Black Sabbath's Born Again. Amazing album. As a huge fan of Deep Purple and Black Sabbath it's actually an all time favorite.
The production is so bad that most people prefer the demo versions, that also sound terrible, to the actual album.
Any of the newer Iron Maiden albums where Steve Harris has at some point told Kevin Shirley, "I like it like it sounds right now, don't do anything else, this is going to be the mix we release". That started with Dance of Death, that was never meant to be the final mix. It was as unfinished as the terrible album cover, which was also a rough unfinished version.
I fucking adore Steve Harris. He's my idol. He's also a 50+ year old man who has been playing loud stages his entire life and obviously has hearing damage. Every album from Dance of Death on has suffered from him deciding at some point before the album is finished he likes how it sounds and it should be released as is.