
Later grey front version 4 of the Bel 16 track noise reduction system for analogue multi-track tape recorders.
Simultaneous encode / de-code system to remove undesirable tape hiss from 2" tape running at 15 inches per second
A very popular modular system in it's day, with qtr inch jack connection on the rear panel.
All in good fully working condition, as pictured.
E&oe
L338