just tried the removed outer padding mod, I always hate comparing mods that take 15 minutes to do but yeah I can feel the sub bass is less rolled off, feels more open, maybe too open, it becomes more airy like the Sundara and loses it's weight... it's not bad I enjoyed it but I feel like it lost something else I also liked.... Still not the level of transparency the Sundara gets but it's basically a better Sundara with a extra nudge of Bass and oodles of Detail and Resolution on tap and a wider soundstage (better imaging as well) I can see liking it both ways honestly if I could have the extra sub bass and the weight it had with the outerpadding that would be my choice but I prioritize that extra Sub bass so I guess if I had to choose between this and the LCD-2 Fazor I might prefer that OR this I think the M1570 is close to the amount of bass I want in mid bass and lower mids but needs a slight mid-bass bump and a decent subbass bump. If I ever get around to the LCD-2 fazor I will see if I prefer that or maybe it's too much but I certainly think buying it is out of the questions....
The headphones are not endgame per-se but at the price of $300(OB) to $400 with discount and coupon they make you OK with not having endgame headphones.... I mean you have to look at the future and if more headphones that are this good value come out I daresay within the next 5 years a good number of even $2000 sets will have stiff competition in the around $500 price. I think the M1570 at the current price is the best under $500 I have heard among mine and a handful of others touted as contenders.
Just read this comment "These things sound phenomenal. However, they do require a burn in period. Out of the box, there was no bass. But after a day or two, it audibly sounded much better. I ran pink noise through it." will comment if I feel the same