Recently got my LCD3 back from Audeze.
Took 3 weeks all up from Australia to USA, then back to Australia. Upon hooking it up to my rig, I immediately notice it sounded very different. The sound wasn't as veil or dark, better bass and treble extension (more detailed sound overall).
I thought to myself, left driver was faulty did they replace both drivers. So I sent Audeze support team an email.
I requested a detail list of what service was done to my headphone and an updated frequency chart.
Left drivers replaced, both connectors repaired because they where coming off, new conductors from the plugs to the driver and they sent me the same frequency chart.
After seeing the same FR chart, I thought nothing of it and just enjoy the music
(thinking I'm just getting old or my mind playing tricks on me).
Until yesterday, when I notice an outline of fine dust on the grills.
So I thought it would be a good idea to open the metal grills and clean out the filters.
To my surprise, ehh... these don't look like the LCD3 I originally bought. A quick check on the net confirm my initial thoughts on why the they sounded different when I got them back from repairs. The cheeky buggers at Audeze tech retro fitted the Fazor element on both side?
Not sure why they didn't disclosed this information. Not sure when they started rolling out the Fazor model, but my serial to my LCD3 is an early 2312177.