Thanks for the answer, but I'm mainly interested in a comparison of the effects quality and the transparency of the bypass. I have a b3n for a few months, but I find the quality of modulation effects, and not only, lower than my line6 m5 as the bypass quality.
Boss GT-1B vs Zoom b3n - sound quality and bypass
You need to go back quite a few pages in this thread to find quite the lengthy discussion of the bypass state of the B3n. My personal testing revealed (to me) that when set properly for unity gain (via global output level), the tuner/bypass mode is virtually indistinguishable from a true, hard wired bypass.
You'd have to describe in quite a bit of detail what you mean regarding your feelings on the quality of the modulations vs. the M5. Without knowing a bit more where it seems you're having trouble, it's difficult for us to weigh in. I personally have had no trouble with the modulation effects I use, balancing them, or getting the desired effect...but that's just me.
Would you like me to find you where quality of bypass is discussed in this thread?