Force Volume in RopieeXL, max setting 100?

I had a problem with RopieeeXL with my Nuprime DAC-9SE. The max volume was very low. I manage to fix it by forcing the volume in RopieeeXL browser interface to 100. However, there’s no info anywhere which number the max volume setting is in Ropieee, is it really 100?

I assume it is, just want confirmation.