Marantz CD-400B "Quad" Disc Demodulator, Rare Collectable!

This Marantz CD-400B was an essential accessory for quadraphonic enthusiasts in the 1970s.  The unit was specifically designed to decode and playback all four channels for CD-4 enhanced records (You may recall, some referred to LPs as "discs" before the dawn of Compact Discs!) Of course, being Marantz, this piece was built extremely well and designed to not only extract the CD-4 programs discrete four channels to ultimate channel separation, but also incorporated a proprietary noise reduction filter for enhanced record playback and reduced channel crosstalk.  

The CD-400B was also capable of being used with non-CD-4 programs, bringing even better and cleaner playback to those program materials as well.

A fantastic little piece, with historic interest.  A really nice collectable for the Marantz enthusiast as well. 

$299 (plus applicable shipping and/or MA sales tax)