Hi have installed a pair of kick basses 735 Phonocar and the Phonocar Kompo 580. The compo over the crossover and the kick basses with the Xetec xi in the range of 80-200 Hz. I separated the compo with high pass about 180. . It is properly insulated, but without housing Sounds quite good, only much louder (level) it is not compared to before with the compo alone. Is this due to the setting or is it generally not much louder? How should I adjust this perfectly, which 16 are the same in design. Thank you and greet from Koblenz!