Two good speakers you are looking at there. I much prefer the Sig8 of the two. Not sure you are going to get away from the "bright" sound, though.
If I may, here is another option you might consider, the Dynaudio Focus 360. A very nice full-range speaker that also has Dynaudio's magnificent Esotar2 tweeter in this model.
If I may, here is another option you might consider, the Dynaudio Focus 360. A very nice full-range speaker that also has Dynaudio's magnificent Esotar2 tweeter in this model.