Typically the only circuits in our North American houses that have/need dedicated 240v. are Stoves and Dryers or Large shop tools. The 240v. is for users in other Continents.
If you were to put a dedicated 240 outlet for just your sub/subs is total overkill
There are a number of people on this channel whose ears perk up when they hear the word "overkill". I may have become one of them.
My last house had a 240V outlet box in the garage for the previous owner's Big Honkin' Welder (I always regretted moving before having anything to plug into it) and it seems to be becoming more common for people to run 240V to recharge electric cars.
I'm starting to think that it's time to start using 240V for other applications... we have to buy two or three amplifier boxes to power active LFR's, and with a 240V in-feed that could probably be combined into a single box (maybe even including DSP).
The subwoofer possibilities are... interesting.
