Stasys 218 2x18" Reflex-Loaded LF Loudspeaker 2400W BlackThe Stasys 218 is a double 18 reflex loaded, low frequency enclosure built around traditional principles but designed with Stasys philosophy and attention to detail. In order to extract the maximum performance from the design, the heart of the 218s 18 mm birch plywood enclosure was subjected to the same resonance mapping procedures as all other Stasys low frequency models. This practice has dictated the type of materials used around the enclosure,