PCL 10 Pro Power Conditioner : Too noisy to be good

A while back I built my first rack and off course I was pretty sure I needed a power conditioner (many youtube clips will tell you why). The Adam Hall seemed about right in the quality for money range. At first I did have a few issues with what seemd like a faulty connection (you would here the electricity sparkle) but I could solve that. Today - upon - building an on desk rack, I suddenly realised this conditioner makes a whole lot of noise (even when just plugged in and doing nothing), so I decided to use a basic unconditioned socket (also from Adam Hall). At least it got rid of the noise and to be honest, everything worls like a charm, so I'm still guessing why I thought I needed a conditioner in the fierst place. Looks good, seems of decent build quality. Only buy if you enjoy a 60 cycle hum.