I have been involved in some projects and worked close to some of the manufactures in off to became aware that to make an arranger module, first they have to based in a keyboard they either already have or is on the process, the second, they have to design it to fit the footprint of the motherboard of the keyboard, as an example, take a look at the SD5 keyboard and the SD3 module, is not small by any means, is the same dimensions on the control panel area to fit the motherboard size.

Perhaps in other pass times, Manufacturers like Roland (RA series), Korg (with the I series) , Wersi, Bohm and GEM made modules that not necessarily had a keyboard counterpart, like the RA90-95, the 800 was based on one of the upper models on the E series from the late 90’s and so on, the GEM Genesis module was based on it’s keyboard counterpart, etc.
One of the current exceptions is the Midjay and Midjay Plus, SD2&4.

In a marker that is “highly special” like the module arrangers, is not profitable for most of the factories to make a module, whatsoever, there still a market for them, and I am glad that Ketron has made modules since it’s beginning, with the then Solton MS5, MS40, X4, XD3, etc. and now the Ketron SD3. SD4, SD2 and Midjays, for those for fellow musicians that their main instrument is a Guitar, accordion, etc. and even for studio use, where sometimes space is an issue.
As simple as it seems, it cost a lot of money to have this done, and the most important fact is that module sales are marginal in comparison to their keyboard counterparts, what makes it not profitable.

That is my take on that, I used to gig with my Yamaha Electone EL90 (Japanese version open) and I midi that to an RA95 Roland, I really like that combination, since the Electone was midi and I found the way to get the most of both, it was a blast to play, later I changed the RA95 for the Solton X1 HD, was even better yet.


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mdorantes