Yahama channel strip

Can somebody please explain the presets in Sweet spot morphing channel strip. There are “engineer” presets with various designations, like AK,OK, etc. Please explain these. Thank you

The channel strip and the reverb in this product are present in a number of other Steinberg/Yamaha interfaces. The user manuals for the later products don’t seem to include information about the FX, however. Why, I cannot say.

There is a detailed explanation of the Rev-X reverb and the Channel Strip, and the presets and settings in the user manual for the MR816csx. The FX are the same in the newer units, except for the Guitar FX, so the explanations in the MR816 user manual should apply to your hardware, as well. Just download the user manual for the MR816csx and you should have all you need.