This is a fantastic power supply with a lot of options for powering whatever you can throw at it. It's very neat and small and the range of cables included in the box really should cover everything. It buzzes a little, but imparts no sound on the audio signal.
The only issue I have with this is the heat; it gets VERY hot. I'm running it on 230V, using 5 outs (9VDC only), but only drawing 1.1A of the available 1.5A, with none of the individual outs drawing more than 265mA. After an hour or so this gets so hot that it would burn your hand. It worries me to the extent that I won't leave this switched on unattended. For this reason it would be nice if it included an On/Off switch.