Saki70, no 6m is the longest I have dealt with, but I have friend that has used approx. 10-11 meter out of a Pioneer Elite to a Sharp projector and seemed to be getting very good results. He was using Monster at the time.
I think if he had any shortcomings, it may have been the cable and the path he chose that may have introduced some interference.
I think if he had any shortcomings, it may have been the cable and the path he chose that may have introduced some interference.