Just looking at the Stock B&w filter and is very adjustable with internal switches maybe could come closer to match other speakers.
Id say pick up a Pair,
I kick myself in the Ass for selling the JPS labs Golden fluke filters.
B&W bass alignment filter (BAF) and Krell BAF on Legacy Focus
The 801s used to come with a bass alignment filter (basically bass eq) that bumped up certain very low frequencies and filtered out some "junk". Many say they were an overall detriment to the sound but many swear by them.
Today, I have a pair of 801 s2 that I would love to try out the BAF make my own opinion but I also got a pair of Legacy Focus speakers which are phenomenal in their own right but I've heard they may benefit from the BAF too.
Have we reached a concensus in the past 20 years about these things? I've tried to research threads but don't have hundreds of hours to dig through.
Also, why don't any speakers use BAF's or equivalent today?