Marantz FM stereo receiver model Eighteen. From 1968 - 1972. Rated at 40 @ 8 or 4 ohms, 20 @ 16 ohms. Features, one tape in/output, two aux inputs, two phono inputs, mono left/right, audio display, high blend on/off, high and low filters on/off, muting on/off, speaker selectors - off - main - both - remote, selector - phono - FM - tape - aux one - aux two, separate bass and treble controls, and a tuning meter. Neat stereo receiver!