I have a 'as new' Edirol M-10DX. Wasn't a good fit for my organ as I felt it sounded too 'digital' when paired with my EV 250's. I ended up using an old 16ch Samson (tube) Line mixer that is clean and sounds much more 'organic' (to me). It's available and anyone that wants it can have it cheap (otherwise I'll just give it to my grandson for his budding 'studio').
chas
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"Faith means not wanting to know what is true." [Nietzsche]