With a distortion-free tuner, slot-loaded player for CD, MP3 and WMA discs, front and rear USB ports and no fewer than eight auxiliary audio inputs including Phono MM, there are few audio sources the “MAS 100” can’t handle. But its audio output distinguishes the “MAS 100”. Advanced flat-panel bass drivers with flat front baffles virtually eliminate unwanted refractions within the speakers for clearer, more natural sound. Proprietary MMD® tweeters with integral waveguides greatly improve off-axis performance, delivering accurate highs over a wide area. This is a compact music system in the true Harman Kardon tradition.