Marantz AM/FM stereo receiver model 2240B. From the year 1976. Rated at 40 at 8 ohms, 45 at 4 ohms, 20 at 16 ohms. Features, one phono input, two tape in/outputs, one auxiliary input, Dolby FM, stereo mono switch, loudness on/off, muting, high and low filters, main and remote speaker selectors, selectors - AM - FM - phono - aux - tape one - tape two, separate bass treble and mid controls, and both tuning and signal meters.