This Stereo Receiver is Very Rare, Marantz only made these 1977-1981 Only 500-1000 of these Still exist! It's a 250-Watt Receiver This unit is in perfect condition and has been serviced! 100% Everything works perfectly and if you have any questions, please feel free to contact me for any additional information! (SPECS) This Marantz's is the 2nd most powerful Receiver ever made and the only one with an oscilloscope! this is deemed a Monster Receiver Designed in the USA produced in Japan! Power supply is a Toroidal Dual power Supply. Size and Weight 19"x 20"x 8" 65Lb's Output power 250 Watts per channel @ 8 ohms 350 watts per channel @ 4 ohms Frequency Response is 20 hz to 20 khz Distortion level is THD 0.03% Other features include Turbo Flow heat dissipation system Adjustable Tone turnover points! high and low filters! Super Technology Quartz lock tuning System Phase locked Loop multiplex Demodulator Noise and Hum rejection Oscilloscope 2-inch display by Hitachi This Stereo Receiver is a one of a kind Unit! And will only go up in Price! Have Seen these go for $10,000 -$12,000 and as much as $24,000 on eBay and Reverb Time to own a Legend!