Amping the MA900 is a must have, the goodness of this cans is that we can use them without an amp, but with one they get even more life.
I have since today a good upgrade for the MA900: I cut the sponge inside the Shure 940 pads and the transparency of MA900 returned to normal levels compared with sponge. These pads make them even more comfortable and increases the soundstage width. keeping this setup for sure.
Inicial this pads have some oval shape, but cutting the sponge break that Shap, I must now leave the pads 1or 2 days with some kind of bottle or glass inside the pads to force their circle shape gets permanent.Edited by pack21 - 7/29/14 at 3:02pm