I'm considering buying the 150w opus but am concerned about the 5V standby current draw. The opus users manual states that the opus can consume from 1 to 8 watts when the standby jumper is placed....8watts equates to 667mA @ 12V which will drain the battery too quickly. Has anyone measured the the standby current draw from the opus while powering an Epia M10k in standby without USB devices attatched. Currently I have a separate 5VDC regulator powering the +5VSB to the Epia M10K. I measure ~150mA at the battery.