I always figured the pop was due to extremely sudden voltage loss: a step function.

If so, it would be voltage loss on the MAIN POWER or perhaps a voltage loss or spike on the AUDIO CABLES, but not the amp remote line. The amp remote line is there to PREVENT pops. And even on the empeg, it does a really good job of it as long as I'm not doing something goofy to the software (like crashing it) that prevents it from shutting off the amp remote line when it should be.