There are a couple of really nice, well priced midi mods available for the the JP4 that are surprisingly easy to fit (I was able to install mine and I'm usually terrible at this kind of thing).edfunction wrote:the big downside (for me at least) is that i would have to play the keyboard too much, no midi for a poly is a pain for non keyboard heroes. could be different for you.
The Io mod has more features (more patch storage, extra LFO) but costs more:
And the CHD Elekroservis mod (the one I have):
The JP4 is one of my favorite synths ever ever, it's looks so simple but it has a massive tonal range. The oscillators are huge sounding, and with the sub osc and ensemble you have a big old meat sausage in your hands.