Unknown condition makes the price worth verifying, but at US$2,495 this is a strong deal against the supplied market: it sits below the 25th-percentile asking price of US$2,575, well under the US$2,687 median, and is US$192 below that lower-quartile mark. If it is fully functional and complete, this looks like a genuine buying opportunity rather than merely a fair listing.
The RS520 remains an unusually capable all-in-one: a powerful 250-watt-per-channel amplifier, high-resolution DAC, Roon-ready network streaming, broad digital connectivity, HDMI eARC, and its excellent large touchscreen. It can replace several separate boxes while still driving demanding speakers convincingly. Before committing, confirm the screen, streaming software, amplifier channels, remote, power cable, and original accessories; with unknown condition, those checks matter, but a clean, working example at US$2,495 is hard to dismiss.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.