Shouldn't it be crisper/cleaner/more vibrant?

The problem is probably your room, speaker setup, or acoustics.

OP "a bit brighter and cleaner." than what? What did they replace?

@patrickalston Of course the bass comes from the recording BUT speakers need to have the capability to reproduce the deep bass! My Legacies dip down to 18hz -2dB. Most of the Klipsch speakers can't do anything like that especially their heritage line that use folded horns.