The ultimate High End speaker drivers The EXCEL line combines the best designs with SEAS experience in material technology and production. Only our most skilled employees make them, by hand and only after carefully inspecting each part to ensure high quality and consistency. The goal: A loudspeaker without compromise. One designed to be an essential component for High-End loudspeaker designers. SEAS Excel drivers are designed for the discerning listener who accepts nothing less than the best. SEAS Excel drive units challenge the state of the art; Combination of first-class engineering with advanced materials and precise manufacturing techniques.