JVC 4DD-5 -- JVC High Fidelity Cat 2
The 4DD-5 was a disc demodulator for discrete 4-channel records manufactured by the JVC Corporation. It had a built-in detector circuit that could automatically switch to CD-4 decoding mode when the material was present in the audio. This brochure shows some basic information and specifications of interest. Today it is highly sought after by record users, and is a must have gadget for the hi-fi rack.