It's an excellent example not just because it's a really good amp, but also because in the period that this blog loves, companies like Pioneer made their equipment lines this way top to bottom. The engineering is solid. The manufacturing standards are very high, and the design is elegant and considered. The SA-8500 was second from the top of Pioneers integrated line in 1975. It's a pleasure to use. It provides a deluxe user experience because it was designed to.