In 1979 Roland released one of the most famous vocoders of all time, the VP-330, but some may not realise that it had a lesser known sibling; the SVC-350. The 350 is essentially the same vocoder found in the 330, but in rackmount format and without the synth parts. That said, it does have some unique features that don’t appear on the 330. The 350 went on being made quite late into the 80s and the serial of this particular unit dates to July 1985 which ties in with Roland’s move towards rack mount and module-based gear at that time.