Some months back I went passive, and found I was fortunate that my gear ( sources and amp ) were very passive capable. I had a tube pre and a ss pre, both of very high standards and recognized in the audio community for being excellent ( which I will not name ). I will tell you that in my situation, I can never go back to an active pre ( in this particular system. What I am hearing from my sources is less colored, more detailed, and truer to the recordings. I am getting plenty of dynamics ( a very important characteristic to my listening ), and greater PRaT. Enjoy ! MrD.