I've been experiencing an awful lot of hissing type noise coming from my pedalboard setup. I think I've isolated the problem to my pedalboard but beyond that, I'm having a hard time fixing the issue which is really only a problem when I stop playing while the pedals (one or two in particular) are still on. My chain setup right now is bass-Digitech ex-7 (used as a volume pedal)-Digitech bass whammy-Morley ABY splitter (A side goes to the rest of my pedals, B side goes into the clean channel of my amp or isn't used)-Biyang mad driver od-10 (tubescreamer clone)-JHS Moscow modded green russian big muff-Morley power fuzz wah reissue-Boss turbo distortion DS-2-Alchemy audio modded Boss CS-3-Zoom B1on (emulating a noise gate, Proco rat, and an EQ)-Seymour Duncan pickup booster-old Peavey bass amp (I don't know the model really, it just says Peavey and bass on it but it has separate input channels for clean and distortion) . The noise mostly seems to be coming from the modded big muff unless it's the only pedal that's on. The CS-3 is pretty much always on and seems to amplify the hissing while it's on and the TS clone is almost always on but causes no issue. I'm using the truetone cs-12 for a power supply for everything except the two Digitech pedals which each have their own special power supply. Any pointers as to what I can do to at least reduce the noise, because at the current time, I have to do a weird little stomp dance to turn off everything to avoid the noise. I realize that I use a lot of pedals for a bassist (more than any of my guitar playing friends) and I know that a couple of the pedals are out of order when looking at conventional wisdom (for example the wah being late in the chain specifically because I like the way it screams behind the big muff and TS clone) but I would like to figure this issue out as best as possible. I greatly appreciate any pointers anyone can give me. And if anyone wants a description of then noise, it sounds a bit like a jet engine filled with angry snakes but much quieter if that makes sense. I'll try to clarify anything if needed and thanks in advance to anyone who can help me.