DCBrick would likely cause the same problems. Is there a mA rating on your power supplies? I think the first one should be 200mA, but the other one is a mystery.
Multi effect pedals usually draw a lot of current. More than 200 mA. This could be the source of your problem.
Multi effect pedals usually draw a lot of current. More than 200 mA. This could be the source of your problem.