Reflex Volume Calculator Conversion THD dB / percent Level lowerance Membranesurface and girth Absorption circuit and trap circuit for inductors Absorption circuit and trap circuit for capacitors Transmissinonsline calculation "Intertechnik line" Wood Absorption circuit and trap circuit for inductors Resonances at the transmission end and through the baffle step conditional level peaks can be effectively smoothed by suction or blocking circuits of a capacitor and a coil. The calculation helps to find an initial value for the measurement or simulation. An additional resistor ensures the right amount of smoothing. Frequency Hz Coil mH