Roland JP-4 IO Mod

For ages, I’ve badly wanted a MIDI mod for my JP-4, but the urge hasn’t been quite Kenton-bad. Needless to say, when I came across the Roland Jupiter-4 IO mod at the Jupiter forum sometime this february I was pretty amazed.. and shortly after, a kit in the mail! Kinda difficult to say no to a cheaper kit with better features.. ;)

Installation was a breeze and the added functionalities also gave me a possibility to receive a bit of RTFM from Laszlo (the creator of IO mod kit). Contrary to the installation instructions, I chose to drill holes for the MIDI connectors where the audio jacks are. There’s a relatively pointless warning plate right above the jacks and just so as it happens, the plate is about the size of two MIDI connectors. If the mod had to be removed, the drilled holes can be then covered with the original warning plate. Anyway, for the connectors to be installed like this, their cables had to be replaced to match the new location.

Boards and cabling installed

MIDI connectors

Not much else to say about this kit than recommend getting one if you have a JP-4 :)

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2 responses to “Roland JP-4 IO Mod”

  1. mark says :

    curious. how have you been finding the io mod so far? worth the leap?
    i hear some problems here and there as well with them. would love to hear your opinion. ciao

    • arto says :

      What kind of problems have you heard of?

      I must admit I haven’t utilized the added functionality (LFO etc.) much, but I think the kit is well worth the money just alone for the generic MIDI features.

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