Your reasoning is poor fam. I literally have used this rom since initial april and have replied on this thread regarding "low sound". When I say that I'm getting " normal" output, I MEAN "normal" output.It's more likely you don't notice the issue. I also use this rom with no audio kernel tweaks. You can easily tell if there is a problem by playing some music. Just play it a bit, pause, wait a few seconds and press play again. I'm sure you will notice normal volume (loud) at first which quickly reduces to be below nominal. Do it a few times. Or you can play a notification few times in row to see how sound recedes. Or you can check how the same notification sounds like on a another device.
Although, it seems that this'll be temporary till I do one more reboot.