play music professionally. these sound great. been through 3 of them in 90 days. buy the insurance from guitar center - if you're on tour with these and the left side goes out (it will) you'll be screwed for a week. seriously - buy these - but DO NOT hit the road with out replacement cables. and don't use them for anything other than rehearsals or shows - if they crap out on you mid-set, that's on them...  if you lose a side to What you're gonna be even more pissed.