> So is this a load of old bullshit or what? > http://analog.no/cms/index.php/modifications/korg-korg-polysix-noise-reduction
Don't think it's "bullshit" but it is a bit inelegant and also I'm guessing may not help airflow/heat-buildup?
I think this kit provides a superior solution http://kiwitechnics.com/kiwisix.htm
(specifcally the "KIWISIX POWER SUPPLY UPGRADE", halfway down the page.
It improves the PSU stability and includes extra earthing, it reduces noise substantially, as well as making your Polysix a lot more reliable.
David