Klipsch R-115SW 15" Reference Series Powered 800 Watt Subwoofer + Klipsch WA-2 Wireless Subwoofer Kit Klipsch R-115SW: AMPLIFIER POWER: 400 watts continuous @ &lt;2% THD / Dynamic Power*: 800 watts. Klipsch R-115SW: AMPLIFIER TYPE: BASH Digital Hybrid Klipsch R-115SW: ENCLOSURE TYPE: Bass-reflex via front-firing slot port Klipsch WA-2: Allows for powerful bass extension with fewer wires Klipsch WA-2: Hassle-free setup, Plug N Play Technology