No prob. Thanks for the clarification, and validation on the use of switcher or splitter. I can put my mind at ease.
The ATs, both the L3000 and ES9WA sound terrific with the v200. The AT cans are slightly on the bright side, so the v200 sound is a good compliment. With my nuforce HDP as a pre-amp, and volume turned up max per Fried's suggestion, I barely move the volume on the v200 (9:00-10:00) to make those ATs loud. I could therefore adjust the gain on the rear of the v200 if I desired, but it's not biggie. I need to do more listening. The ES9Wa is quite a surprising headphone, I must admit. It is small but has such nice, tight bass, and forward presentation that is excellent with a lot of my music (which is mostly alt rock, hard alt rock). That headphone is my quick: "grab on my head" (and I leave it out on a stand) closed can that sounds darn good, with both the HDP adn the v200, but have a "fuller" sound on the v200. . I keep my L3000s and HE-500s in their cases full time (I have a couple of kids, one only 11 who is around my computer a lot, and I do not want to take any chances...).