John,
When I put the Z-der block back in my system after about a month haitus, the improvements I heard were related to clarity and focus. More detail and better image stability. As I mentioned, I thought there was an improvement upon first putting them in the system, but I really couldn't put my finger on it. The sound seemed to have a little more presence is all I could surmise. After taking the Z-der block out of the system for about a month, I felt the sound had become a bit more subdued. I'm not sure how the thing works, but it does in my system.
When I put the Z-der block back in my system after about a month haitus, the improvements I heard were related to clarity and focus. More detail and better image stability. As I mentioned, I thought there was an improvement upon first putting them in the system, but I really couldn't put my finger on it. The sound seemed to have a little more presence is all I could surmise. After taking the Z-der block out of the system for about a month, I felt the sound had become a bit more subdued. I'm not sure how the thing works, but it does in my system.