Over the years I have had this issue with many Maiden albums. Its mainly drums and vocals with a bass undercurrent. Guitars have never sounded as distinct as they should, mainly in terms of rhythm. However, I have recently discovered headphones (late to the party, I know) and the 2015 Remasters. I recently listened to 7th Son, BWN and AMOLAD. Maiden have never sounded so good. Things that used to be lost in a wash of guitar are now more audible, like strumming patterns and delicate fills. Its a revelation. It's a testament to Maiden that I like them despite never having listened to them properly, until now.In those albums the sound of bass and drums are too loud and sometimes looks there is only one guitar in the mix.
They clearly imagine the drum as a heavy sound which, as an idea, I understand and appreciate, although it naturally narrows down the soundstage. This is probably a relatively new idea, which I don't see in PoM, Powerslave or FotD albums. For this reason, I can see that, for example, the FoI of the (possible) LOTB album will have a much heavier drum sound, compared to the studio version. Just like what we heard during the concerts.with those albums I mean the albums produced by Kevin Shirley. Bass and drums beat everything else. I always said that the drums sound since Fear of the Dark are terrible and the sound is darker and confused and maybe is by the Steve hands in the production and his guidelines. It's my opinion.