What does the i stand for in the GS1000i from Grado? Improved, that's what! The GS1000i uses upgraded dynamic transducers and the 8-conductor cable design. All this, wood, driver and cable designs result in improved control and stability of the upper and lower range of the frequency spectrum with both better supporting the GS1000i's renowned midrange.The Grado GS1000i's cushion design actually creates a "room" for the ears to sit, creating a larger soundstage and greater spatial experience for the listener. It was important to design the correct balance between the driver and Grado's wooden driver housing to give you the resulting sound that you desired. This has been accomplished. By creating this "room" for the ears to sit, positioning of the cushions with regards to the ears (i.e., forward or back) is somewhat critical in finding the absolute sweet spot.The GS1000i retains a sound that is pure Grado, rich full-bodied vocals, excellent dynamics and an ultra smooth top end. The presentation is very detailed, the bass is deep and the music is very tight and non-fatiguing. All with a soundstage that is huge allowing for unbelievable separation and layering of the music which is simply stunning.Listen and enjoy!