Brand: Audio research
I can provide general information about the audio research ca-50 amplifier. The ca-50 is a high-end stereo amplifier manufactured by audio research, a company known for producing exceptional audio equipment. The ca-50 features solid-state circuitry and has a power output of 50 watts per channel into 8 ohms. It also has a range of input options, including rca, balanced xlr, and bnc connections. The amp's toroidal power transformer and custom-designed output transformers contribute to its rich and detailed sound, making it a popular choice among audiophiles who prioritize high-fidelity audio reproduction. Overall, the ca-50 is a well-renowned amplifier known for its clean, powerful, and musical sound signature.