Originally Posted by lazerboyz
if what you said's true, that'd be awesome (:
It's true to a point, there are a number of factors to weigh in, such as amplifier gain and amplifier input sensitivity and source output levels. It's the HE-6 that will need more power at 83.5dB/mW. On the LCD-2, if you need to hit high dynamic peaks, you will need no more than 1W to reach 120dB. To reach 110dB, you need 80mW.
Some basic high school physics is all you need to figure this stuff out. Since planars hold their resistance steady over frequency, it's less guess-work based off nominal impedance measurements.
Originally Posted by El_Doug
the problem, I believe, is that youre buying into the B.S. marketing of companies such as schiit who have people convinced that planar headphones somehow need more power
I don't think it's the manufacturers that are doing it, but rather the "more power" people. The ones that say you need "more power" to "drive" something like the HD650, when they have no technical quantification or qualification of what it is. As such everything gets lumped into "more power". Manufacturers, rightly so, would tap into this dogma.