DCID I have chosen the model of CX600 supports a voltage AudioPhony 4 DBU for animation in the collection's outdoor sound is vibrant good performance in low signal. the speakers I possde yorkville FCR 250 and 110. Prvu impdance to sub in the 8 ohm amp work impdance 4 ohms the price is attractive as it offers high performance power protection is equivalent to a high range and sight in darkness and broadcasters.