Here's a tip, after reading in the last review that mass loading was helpful, I put three heavy marble bookends on top of my AH2.0, which sits on top of three Hyperion Magnetic floater discs. It worked! The sound is more relaxed,natural, and focused.
After years of satisfaction, and a bit reluctant to change since I was so pleased already, I am sending in my unit for a full upgrade (power supply, Clarity Caps, Vishay, fuses and fuse holder, Furmen IEC etc. to bring my unit up to the level of a 2.2nBcvg. as always Victor was great at helping me decide. Wish me luck!
Joe