I have an issue with a new MS20 mini and it relates to the *magnitude* of Key Thumps and the variability in the field of certain units, I also have a badly calibrated unit in terms of voltages. The two issues may relate to one another.
Now, I know this is a design related artefact, but there is strong evidence to suggest huge variability in the magnitude of this Thump - very prevalent on Key Up
Two experienced, but not impartial testers, have shown very different results to the same test performed meticulously
I *really* need one or two more tests (very very simple) performed to establish if my unit is just one of the 'every other' units which does not get re-tested before despatch.
Perhaps, in helping out with this test you can be better informed as to whether you could benefit from a calibration too, possibly courtesy of Korg.
I've set up a test to illuminate the issue, the test has to be performed to the letter to be useful - i'll post the comparisons later
------ TEST
The clicking is most pronounced on key up
Any test conducted should be holding key down for a second or so then waiting a second or so
Do firstly with VCO1 at maximum and then at minimum in the same take - ensuring that no clipping is present to begin with
The headphone out will come through hotter on a field recorder input, but the same behaviour is present when the test is performed on signal out or phones out after normalisation - ie it’s not significant in terms of highlighting the issue
For simplicity here - i’d ask that it’s conducted through the headphones, or both, but do not tinker with or edit the files - Drop recording level to avoid clipping
File attached - should be very simple/quick/clear - important bits are highlighted - everything is vanilla except sustain / release
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i am happy to discuss this, it's not a critique of the design, it's a query about the magnitude of the issue in my particular box (it is excessive and quite different from one other unit, so stats are not great to draw conclusions) but a reply to the test would be most welcome - and could be useful for you too
tia
Cheers
ps - this is one of two - the other one is just about calibration - i provided Korg with the voltages, but they would not comment, but asked me to return for calibration tests - i just want to be able to compare and perhaps understand why the VCA issue is so extreme for me[/img]
