I went ahead and installed the original 3.2a O.S. back on to my x1. The manual bass is back on, Samer and Gearge, you are both write in your findings, Like Samer said I would rather have the manual Bass than the Half fill in step and sing myself ..
I hope ketron will make that switch and keep the manual bass feature, in the new operating System. ( counting on you AJ, )

Thanks

GP.