The IVA SUB Series is an entirely new speaker line dedicated to subwoofers. Because the SUB series is not tied to any IVA speaker series, its performance is unaffected. It's a great match for the current IVA DP and RX speaker series, as well as speakers from other manufacturers. The SUB series is specifically built for lower frequency kick and punch. It's perfect for a live bar, event, club, or auditorium.