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Ajuste de fase de un subwoofer

Frequently Asked Questions

Written by Jose Liberio Cruz

Updated at March 10th, 2026

Table of Contents

Brand: Models: Question:   Answer: Nota:

Brand:

  • JBL

Models:

  • Subwoofers JBL

Question:  

¿Cómo se ajusta la fase de un subwoofer?


Answer:

Dependiendo de la fase absoluta en los altavoces y amplificadores principales, asi como la distancia del subwoofer al resto de los altavoces con respecto a la posición de escucha, las frecuencias graves en la region de cruce pueden ser atenuadas si se invierte la polaridad del subwoofer.  Tipicamente, para la mayoria de las aplicaciones, la fase se mantiene a 0°.

Mientras se encuentre ubicado en un punto óptimo de escucha, reproduzca música con contenido de graves que le resulte familiar, y luego solicite la ayuda de alguien que cambie el interruptor de fase 0/180 en el subwoofer a 180 grados.  Esto le permitirá determinar si los graves suenan más fuerte en esa ubicación.

La configuracion con la mayor carga de frecuencias graves es donde el subwoofer y los altavoces estan en fase.  Use la posición del interruptor (0/180) que genere dicha carga en el punto de escucha. 

Nota:

Algunos subwoofers pueden contener un control “variable” de fase, que proporciona un ajuste mas preciso entre el rango de 0° y 180°.

 

 

Si al cambiar entre 0° y 180° no percibe ninguna diferencia, generalmente significa que no existen problemas de fase ni de ubicación entre los altavoces principales y el subwoofer.

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