Note that on a 20amp duplex the ground pin is horizontal and on a 15amp duplex it is vertical. There are some 20amp units that accept either configuration.
And there are also some pieces of gear that use a 20a IEC inlet.
Point being that a 15amp plug will not fit into a 20a duplex or IEC receptacle.
The reason is that the committee in charge of such things wanted to make sure that consumers could not plug in an under rated power cord.
As far as what's a good 15amp duplex; there is a range from the classic Porter Port to the latest from Oyaide and Furutech. Take a look at VH Audio for an idea of what's out there.
And there are also some pieces of gear that use a 20a IEC inlet.
Point being that a 15amp plug will not fit into a 20a duplex or IEC receptacle.
The reason is that the committee in charge of such things wanted to make sure that consumers could not plug in an under rated power cord.
As far as what's a good 15amp duplex; there is a range from the classic Porter Port to the latest from Oyaide and Furutech. Take a look at VH Audio for an idea of what's out there.