Agree about the Oppo not being up there with the Pass or Wilsons, but I'll throw the Mac in there as well, as from what I see it's full of opamps.
http://www.hifishock.org/galleries/electronics/mcintosh/preamplifier/c50-1-mcintosh.jpg
Cheers George
http://www.hifishock.org/galleries/electronics/mcintosh/preamplifier/c50-1-mcintosh.jpg
Cheers George