I have a Cubo 15, and am currently working on a building a cubo kick and an mt121 to match. Until now I had just set the crossover point between my midtops and the cubo 15 at 110hz. What should the signal chain look like with a cubo kick incorporated? I'm aware that the kick is designed to peak around 110hz. Does this mean I should have two separate low pass crossovers, one set at 110hz and the other one at some higher point like 200-250?
When talking about crossovers in this situation, it means a low pass (@ 110 Hz) for the Cubo 15 and a high pass (also @ 110 Hz) for the Cubo Kick. The next crossover is a low pass for Cubo Kick and a high pass for the MT121. Most PA rack mounted crossovers (analog and digital) allow to vary the crossover point, so you can test what sounds best to you, that might be 110 Hz and 200 Hz. For the kick 80 Hz or higher and for the MT121 170 Hz or higher are safe.