My 35's seem tilted a bit toward the treble. I use an outboard EQ to bulk up the lower frequencies when using my active sub and they sound beautiful - open and full-sounding. The new 81II's seem more balanced but I love 'em both.
Dave
Actually the 35's sound best when run full range on stands. Without a Xover and volume adjustment on the sub there's no way to roll off the upper bass frequencies.