Marantz AM/FM 4 channel stereo receiver model 4300. From the year 1972 to 1978. Sold for $899.95 in 1974. RMS Watts Per Channel 40x4 100x2. Features, two tape in/outputs front and rear, one phono input, one aux/CD-4 input, rear CD-4/aux input, Dolby system meter, play cal L or R selectors, record level L or R, 400hz tone, high filter, loudness on/off, FM muting, speakers, main or remote, modes, dimension, Dolby Nr selectors, for record play and FM, Selector - AM - FM - phono - CD-4/aux - tape one - tape two, headphones front and rear, and both signal and tuning meters, and many more features. Neat quadraphonic stereo receiver!