CS-600 is an elegant Karaoke speaker with black MDF (medium density fiberboard) wood gloss layered finish. It has good sound quality and artistic beauty. This speaker was designed by using the principle that softer wood provides smoother and clearer audio output like a piano. CS-600 is the first speaker of the piano-wood series for Better Music Builder. The piano-wood series is especially designed for customers with a good sense of art and music.