We love the K Series of PA speakers from QSC. They sound hifi while their competitors sound drab. The 10 inch model is great for a bit of extra bass. The QSC K Series is quite simply the new standard in lightweight powered loudspeaker systems. Under the direction of Pat Quilter, QSC's team of amplifier engineers have created a new standard in Class D power modules unparalleled in the industry. Next, breaking from the traditional loudspeaker paradigm, every model is fitted with the identical 1.75" HF device (full-range models) and woofers of the same high quality for unparalleled performance, regardless of speaker size.