I am the Canadian Rep for Ayon Audio products, and Canada's Premier dealer. You indeed can run an outboard phono input into the CD-5' onboard DAC which will improve the sonics of your turntable exponentially. I have a customer who is doing just this and gushes that he cannot believe the sonic improvement it brings, I wish more people would utilize the full facilities of this product. If you wish to ask Ayon directly, ask me, and please visit the Canadian Ayon website often.
www.ayonaudiocanada.com
greg@ayonaudiocanada.com