1. Because, under carefully controlled conditions, the measurements wouldn't consistently reveal significant differences ...
OR
2. ... even if measurements could reveal ~significant differences, it would be too hard to agree on and consistently repeat controlled testing conditions. I suspect the differences some people report, if real, are attributable to changes in length, gauge, or fiddling around with connections. Or to small changes in speaker positions that occur in the process of changing cables.
OR
2. ... even if measurements could reveal ~significant differences, it would be too hard to agree on and consistently repeat controlled testing conditions. I suspect the differences some people report, if real, are attributable to changes in length, gauge, or fiddling around with connections. Or to small changes in speaker positions that occur in the process of changing cables.