First, Dave, can we express to you and your family our deepest sympathy on the death of your mother.
Also with respect, Dave, don’t downplay how effective your existing system already is.
I would like to address the comment made to you by DSJR :-
>> “The system itself should be set up as carefully as you can, using appropriate wiring etc for the units connected, before even thinking about direction of screw-slots – IMO” <<
I have the impression that you both might be thinking I am advocating an either or situation. In other words – EITHER concentrate on setting up the system carefully OR line the screw slots (plus other things). I would advocate both to be considered as a ‘whole’ – as all encompassing - to getting the best listening environment.
Let me give a quicky explanation as to how the ‘freebie’ techniques came about.
During the 1980s, as various ‘audio reviewers’ were gradually describing doing certain things with their equipment and with their environment – things which did not seem to make technical electronic or acoustic sense but yet they reported gaining improvements in their sound, people who did not actually try such things could not understand how such improvements were happening and would dismiss reviewers descriptions of “remarkable improvements”, “surprising new quality of sound” etc as ‘over the top’ as ‘exaggerating’ an effect. And, because they could not understand, they were reluctant to then commit to spending any money on so called ‘tweaks’.
During our own investigations we had also discovered certain things gave improvements in the sound so we described some of those things to various interested reviewers for people to try these ‘freebies’ for themselves so that IF people COULD hear identical improvements to the ones being described, then they would better understand what the reviewers had been experiencing and therefore have more confidence in trying (even buying) some of the actual ‘tweaks’ for themselves.
The lining up of the screw slots was just one of those ‘freebies’. So, if you try it and don’t hear any changes in the sound, then nothing lost. If you try it and gain an improvement in the sound then something gained. But, what is gained would be an understanding of what CAN have an effect on the sound !!
Another such ‘freebie’ technique was the freezing/slow defrost technique, also way back some 25 years ago.
Regards,
May.