These Behringer "Midas designed" preamps are NJM2122-based jobs and quite notorious for having high distortion near the upper end of the gain spectrum and at high levels. You'll probably be well-advised to only use as much input gain as needed to safely overcome the ADC noise floor and push levels digitally in post if needed, while sticking with recorded peak levels below -5 dBFS. (I would do test recordings at various gain settings and then run FFT analysis on them to see where the noise floor starts to flatten out in the high frequencies.)Well, nowadays I don't own any dynamic mics, so I guess I'm (relatively) OK -- although I do sort of miss my old E-V 660 (the poor man's RE-15). Now you've got me wondering if my Behringer's "CLIP" warning LEDs are accurate -- supposedly, its mic preamp circuitry is cribbed from Midas, which Behringer acquired many years ago, but who knows what corners were cut to hit such a crazy-low price point -- thanks a lot, Steph!
Depending on how conservative you are, the input level limit for acceptable distortion near min gain is somewhere between -4 and -7 dBu, or 118 to 121 dB SPL on a relatively hot (-37 dBV/Pa) condenser.