In House Manufacturing vs. OEM Sourcing


I've been away from the hobby for quite some time, and my recent search for a new pair of loudspeakers has my head spinning.  I never realized there were so many companies making loudspeakers these days.  I've never heard of 60% of them.

What I do see is that the vast majority are using drivers from OEM manufacturers.  While some claim that the drivers are "made to their specifications," the skeptic in me thinks there's a bit of smoke in the air.  I'm sure someone like Wilson Audio is an exception, but I don't believe that's the case for most of them.

I would imagine that companies that manufacture their own drivers (Focal, Dynaudio, etc.) would have a distinct advantage in developing and voicing a loudspeaker.  I'm not saying there there aren't some exceptional speakers out there that use OEM drivers, but it seems that distinction is limited to the ultra high-end.

Thoughts?
seadweller
My sentiments echo what everyone else is thinking - don't discount any speaker manufacturer just because they're using off-the-shelf drivers.  A great example, as pbnaudio mentioned before me, is ScanSpeak.  Their "Revelator" tweeter is superb, just one of those cases where they nailed it, hit a home-run, and it ended up being used in many great designs.    For many speaker designers, there would be no need to pour money into R&D to try and come up with a better mousetrap - with great components already in existence like the "Revelator", or Vifa's Ring Radiator tweeter, there's no need to reinvent the wheel (in very simplistic terms).   And fortunately for us non-oligarchs, you don't have to spend ultra-high-end money to own speakers with these components.
Whoever mentioned Scanspeak or Vifa is right to the point. I don't know any of their own house speakers at all. They mostly manufacture drivers only, but many manufacturers and DIYers using them.
Believe me, I know the challenges of building a DIY speaker system, as I attempted it myself.  Had it not been for a substantial amount of outside help, I would have ended up with a gigantic pair of clock radios!  I grossly underestimated the engineering and skill needed to produce an audiophile level system.