If you use a switch mode supply to power your pedals and want to hear the true clear well defined tones, you need a noise cancelling device such as The GigRig NCF.

This filter cancels the high frequency noise by generating a negative opposing current. It simply fits in line with the output of your Switch Mode supply and can be used with any Switch Mode output voltage. The NCF is best used with The GigRig Distributor to provide all your equipment with clean noise filtered DC power.

Applications:

Audio equipment supplies (studio or stage sound systems)
Guitar effects pedals
Guitar Pedal boards
Radio equipment power supply cleaning.
Radio equipment FCC and CE approvals improvements
RFID systems.
Any electronic equipment that requires a clean supply across a wide frequency range.