Audeze LCD-4
Feb 6, 2016 at 6:35 PM Post #2,314 of 11,994
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I actually spoke with I believe was the Mark Cohen from Audeze when I was asking about the LCD-XC's and 4's and The King and he was the one that said that the LCD-4's now have the impedance of 200 ohms. I have spoke to him twice so far and I'm and for sure he said they have been updated 
 
Feb 7, 2016 at 1:19 PM Post #2,316 of 11,994
I haven't found a buyer for my LCD3Fs for some reason and so I've been comparing my just arrived LCD4s.
Without getting into much details I am not getting bowled over by the LCD4s at the moment.
I think I think in my case it will take a few months to understand and appreciate the differences (maybe). Unlike a lot of you here my ears aren't as "trained" or whatever the expression might be.
Unlike the differences say from my HD800 and PS1000 and the LCD3/4 where the differences are obvious, here the differences are very subtle in most cases to my ears.
Maybe my expectations were just too high and unrealistic.
 
Though I am wondering if my excellent Bryston BHA1 might be holding them back and wanted to ask why the LCD4s seem to be so harder to drive then my LCD3F.
 
Now my LCD3F did start as LCD3C and were updated to an LCD3F last year summer after a driver failure. Is there a difference in impedance between an upgraded LCD3F and the 4s.
 
Starting at 6 I never really go above 9 with the LCD3F on the Bryston. With the LCD4 depending on the recording, I am anywhere between 11 and 3.
 
-- Sanjay 
 
Feb 7, 2016 at 2:31 PM Post #2,318 of 11,994
Thanks, this is news at least to me.  They must have redesigned the drivers.  200 ohms is way different than where the LCD-4 started out...wasn't it around 45 ohms?
And regarding the BHA-1, with my LCD-X, I never go above about 8:00 on the power dial.  For my HD800 at 300 ohms, never past 9:00.  That amp has plenty of power.
 
Feb 7, 2016 at 10:28 PM Post #2,323 of 11,994
   
Then they should also update the sensivity, else, it means the sensivity went down by a half.

I think you're mixing up impedance with sensitivity. Just (IF) the impedance went up to 200 ohms...that says nothing about sensitivity.
 
Feb 8, 2016 at 2:09 PM Post #2,324 of 11,994
Most, if not all amps, have more power on tap at 100 ohms vs 200 Ohms. Meaning less headroom on 200 Ohms, if everything else is kept equal. 

 
Feb 8, 2016 at 7:02 PM Post #2,325 of 11,994
Yea, I agree the move from 100 to 200 ohms shouldn't affect the SQ, and will probably be a more robust planar driver design.  It may slightly affect which amps work best with the HP's.  
 

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