The 45 watt Kenwood KA-400 integrated amp purchased in the early 1980’s for junior-high DJ’ing still works and sits in a kitchen to the stylish grimaces of its occupants. It almost went to be recycled due to the absence of a digital input needed by the AppleTV.
A cheap replacement amp with digital input and couldn’t be found new for less than $150. Instead, a $18 digital optical coax to RCA and $6 optical cable solved the problem to the chagrin of others in the house.
As the Kenwood has a switched outlet, there is no waste in power when not in use.
