Summary: The Klipsch groove PM20 has very good bass sound but is not quite clear as the Bose Companion 2. Purchased new the Bose is a better buy as they are priced the same. The Klipsch is a better buy used because the don't hold their value.
Summary: Klipsch speakers are famous for "fidelity" meaning a piano sounds like a piano; a trumpet sounds like a trumpet, Willie Nelson sounds like he's singing in your ear, and jazz musicians sound like they are playing in a particular room. I bought these to hear instruments and voices clearly with a sense of performance space.