The CN 730 Hi Fi) was a Hi-Fi recorder made by Grundig Corporation and available in 1975/76 It was designed for the use with high ranking systems and conforming to the DIN 45 500. It had a wide frequency response when used with chromium dioxide cassettes and low wow and flutter. A big advantage of this device is the Dolby B system and additional noise restriction circuits. It was one of the first to have a fully automatic stop mechanism, in which the unit automatically stop at the end of the tape, also in fast forward and rewind mode. It has an interesting electronic design, where the amplifier consists of four modules, easy to remove. In good and working condition. Shipping via tracked courier.