LINEAR ENC-KIT-M Encore 4-Source, 4-Zone Digital Audio Distribution System Kit Standard 4-source, 4-zone systemtoexpandable to 32 zones Integrated high-efficiency, 40W per channel into 6 speakers / 30W per channel into 8 speakers Easy to install new or as a retrofit, requiring only one CAT-5 run per keypad No content loss or distortion from source to keypad with DIGI-5 sound technology 2-year limited warranty