"Does that mean then because it is connected to the power amplifier, the Oppo would be grounded that way? I'm just checking that this wouldn't potentially eave the Oppo 'live' in certain cirumstances so that I (or the family) wouldn't get a nasty shock."

For a device that comes factory with a safety ground defeating the safety ground can introduce a failure mode where the chassis could be live. 3 prong devices typically ground the chassis through the safety ground. This is so if there is some sort of internal failure that causes the hot to hit the chassis the hot will be grounded out and your 15 or 20amp fuse will do its job and blow turning off the power and taking the power off the chassis

If you defeat the safety ground what happens if you have the same failure? Your chassis may still be grounded (through your interconnects or whatever) but are those interconnects going to be able to handle 15 or 20amps through them long enough to blow your main fuse or trip your circuit breaker? (HINT: Your safety ground is 12 to 16 gauge... what gauge is the ground in your interconnects?)

If your interconnects can't handle that 15 or 20 amps long enough to blow your fuse those interconnects are going to burn up (fire?) and your device will be sitting their live with 15 or 20 amps on the chassis waiting for you to complete the circuit to ground.

Shawn

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