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New Audeze LCD3 - Page 440

post #6586 of 9536
Is the most current dampening material being used by Audeze still the foam material behind the pads and behind the grills, or have they changed it again?
post #6587 of 9536
Quote:
Originally Posted by GMF2010 View Post

Is the most current dampening material being used by Audeze still the foam material behind the pads and behind the grills, or have they changed it again?

 

It appears that things are somewhat settled for now with the LCD-3s. I am guessing that the first 3 digits of the serial number seem to refer to a revision, because for some months now they start 261 and all of these have the same material choices and drivers. They seem to be turning out much more consistently with only very very occasional driver failures (normal failure rate?).

 

It is in Audeze's interest not to keep tinkering and if it seems to be working out now, leave well alone. In fact I would encourage them not to release any new headphone models until they have had a good clear run of the current LCD-2s (r2 with bamboo/angled connectors), and 3s starting 261.

post #6588 of 9536

The S/N for my pair of LCD-3's starts with "231".

The date on the measurement graph shows April 2012 and appears to be very similar in response to many of the more recently released LCD-3's. (the drop starts at around 1.5kHz)

 

I believe Audeze started to make the nessesary corrections to the "veiled" LCD-3's back in March.

I placed my order mid-April through Woo-Audio, and had to wait nearly a month for it to arrive, so I'm quite confident my LCD-3 is not from the veiled batch.


Edited by Jamiee - 10/15/12 at 2:24pm
post #6589 of 9536

The current batch (all produced in August) all start with "261" - that does not mean issues weren't solved prior to that, but Audeze does tend to get the QC down a bit better with each batch (I've had from 3 separate ones)

post #6590 of 9536

My LCD-3 is RMA'd, measured August 27. Similar graph as on previous page, but a tiny bit hotter in the mids and a 2 dB hump @ 55 Hz(!). It has thin see-through cloth behind the pads (was foam pre RMA) and foam as dampening material (was felt pre RMA).

 

When I move my hands outside the earcups the sound changes, but not as much as it did pre RMA, I think. So I guess they increased the damping. Maybe inspired by the ToiletPants mod... beerchug.gif

post #6591 of 9536
post #6592 of 9536

Is there any truth to the idea suggested in this thread, that the diaphragm material could stretch, or lose its tension over time? If that were true, and I hope it isn't, you could damage the headphones simply by repeatedly pulling the headsphone off after the "suction" effect caused by the seal of the pads against the side of your head, or pressing both cups together and then pulling them apart! Despite how thin the material is, surely steps have been taken to ensure that even microns of stretch are not possible?

post #6593 of 9536

I wouldn't be concerned. 

post #6594 of 9536

This is silly.

Don't worry.

 

Quote:
Originally Posted by jonstatt View Post

Is there any truth to the idea suggested in this thread, that the diaphragm material could stretch, or lose its tension over time? If that were true, and I hope it isn't, you could damage the headphones simply by repeatedly pulling the headsphone off after the "suction" effect caused by the seal of the pads against the side of your head, or pressing both cups together and then pulling them apart! Despite how thin the material is, surely steps have been taken to ensure that even microns of stretch are not possible?

post #6595 of 9536
Quote:
Originally Posted by paulchiu View Post

This is silly.

Don't worry.

 

 

I apologise for making a silly post. It was mentioned a couple of times through the 400+ pages of this thread, and the LCD-3 is hardly a small investment! Thanks for putting my mind at rest.
post #6596 of 9536

New LCD-3 owner here.

 

Is there a definitive answer to whether there is a break-in period?

 

I'm listening to LCD-3s driven by a Leben CS-300 with a Naim DAC and the sound is harsh. I realize the LCD-3s are probably utterly transparent, but I thought I had tamed the digital harshness when I added the external Teddy XPS power supply for the Naim DAC.

post #6597 of 9536

Forgot to mention I'm also using the Q cable with it.

post #6598 of 9536
I've never heard harsh wrt the Leben or the LCD-3's. So your choice of the Naim DAC is a good guess.
post #6599 of 9536

When I got my RMA'd LCD-3 (measured late August) it took approx. 45 hours burn-in before I recognized the LCD-3 sound. Before then the sound was a little bit lifeless, boring, maybe also a little bit edgy, lacking some bass.

post #6600 of 9536
Quote:
Originally Posted by CanDude View Post

When I got my RMA'd LCD-3 (measured late August) it took approx. 45 hours burn-in before I recognized the LCD-3 sound. Before then the sound was a little bit lifeless, boring, maybe also a little bit edgy, lacking some bass.


 

There is a wide range of opinions on this. In one of the reviews of the LCD-3, apparently Audeze told the reviewer that these headphones didn't need burn-in because they had already had sufficient burn-in during manufacture. On this massive thread, someone reported benefits after 400 hours!

 

What I can say, is that I auditioned a demo pair with many many hours on them and then purchased my own new pair, and the characteristic of the sound at least was very similar. In the case of a conventional speaker cone, the burn-in partly relates to any resistance in the movement of the piston and cone such as the mounts. In the case of magentic planar technology, I do struggle to understand what could "burn in", as we mentioned previously, stretching of the diaphragm material is not desirable!

 

One thing I have also noticed is that RMA LCD-3s with serial numbers starting 231, come back with frequency plot graphs extending almost flat to 2kHz. The original 231s before RMA have plots only reaching 1kHz. Interestingly though, the very latest 261 LCD-3s have a graph inbetween reaching about 1.5kHz before starting to slide downwards. I have heard both a RMA'd 231 and a new 261, and when using it on my Clavinova digital piano, I found the 231 pair had what I believe to be ringing when you had many sustained notes around middle C that was a little distracting if you picked up on it....whereas the 261 did not have it. This may just be variance between unit to unit though and I didn't manage to find any SACDs in my collection that would trigger this same effect....needless to say though I am extremely happy with my own LCD-3s.

 

And just an FYI, the frequency plot on Audeze's own blog from 2011 shows the response dropping at 1kHz but not dropping anywhere near as much or as fast as production LCD-3s appeared to be in so-called veiled units. We will never know exactly what went wrong with some of those early units, or exactly what Audeze truly originally intended, and even whether the current LCD-3s are an absolute embodiment of the original sound design!


Edited by jonstatt - 10/19/12 at 2:49am
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