heres some shit you didnt know about the mk2s, there is a design flaw in them, the power supply is too close to the amps and the functionality will become intermittent after a certain amout of hours of usage.
you have to contact alesis when this happens and they send you a new wossname which you have to doctor yourself.
granted i left my monitors on for that month i was in the carribean, think that might have added some wear and tear to my loved ones.
also, this info is from the school of what some guy down the pub told me, i havent researched it very much, or should i say at all