Working with RGBA in Volume Rendering

I think there is an issue with the independent component’s (specifically index 1 and 2), as the Scalar Opacity Mapping range does not go beyond 1024, it appears hardcoded limits (I can’t enter a higher value manually either). It doesn’t happen for component 0, that one automatically gets the full range of intensities in the data. As a result by rendering is blocky, since I need values around 1300 range to remove the noise.