As you may gather from the foregoing, ProAcs will change depending on what you feed them. I have found them sweet with Pass Labs Aleph 3's, aggressive with ARC VT 100 II's, lite 'n' livley with C-J Premier 12A's, delicious and holographic with Blue Circle BC 2's. And with Cary 805's they are alleged to have gotten into some folks' pants. How do you like your eggs?