The combination of Alpine UTX-M08S and PXE-0850X. Use PXE-0850X to analyze the UTX-M08S signal, perform frequency division processing on the sound system, and then drive each speaker individually by the power amplifier. No matter it is the signal processing of the source of the sound or the characteristics of the equipment, it can be used ''to the fullest'' four. It can be described in one word, and finally, through professional adjustment, it can play a finishing touch to the whole system and make the whole sound come alive.