M&K Sound’s new flagship speaker is the S300 SERIES, which at 15.5×13.4×13.0” is the company’s largest speaker to date. Specs include a frequency response of 60 Hz – 25 kHz, ±3dB and 500 watts of power. It weighs 40 pounds. This speaker is aimed at the high-end home audio enthusiast since it’s THX ULTRA2 certified. It’s also housed in a wooden enclosure that’s painted with a black satin finish.