I've been listening to the DJ100 all night with Pearstone pads. As mentioned earlier, they make the DJ100 much warmer. It's almost so warm that it's at the point of being annoying. It does make everything smoother sounding.
Despite this I really liked the sound but which the warmth was reduced a little. Bass seemed a tad emphasized in some music.
I was trying to figure out why the M50 pads were not as bassy and so crystal clear sounding. I think M50 pads inside them have round circle cut-outs inside the edges. Not 100% sure of this, but the pads also have a foam backing.
I made 4 tiny holes on the top and sides of each Pearstone pad (undernearth the pads on the insides). The bass seems to now be just where it should and it's no longer excessively warm! Really interesting find for me.
I have a ton of stock DJ100 pads so i'm going to see if I can mod them to make them sound almost identical to M50 pads.
As you know, the DJ100 has a bunch of fabric covered circles around the driver.
Edited by tdockweiler - 2/16/13 at 1:20pm