Amazon.com: 5.1 decoder Separator for DTS AC3,Digital Analog Audio Video System with BT-5.0 Receiver HDMI 4K 3D,Coaxial,Optical Fiber,AUX,U Disk,PC-USB Input,192Khz/24Bit for Home Theater Game Music: Electronics
TEST TOOL Ac3 Dolby Digital 5.1Ch Sound Test – Woofer and Bass Test