I giggled with a K12 for a season. Took my pedal board to the mixer, took an aux. Put acoustic guitar, bass and kick in it. Just an extra wedge. Rest of the band got bass in their monitor if they wanted it. Mostly we cue off the guitar and kick ...
I went back to using my 12/6 and the band was like, oh that's much better. 12/6 is smooth down to about 40. I run a high pass and low pass filter on my bass. The filter as I recall is around 100, gentle tool off. Drummer boy has a fat deep sounding kick so I give him the bottom.
I don't eq my bass in isolation. I eq in relation to the kick. just like when I'm at FOH...