The Yamaha CA-500 is a stereo amplifier produced as part of Yamaha's CA series during the late 1970s. This amplifier features a clean and minimalistic design with a front panel that includes various knobs for controlling volume, balance, tone controls, and input selection. The CA-500 is known for its solid build quality, with a metal chassis providing durability and reducing unwanted vibrations. Its power output is rated at 50 watts per channel into 8 ohms, which can accommodate a variety of speakers while delivering dynamic sound performance. There are options for connecting various audio sources through multiple inputs, including phono, tape, and auxiliary. The design also includes a headphone output for private listening. In terms of user experience, the CA-500 is appreciated for its smooth, balanced sound profile. The amplifier incorporates protection circuits to safeguard against overload and overheating, enhancing its reliability over time.