I'm trying to split the midi signal from my PBC6X in order to handle additional "dead end" TRS devices. I've purchased a Midi-Solutions Quadra Thru to split the signal. For some reason, the box does not seem to be receiving the required power from the PBC. Anybody try this box with the PBC6X and how did you hook it up to make it work. As an FYI I'm using One Control cables.