How can Wilson Audio speakers sound that good if they are using OEM drivers?


How can Wilson Speaker sound that good if they are using OEM drivers made of last century materials? B&W used Kevlar and now Continuum, after a lot of R&D. Magico uses Graphane which is the new Carbon Fiber. 
Would a Wilson Speaker sound better if somehow one could put a B&W midrange Continuum driver instead of the OEM paper driver they use?
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Does anyone of you know which drivers the Wilson Sasha-2 is using? A mix of ScanPeak & Seas? Which drivers exactly?

Most Wilsons sounds great, but they don;t fit our interior/house. So looking forward to use the same drivers in my DYI speaker (and offcourse, I will try to learn from their design/enclosure dimensions, ports etc...). 


Since it would be nearly impossible to know how their crossover was designed, why don't you consider one of the high grade kits available from PBN, or Madisound? You could still build your own beautiful cabinet if you are able to do that.