I have some TDA7498 Audio Amplifier. It is ok. But on quitly passages (especially if someone talks or so) it has a some nasty Background noise. It disappears if there is is no audio input Level (Moderator makes a break on the end of a Phrase for example). It appears suddenly if the Moderator goes on speaking.
Listening an audiobook is impossible because of this noise.

Anyone the same experience? Any workarounds/solutions/hacks?