That matches what I hear pretty well.  They're actually one of the only closed headphones I've ever liked.  I like them better than the Denons and people on HF have always thought I was bat crazy for that.  I don't think they're amazing, they seem to have a bit of a U shaped response and aren't the last word in resolution, but they sound really smooth to me. 

I just heard the LE version and was really impressed. Much better than my old m50. I am buying a pair for sure. Anyone with an LE version here that can say if it is better than the standard m50 or is this the improvement that was made over time with these cans?

The measurement I took of my (old type) ATH-M50 superimposed on Purrin's plot



Hearing these I could not understand why so many people liked them and thought they sounded pretty 'flat' and accurate as this very old version is nothing like that.
It sounds the way the plot shows.
Humongous (fat) bass with an 'overly warm' signature with the upper mids (clarity) lacking a bit.

The later models have changed quite a bit from the 'old' version.

Earlier I made an attempt to combine plots of different sites to see if they measured similar

the green and thin blue line show a +5dB in the lows compared to other Tyll's plot

How many versions of the M50 are there now?

When Forrest Gump compares life with a box of chocolates it sounds like a nice story. When it applies to the ATH M50 I lose my interest...

Did you open up your M50?