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Unless I missed it - what is the polyphony (128?) less ? or “dynamic” (which means you’ll know limit when/if you hit it) ?



I never found a published spec from Ketron that listed polyphony specifically. Doesn't mean there might not be one somewhere, I just didn't find one. However, I've never run out of notes, not with huge sequences, not on live gigs with hands full of piano, either (grin).

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Also it says (TWICE) that it has 32 channels but only one MidI in? I know how multi-channels work on device with USB (e.g., SC8850) but how do you access more than 16 channels using one MIDI port? The manual says nothing about this neither does the Keyboard review article but twice on the product specs and description it mentions 32 channels “Up to 32 MIDI channels can be controlled…”



Note-On and Note-Off data can receive SYSEX MIDI channel data at the beginning of the string. Thus you can have MIDI channels one thru thirty two. This does work from within Powertracks and therefore assumably RealBand too, which is the same basic engine shared by each.

The SD4, of course, has two separated MIDI synths inside, one is GM with upper banks available and the other is the "Solo" synth, meant for use in the target accompaniment keyboard that the SD4 is taken from as the RH keyboard. The Solo sounds are actually duplicated in the GM banks, maybe in some upper banks but I have found them all in there, too. So there aren't really that many "new" voices to be found in the SD4, BUT -- the Solo voices are customizable as to layers and effects and are savable to a user bank of 64 for instant recall. I find that more useful in live gigging personally, but the studio cat may find a use for them also.


--Mac

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