Interesting, I just noticed the LCD-2 & LCD-3 are now rated as listed here on Audeze's website:
•Efficiency: 94dB SPL / 1mW
Am I mistaken, or were they previously rated at 91dB SPL / 1mW ?
Does this have something to do with the Fazor's making them easier to drive? If so, I guess they are closer to the LCD-X now in ability to be driven more efficiently by portable headphone amps.
Guys, the fazors are just marketing speak for those metal slits that as assume help direct the sound waves coming out of transducers. It shouldn't so anything to the efficiency etc. my guess is that fazors just helping control reflections in ear cup and hopefully making the sound better. There is no magic. If stats have changed then audeze is doing something to transducers etc.