Luxman CL40 tube preamp and MQ50 tube amp. Came as a set in 1983. See the pic of the brochure for all the specs. It’s a 100v Japanese version but you can use with a step down transformer for US voltage. I will include the brochure and a quality step down transformer made in Japan; work’s excellent with the audio. The preamp does have an issue in the phono section. It could just be the tube failing?? but it could be something else. I don’t have a turntable to test it out any longer (sold it) This is an amazing sounding set of audio. Wide sound stage with deep bass. This is next level equipment and was top quality when new. I can demo it for you. Selling to fund a set of speakers. Pick up in Cincinnati OH 45227.