I need a suggestion for a good receiver under $500. I need to have at least 2 HDMI input that capable of upscaling. It does not have to be a 7.1. I am confused with all this different term for HDMI, switching, repeater, passthrough. I need the receiver to be able to receive a bitstream audio signal and decode it and send it to my speaker. I also need the receiver to be able to do multichannel PCM. thanks.