Have to inform you that a few musicians found out that “One Spot” Power Supplies are not compatible with DrNo-Effects. Unfortunatly I have to confirm that. The few complains we had about hum and noise were in all cases caused by “One Spot” power supplies. There for Dr.No is now developing a new Hum Free filtered and regulated Power Supply of 1.7A including Daisy Chain to power up all your Effects the right way and noise free!! Gonna post a topic soon to help you get your pedal board or pedal powered up the easy way by following a few steps.