Driver edges sealed with damplifier pro instead of foam. Soldered 3.5mm connector pins direct to driver. Dont think thatll hold up. The 3.5mm socket nuts tend to loosen when plugging+unplugging cable. Try tightening as much as possible with pliers but doesnt stay tight for long. From what I remember HD800 doesnt suck as much from iphone dongle as HD6XX. HD800 driver is easier to drive?