This is a 7.1 channel surround sound processor that has 6 HDMI inputs and 2 HDMI outputs. There are RCA and XLR outputs for each channel, along with a high quality DAC for all digital sources. This unit will NOT pass a 4k signal. If you need 4k, this isn't the product for you. If you don't care about 4k, or are looking for a high quality 2 channel pre-amp with a DAC, this unit would be a nice solution. We have the original boxes, and packaging, the only thing it doesn't come with is the Audyssey calibration microphone.