Should Subwoofer Be Plugged Into Same Circuit?

I’m in the USA by the way. I get the feeling MillerCarbon May be in another country since we haven’t used aluminum in decades this side of the pond, and I have never heard of using 10 gauge wire for a regular electric run (either 12 or 14).

Thats a good idea on making a 20 amp dedicated circuit for everything if there is even a chance it could increase chances of a ground loop. 
Don’t worry, I have a home theater and a stereo setup, I’m just working on them both at the same time. 
Also, I didn’t think you were supposed to plug everything into a power conditioner. I’m probably wrong because I have never had one but will most likely buy that Brick thinga-ma-bob.

I’m glad you guys jumped into this convo because I have another question. 
Notice I said same circuit.

i need to branch an outlet off to reach the sub in the corner of the room. 
I don’t see why the sub would have to be plugged into the exact same outlet vice a branch outlet in the corner where there is only the two outlets in the circuit.

please advise.

Thanks Al! So why is a 20 amp circuit recommended over a 15 amp out of curiosity? 

I’m covered for all of that conversation. Lol
Also, it’s a powered sub.

I do wonder if AFCI/GFCI outlets hurt an AV system.

So if I read between the lines ieales you are saying a 20 amp circuit is unnecessary.

i was curious about the gfci because unfortunately my theater back up to my washing machine in the other side of the wall and has water lines running above it. That’s the trouble with a theater in the basement. Of course a gfci isn’t going to do any good of water is leaking all over the equipment. Lol