For rock bass work, see also Slade's Old New Borrowed and Blue and Slayed?
UK TBers will scratch their heads at the suggestion that these Slade albums are at all "underknown." But, while huge in the UK and elsewhere, most state-side listeners know Slade through Quiet Riot's cover of their "Cum on Feel the Noize," maybe "Run Run Away," and little else.
Hear 'em at their peak for IMO the essence of simple, effective hard-rock: great tunes, great vocals, and great bass work by the mighty Jim Lea.
Damn straight.
My vote goes for Slade Alive!, easily one of the top 5 live albums ever. Jim Lea is just incredible on this! 'Hear Me Calling' pretty much invents sludge as far as I'm concerned - the ending is like being hit with a sledgehammer again and again...

Actually, although everybody over here and his Nan knows who Slade are, 99% have them pegged as a glam 'novelty' act, with Merry Xmas Everybody the be all and end all. Slade Alive! puts a stop to that way of thinking.