The Marsona DS-600A has been around a long time.  It is made in the USA by Marpac Co.  Weighing in at about 2 pounds this unit feels well build.  The operation is straight forward.  There are sound selector switches on the front.  There is a one push button to allow this sound machine to turn itself off in 60 minutes.  Don’t push the button and this sound machine will run forever. Read more…