@atmasphere - thank you for your generous reply, Ralph : )
It has got me thinking of two more questions - your reference to bandwidth will obviously have to do with the bandwidth of the cable itself, since as you stated - ‘The bandwidth of the equipment used has nothing to do at all with whether or not the power cable will have an audible effect on it.’ This being the case, may I assume then, that aside from the measurable quantities of voltage drop and bandwidth of the cable, nothing else will have an effect on sound quality from power delivered by a power cable, everything else unchanged? And, how difficult is it to build a power cable with the greatest possible bandwidth? Thanks again for your kind replies.
In friendship - kevin