Originally Posted by MatthijsBlom
I'm wondering how this piece of gear solves hum an noise. I can build my own power supplies, but I don't know how to eliminate those hums properly when I connect more than one piece of gear to one psu.
If you are using a transformer with a single secondary winding in your power supply, then you will probably run into ground hum. You have to go through each piece of equipment and find where the ground loop(s) are occuring. Then you have to "lift" the offending ground.
It can be easier to just use a transformer with independent secondary windings. That way you don't have to chase down ground loops everytime you change equipment. I assume that is what this product does, but I don't know.