Need A Custom Rom for my Xperia Z Ultra C6833 topic

Hi I need much hell for choosing a custom Rom, and i hope the XDA Community can help me with your experience.

I have CM12 in my phone but in Lollipop is a big sound issue, and i Missing much features for Multimedia i have a list what a perfect Rom must have for me:

Stable Rom
Good Sound with no issues
No Lollipop in time because i HATE this sound issue and this is in much Lollipop Roms
Please KitKat 4.4.2-4.4.4
Much configurations
Good design
And good for Multimedia Activities

Thanks for all who helps me

Your Cortana Project :)