I had some round cut velour lying around I covered the driver with to tame the highs and also keep that pesky dust out I lose some of that lightning sharp treble but the sub bass is really brought up and rock music on this thing is just killer and so natural and it actually slams. I feel like I’m right there in the studio with Dire Straits
i use the I-cushions made for the i/e-Grado to cover the speaker grills, and in my opinion they have the best sonic damping properties of the Grado cushions. i use them to cover the drivers while using the G, L and F pads. adds comfort and sounds better.