I would say no and here's why. The last time I agreed to let an opening act's bass player use my rig, I did so with very explicit instructions not to adjust the EQ (semi-parametric), to use their own DI and to not mess with the gain or volume (in otherwords DO NOT TOUCH). Well needless to say, he ignored my instructions; completely screwed up the EQ by taking all the highs and mids out and jacking the lowend, turned up the volume way too loud for that much bottom end (I'm surprised my speakers survived) and used my DI which meant the FOH bass had to be re EQ'd to compensate for his crappy sound.

