Description Buy Yamaha R-V503 5.1 Channel Natural Sound Dolby AV Receiver (USED) online from PCTRUST Computer Sales & Service in Guelph, Ontario. In-store pick-up only. SKU: R-V503 Categories: All Products, Audio TV & Home Theatre, AV Receivers, Home Audio, Theatre & Accessories, Receivers, Used, Yamaha Tags: AV receiver, in-store pick-up only, used, Yamaha