So the B&W X-over could be improved IMO.by swapping the parts for ones that cost a few dollars more?
@kenjit Possibly - I would have to take a look what is in there now but IMO probably yes. My old Alon Model V MKIIs used such basic parts that although they sounded good at that time, just changing out the resistors to mills, replacing the caps, etc. made a nice improvement for not much more costs (a few hundred if I remember correctly). Bass had better impact and clarity, mid-range improved although I liked the mids to begin with, and highs were clearer and more transparent. It was more balanced and musical.-
Swapping parts is not hard to do and you can always change it back if you don't like the sound.