@cmb13 Not certain where you are located but if you are anywhere near Sarasota, Florida, visit Suncoast Audio. I was there back in May 2023 for a visit and spent a few hours with Mike Bovaird the proprietor listening to some gear. In one of the main listening rooms he has a pair of B&W 800 series speakers (I think they are the 802D4). When I listened the speakers were powered with Block Audio SE monos as well as several other amps we switched between (video below of the room but not at the time I was there).
Mike is a big advocate of subwoofers (2 or more) to smooth out bass response in the room. The effect of the subs seems subtle until they are turned off. The the soundstage shrinks, air around the instruments diminishes and the presentation justs seems less relaxed and musical. He uses B&W DB1B subs in this room but also for his personal system in support of Kharma DB11s speakers. I am personally sold on the idea and trying to figure out which subs (REL or B&W) to fit in the room.
Wherever you are located hopefully there is a dealer near by where you can listen to the impact of subs on 2 channel music and judge for yourself.