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 Reflex Volume Calculator tuning frequency Hz If the tuning frequency is unknown, test until the tube length fits cabinet volume liter Cabinet net internal volume = width x height x depth without deductions Calculate reflex channel from the reflex tube tube diameter cm For reflex tubes fill in the diameter in mm channel width cm Width of the baffle opening Calculate reflex tube from the reflex channel opening surface cm² Height x width of the channel