Presence represents a new level of performance and value in In-Wall and Ceiling loudspeakers. Our signature Lifetime Limited Warranty ushers in these straight forward no-nonsense loudspeaker systems. Practical engineering and the best materials available are present throughout this comprehensive and well thought-out product line. The Presence line is known namely by it Kevlar woven fiber woofers with butyl rubber surrounds & ferro-fluid cooled silk dome tweeters. Midrange drivers, thick fiberglass crossover network PC boards populated with high-grade electronic components, over-drive tweeter protection, heavy gauge oxygen-free copper wiring and stout gold plated high tension connection terminals are other features of the Presence line.