The Klipsch R-110WSW Reference Premiere wireless subwoofer connects wirelessly to your HD Control Center and adds clean, deep bass, to your Reference Premiere Wireless system. Ideal for high performance systems, this subwoofer provides clean, deep bass, letting you hear and feel your music and movies. 10" spun-copper Cerametallic woofer All-digital amplifier delivers 500 watts of dynamic power Front-firing slot port. Award winning Reference Premiere HD Wireless speakers and HD Control Center are a combination of the acclaimed Reference Premiere acoustics platform with lossless wireless audio transmission. Through the use of state of the art WiSA technology, not a single detail is lost from the source to the speaker.