Audio issues after installing k-Lite codec

Hello, I installed a standart edition with recommended settings, and my audio settings changed, the audio is bass-boosted and generally sounds bad, I read the f.a.q, but couldn't find a solution for that problem. the only problems described there are stuttering, crackling, drop outs, and lip sync issues. Although I tried everything that f.a.q. suggests (changed audio settings manually everywhere including configuration app) but my audio didn't change at all.

My audio is not low or has some issues, it just changed from good to bad quality with bass-boost after installing the pack
It's also only a problem with downloaded videos, youtube audio is still good

Codec Tweak Tool > Audio Output
If you are mixing to Stereo, then disable "Include LFE" (which is off by default).

Otherwise there is not anything in the pack that boosts bass.

Volume normalization option in player is off by default as well. But if you changed that, try with it disabled.

Youtube generally provides mostly just stereo tracks without LFE channel.