The JV-1000 is essentially a combination of the classic MC 50MkII sequencer, and the much recognised JV-80. Things have been tweaked here and there, but the overall sound is still the same. There are a lot of ways to expand and upgrade the JV-1000, nevertheless it's a bit dated today both in terms of design and use.
Comments About the Sounds:
The synthesizer part in the JV-1000 is very similar to the JV-80 but has a few extra waveforms added (a.o. grand piano). Truly the same excellent quality as in the JV-80.
(Thanks to Kristian Holger Pedersen-Reng for this info.)
and Darrell L. Wiggins for the pic