Anyone have any advice on running 18 volt active electronics through a pedal chain? I'm playing a hotrodded Ibanez SR755 with bart NTMB (in 18v config) and bart USA pups through a hand-built tube distortion (running a 12AU7) and a BDDI. I typically run quite a lot of mids with some bass and song-dependent amount of treble (usually cut a bit) I'm thinking about adding some more effects, but I was wondering if there's a good way for me to use the tube pedal as a sort of "preamp." Unfortunately, I'm already at the lowest gain settings on that box. And, if I add some effects, I'm a little worried about burning out the boxes running that much gain into them. Are there any good options besides flipping the active/passive switch?