Any distortion pedal I tried generates noise when you turn it up. Just tried it on my Vintage and the hiss was very noticeable with the drive set to max. In my humble opinion the noise output is actually very low on Darkglass pedals compared to others. If it bothers you can set your drive lower and tweak your EQ for more distorted sounds OR use a noise gate.
Also… I’m not sure if I’m talking out of my ass right now but when I turned the volume on my amp to REALLY loud (to a point where it gets a bit scary loud) I had one hand muting the strings on my active bass and I swear that I heard my own heartbeat?? The cones of my speaker went DUM DUM … DUM DUM …
The hissing with maxed out level and blend seems normal to me. My Alpha-Omicron has some serious hiss going on as well under those settings.
Most often, you wont need to max out level as it increases the volume (especially if you set the blend to 100% distorted signal). Reducing the level should minimize the hiss. I usually set the level to have +/- unity gain and not have a volume increase when switching on distortion.
Fuzz pedals are really noisy… my Fur Coat is not only hissing, it’s spitting all over the place and if I place it in front of the tuner, it can act as a radio receiver when I switch on the tuner
) especially with the drive cranked. just part of the sound. you could post a sound file, sweep the drive up and down.