After having read some of the other reviews here, as well as the advertised "60Hz - 18kHz" spec on Thomann's page, I bought one of these - but to my disappointment there is no hearable bass at 60 Hz. You lose response at about ~90 - 100Hz, making this speaker adequate only for voices, and barely acoustic guitar.
If you're playing the piano/keyboard or something like that, you're going to miss the bass. (Unless you add a subwoofer.)