George, one problem I can see is that when I run several MRC's back-to-back, with as near to identical positions as can be had, I don't get consistent decay times anyway. Not sure if you find the same thing happening. They can vary by 10+ms between runs.

Therefore, with this degree of variability, it might be impossible to measure effects that might be orders of magnitude smaller.

It is not unlike the "snake-oil cables" thread I ran a few months back. My ears could hear a difference in performance into the 8k's but I'd be amazed if it was something that could be measured via an spl meter. The changes were just too subtle and not really related to levels. More about textures in sounds etc.

Ironically, you may recall that I tried to stay well clear of the Punch and Judy name calling about cables to avoid what sadly occured in the original thread here.

However, in the same vein as that thread, I'd like to know if the PSU changes do yield +ve changes in G68/568's, particularly in DSP setups, and why that is.

Ronomy, I hope you can pursue this to some extent. Do keep us posted.

cheers

Rgds,
Nick