If you find one of these at a thrift store for $20, buy it. Find the manual online. Wire it up. The bass from that 100-watt subwoofer will shake your modern soundbar to pieces. Some volume knobs are worth turning yourself.
But last week, I found a ghost in my basement. Not a literal one, but a 20-page stapled booklet: The operating instructions for the Sony STR-K670P. sony str k670p manual
Buried on page 12 is the "Video Connection" diagram. It shows the yellow RCA jack. In 2024, we scoff at 480i resolution. But that manual knew something we forgot: Connection is more important than resolution. If you find one of these at a thrift store for $20, buy it
This manual demands patience .