Fully functional sound on both channels without buzzing or crackling. Potentiometer switches as well as lamps are all functional. With minimal signs of use, see pictures. The Yamaha CA-V2 is an integrated stereo amplifier from Yamaha's "Natural Sound" series, a popular vintage model appreciated for its classic design and sound quality.  Features and specifications This model is part of Yamaha's CA series of amplifiers from the late 70's or early 80's. Type: Integrated stereo amplifier. Design: Features a classic, retro look, often with distinctive VU (Volume Unit) meters, which is aesthetically appealing to fans of vintage audio gear. Sound quality: In keeping with Yamaha's "Natural Sound" philosophy, the amplifier is designed to reproduce the sound faithfully to the original recording. Its clear and detailed sound signature is often praised by users on the forums. Connectivity: Standard inputs for the time are expected, including a phono input for turntables, tuners and tape decks.  User reviews and opinions On vintage audio forums, users generally have a positive opinion of the Yamaha CA-V2, often comparing it to other models from the period.  Some users find that it provides excellent value for money in the used equipment market, especially if found in good condition. The amp is known for its reliability and rugged construction, a common comment for Yamaha gear from that era. One comment on Reddit points out that if the CA-V2 is at least as good as the newer R-S300, it's worth buying, indicating that it's considered a quality piece of equipment.