Passive Crossover schematic

Crossover is a tool to limit the "frequency range" to be accepted by the speaker. Imagine that the court act as traffic police, which regulates the flow to the tweeter, midrange and bass for the subwoofer. Imagine if you had not crossed, the frequency will be chaos, there is a loss of low frequency on high street frekwesni tweeter on the subwoofer, so it is not effective and also if there are