First introduced in late-1971, this Panasonic RE-7750 receiver is from their "Series 44" line of 4-channel / quadraphonic / quadrasonic receivers and players. Panasonic named this unit "The Whitney", and it originally retailed for $199.99. It is an actual 4-channel receiver, not a pseudo-surround stereo. It plays discrete, matrix, enhanced stereo, ordinary stereo, even monoraural (per an actual Panasonic print ad from 1972). It has four separate volume slider knobs for left/right front & rear speakers, and has dedicated 4-channel rca inputs on the rear. It also has a phono input and 2-channel stereo output. Classic faux walnut wood grain finish, chrome accent, and green lighted tuning dial give it that unmistakable vintage Panasonic look. Entire unit measures 17 1/2 inches x 9 1/2 inches x 4 3/8 inches. It is in excellent cosmetic and working condition. The tuner works great and all inputs, outputs, and speaker jacks are tested and working. The wood case has a crack on top and is missing a knob.