I like to generally sit in the "sweet spot", dead center and a bit further back than the performance width.
I listen with my larger OHMs in a similar configuration but I listen to the 100s in the smaller room more nearfield like being front row just left of center.
Sometimes with the larger OHMs in the larger room, I sit near field also, just 1.5 feet in front of and a tad outside of the left speaker (they are about 6 feet apart) and the soundstage shifts yet remains detailed and coherent.
One nice thing about good omnis is you can sit if different locations and get different presentations without moving the speakers, which can make for a nice and easy change of pace.
I listen with my larger OHMs in a similar configuration but I listen to the 100s in the smaller room more nearfield like being front row just left of center.
Sometimes with the larger OHMs in the larger room, I sit near field also, just 1.5 feet in front of and a tad outside of the left speaker (they are about 6 feet apart) and the soundstage shifts yet remains detailed and coherent.
One nice thing about good omnis is you can sit if different locations and get different presentations without moving the speakers, which can make for a nice and easy change of pace.