Query on power cable with IEC C13 and US 2-prong

@ditusa Good catch!! I was looking for it near the power cord socket.  Odd that there is NO insulation between the main power fuse and the chassis though.  I guess I don't understand the requirements for being double insulated.

@ditusa I believe you.  I'm not saying amps MUST have a ground.

In the case of the Emotiva, it is correctly labeled as being double insulated on the back, with the double rectangle symbols as can be seen here:

@ditusa  I have a Luxman 507ux, and it is also groundless.  I'm also not convinced this is appropriate for the US.  It's not rated as double insulated or Class II, and the fuse and other wiring could, in theory, come into contact with the chassis. 

I'm afraid I'm not knowledgeable enough in regulatory compliance to know if this is as it should be or not.

While @ditusa is correct that double shielded devices do not require a ground, the double shielding mark is absent, and internally it does not appear to be double shielded. Also, internally there IS a connection from the ground pin to a chassis screw (based on a picture).

Having said all of that, the chance for contact between the power and chassis exists only at the 200mA fuse. Everything else looks very well insulated and I’d say that the chance of an actual Hot to chassis fault is nearly zero, barring immersion in liquid.

This is interesting.  I have a Luxman integrated which, per US regulations should have been grounded, but is not.  I wonder if it's some common Japanese equipment thing?