I don’t use powerful subwoofers. I use a full-range speaker system that is essentially flat in-room to below 20 hZ.
No sub here too, don’t know why people use sub at home for vinyl listening, and what is the speakers if they can’t reproduce bass? Sub is for cinema (digital) or as a competition for small bookshelf speakers that can’t reproduce bass at all.
I’m with Tannoy System 15 mkII , don’t need any sub and life is good.