I agree with the OP about being able to set the db level manually. 89db is too quiet.
I ran my MP3's thru MP3Gain and almost all show clipping. But, setting at 89db is way too quiet. I don't fully understand all this stuff, either.
Might be nice to have some feedback, like MP3Gain does - Like a list of tracks and their levels.
I'd just use MP3Gain, but I have lots of FLAC files.
Thanks
PS
Under Controls, there are (4) items: Replay Gain, Smart Gain, Track & Album Gain. What is Smart Gain? Do these work on all files that are played or only on streams?