I only have about 10 hours on the HE6 so far, so way too early for me to say, but the results so far are very promising. It does 'feel' like a more even presentation, but I would not want to make that call without a lot more hours on both the LCD-X and HE6.
One thing I am certain about - the HE6 represents excellent value when driven well. It's 'bang for the buck' ratio is astounding. I'd say the same thing about the Taurus amp also.