In audio systems there are several key equipment such as amplifiers, crossover's, equalizers, etc. transducers. The objective of this work is to design and implement an active crossover Linkwitz-Riley 4th order with four-way. Where this crossover presents a list of very good cost x benefit. Thus, we present the design of the crossover with choice and calculation of all relevant parameters the same, if chosen carefully crossover topology, the type of approach, the amount of more convenient ways, among others. The simulation reinforced the choices and calculations in the project in order to condition it with more security and certainty for implementation, and provide a broader view of the crossover. The implementation was carried out initially in test plate to check by measuring the correct operation of the crossover, and soon after was drafted the final circuit board.
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