I've just installed Ubuntu 16.04 LTS on my laptop Lenovo ThinkPad E460. Everything works fine, expect speakers, the loudness is all right, but the quality is really poor, I don't know how to explain this, it's really cracky, On Windows 10 it sounds way better. This particular model has Conexant audio card, which has drivers only for Windows. So, the question is, how to improve my speakers quality? Thanks :)
EDIT. I forgot to say, the sound quality on headphones is great, same as on Windows 10