I just plug mine into the same outlet and I have never had an issue.
You don’t need anything special to plug subs into. Even the biggest subs, I am talking 18” subs with 2000+ watts pull about 6 amps at peak power. You will listen to music at 1/10 their peak. So now power worries. In home theater with lots of gear running full tilt it could be an issue but again unlikely.