I tried an interesting test the other day. I just switched off my turntable and turned the platter with my finger and listened. Obviously there was some pitch instability but I could get a good idea of the 'character' of the deck. Next I flicked the power on and did the same again, I could keep the speed more consistent by watching the strobe but otherwise the sound quality was unchanged. Next while I was turning the platter at 33 and a 1/3 I'd press the start button and, well, nothing much changed. Better pitch stability as expected and otherwise exactly the same sound character. I'm with the people who trust their ears so I'm not asking for measurements but when can someone post some before/after PSU-mod sound files? I can post some recordings I've made of my Technics with the stock PSU and the CD release of the same track for comparison and I reckon the vinyl recordings sound better. I'm not convinced an external PSU is going to add anything but I'd love to hear evidence to the contrary.
