George, as a matter of fact, a number of equipment manufacturers (notably power conditioners, I don't know why those but...) offer optional power cord upgrades . . . . either of their own or others manufacture. But these come at a (usually significant) price increase. If they offered these cords standard, they would price their equipment out of the market, so they just can't do it.
Another thing I learned recently, was that in order to obtain UL approval of their equipment, any shielded PC (either detachable or hardwired) supplied with the equipment must have the shield attached to ground at both ends, a configuration that often creates more hum problems than it eliminates.
So the manufacturers are in a sort of a damned if we do or don't situation.
Another thing I learned recently, was that in order to obtain UL approval of their equipment, any shielded PC (either detachable or hardwired) supplied with the equipment must have the shield attached to ground at both ends, a configuration that often creates more hum problems than it eliminates.
So the manufacturers are in a sort of a damned if we do or don't situation.