I won't hear anything as it has a steel chassis and is therefore utterly irrelevant – the steel chassis will be holding it back far more than a few screws ever can. As I said earlier this doesn't make it a bad tuner at all, it's actually a seriously good one. The point you really start to hear this stuff is with things like say a DNM or a Tom Evans, i.e. things that have been designed with an understanding of how materials interact (they both use plastic / Perspex cases). Place them on a metal stand and hear everything kind of 'go off' a bit. The Nac 32.5 is pretty easy to hear too as it is aluminium and doesn't have a transformer or other large ferrous items nearby. Try it, but do it on a decent stand, i.e. not a metal one.

To me this stuff definitely exists, I have proven it to myself on many occasions (and yes, on occasion in blind test environments), but it is not the be all and end all. It is not mission critical. I have things in my system that are ferrous (tuner, valve amp), but I acknowledge the fact and keep them as separate as I can from other things designed in a different way. It is all to easy to get carried away with this stuff, but it is also worth understanding as much as possible about how things interact as it can be a free upgrade or two.

Tony.