Not sure if anyone knows about this or not, but it is possible to measure how many mA's your pedals draw very easily. Link: http://members01.chello.se/pastorn/fx/mods/power/measure.htm I tried it out tonight, and it is a piece of cake if you have a multimeter. I measured a few of my pedals to make sure I am not drawing too much from my power supply, here are the pedals I measured in case anyone finds this information useful. All of these values were taken with the pedal on drawing it's most power. Aphex Bass Xciter - 5mA Boss GEB-7 Bass EQ - 19mA Sansamp Bass Driver DI - 7mA Korg DT-10 Tuner - 17mA Digitech Bass Synth Wah - 84mA http://members01.chello.se/pastorn/fx/mods/power/draw.htm has some more popular pedals already measured, but not many of the pedals popular with the bass crowd. Feel free to post your own results (for those who don't have a multimeter and are trying to optimize their pedal board). I'll post more when I get more pedals!