Lilium separates its deep-bass system from the main acoustic chamber. Three 7-inch woofers handle upper bass, while a downward-firing 10-inch subwoofer and passive radiator extend response to 20 Hz without loading the midrange cabinet.
That split architecture gives Lilium unusual scale and composure. It can reproduce organ, orchestral weight, and room ambience while keeping voices clear and well placed. Its six binding posts also allow separate adjustment of the sub-bass section during system setup.