Pedal board power supply for HX Stomp in Helix Posted September 16, 2019 To the best of my knowledge, because of the scribble strips and additional LEDs, the FX actually draws more current than the Stomp. But yeah, the L6 adapter reverses polarity for old L6 devices, so the polarity plug reverses it back to 'normal'. That's the only "downside." You may be able to find a third party plug, but the Truetone comes with everything in the box. I reduced the size of my board from a PT-1 to the Metro and got rid of a bunch of short extension cords and power strips that I needed to deal with multiple wallwarts/PSUs. New rig is clean.