6922 have higher gain than 12AU7.
If I recall correctly, the 401HR manual or the Moscode website has specific info about tube gain.
Not sure if mixing the two types will result in a satisfactory sound since they create different presentations in the 401HR.
If I recall correctly, the 401HR manual or the Moscode website has specific info about tube gain.
Not sure if mixing the two types will result in a satisfactory sound since they create different presentations in the 401HR.