my PL-30s died in less than a year
my UHP336 died in a day
my PortaPro is still running fine after a year... however the heat shrink at the jack is getting loose
my klipsch s4 is just about dead after about a years worth of abuse, spliiting cables. replaced by a new pair klipsch s4s again. (just love the clear silicon you get with them)
I roll it up and pocket it.
my se530 is still running good after~ 2 years; however Ive been replacing foam sleeves every 6-7 months.
4 years and running...