Burkey and some others (Analogman,I believe) have tested the TF for current draw and it seems to max out around 600MA. If you`re not persuaded there, I`m using a One Spot for each of my two Factors.They supply 1700MA each. You have to use the Line 6 adapter though. That reverses the polarity (to +) and increases the barrel size (to 2.5mm).
