Shinerman has it right. I personally take a variety of music. My taste is rather broad so here goes.
Miles Davis Kind Of Blue
Jacintha Here's To Ben
Stravinsky The Firebird Suite 1919 version (Telarc)
Groove Colective We The People
Hollie Cole Trio
Tim Weisberg Under Cover
These are all well recorded with a fairly broad fq range all have great bass.
Go on and bite the bullet and get the Maggy's. If you try hard enough you can penetrate any speakers armor.