This speaker features a 15" woofer with high-temperature voice coils to ensure powerful bass. The 4" wide-dispersion midrange driver and the 2-1/2" ferrofluid-cooled tweeter deliver quality audio.
Sound is really good, not great. At louder volumes I have heard/felt some vibration. These are larger than I expected - they are used in a large bedroom. I have a pair of Bowers and Wilkins in my family room that cost a lot more money - but these are not far behind.