JL Audio F110 Loud pop when pc unplugged ?

That should not be unless you are unplugging them while their caps are still charged, maybe? Does this happen after they've been off for say a few hours?

I had a pair of F212 in my system for a couple of years and never had any popping issues. I can’t remember if I unplugged the AC cord other than trying various cables to test performance.

Not to be rude, but why do you unplug the H110? It has a standby power so no signal shuts down electrical draw after a few minutes.

Great subs by the way, mine were impressive.

Is there an on/off switch? If so, try turning the sub "off" first and waiting at least a minute before pulling the power cord.

I would not unplug the unit unless an electrical storm is coming, then make sure the unit is off and not in standby, and don't unplug it until a few minutes after it's been turned off, that has worked for me.