4)Is the power cord grounded, or just two-prong?
5)If it's two-prong, is it safe to plug this unit into the receptacle on my amplifier and leave it switched to "on", so that it will power up when I turn on the amplifier?
I recall reading somewhere that you should turn it on first and turn it off last, to prevent spikes going to the speakers. Did I dream that, or is there substance to that statement?
I plan to build the sub later this winter, but in the meantime, I thought I'd get the DCX and use it with my present sub. It will all depend on the amount of "interaction" required after initial setup. It's not an issue for me, but if the wife has to do any more than simply switch it on, it's going to be a problem! I'm not even sure she'd be happy to have to walk over to the component stand.