It just has bass-head bass and treble-head treble, but it is still balanced. I won't recommend them to you because despite the clarity they position the vocalist a tad behind the instruments. When switching between RE-262 and FX700 during my reviews, I felt that RE-262 was more like vocalist + support group and FX700 was instruments + vocalist. But they are still awesome IEMs!
Edit: Who am I kidding! I am comparing FX700 and GR07 now and if not for anything, their timbre scores 100/10 to be in your sight! You should just listen to how natural instruments and vocals sound when compared to most IEMs.