Hi Anthony,
I've just checked on my KN7000 and when a sound has the Digital Effect included, when selected, I found no difference whether it is assigned to RT1 or RT2 - the effect is still active - as I would expect.....

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Willum
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Willum

After silence, that which comes nearest to expressing the inexpressible is Music.
Aldous Huxley
( especially when the music is played on a KN7000....)