a day to see if they change day-to-day.

 

(HD 800 mods post coming soon! :)  )

post #164 of 236
Thread Starter 

ROFL biggrin.gif I know where this is coming from. 

 

I actually do use my HD800s as a baseline for calibration on average once a week. I don't bother saving the data because it looks "close enough." It's more ad-hoc rather than a formalized operating procedure. It's definitely not scientific. Sure there are measurement errors, but they are limited to small isolated parts of the spectrum, not entire swathes across the frequency band. I'll be posting a third measurement of my LCD3s soon. But I'm sure it won't be enough and there will be reason for a fourth, and a fifth, etc. As you know, ambient temperature also plays a significant role in the measurements, so I may as well record those. As well as the alignment of the sun and the moon.

 

Yes, it's shades of grey. But it's sure looking more one color than the other. My ears already had their say anyways.

 

In any event, as someone who pm'd me said, "What the heck is up with that ringing on the 2nd pair?"


Edited by purrin - 2/16/12 at 6:12pm
post #165 of 236
Quote:
Originally Posted by purrin View Post

As you know, ambient temperature also plays a significant role in the measurements, so I may as well record those. As well as the alignment of the sun and the moon.


New thread idea, "Climate control solutions for LCD-3".  I wonder what a Trane does for the treble....

 

wink_face.gif

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