First introduced in 1957, the Heresy, a three-way design, started out as a compact center channel speaker to accompany the Klipschorn in three-speaker stereo arrays. In 1985, Klipsch made some changes and improvements to this model and re-released it as the Heresy II. Today, Klipsch has given the new Heresy III a bi-wire network, titanium diaphragm tweeter and larger magnet assembly. The midrange has moved from a phenolic to a titanium diaphragm.

All of these changes result in improved tonal balance and increased output. In fact the Heresy III is two decibels louder (96 to 98dB), improving on its already high sensitivity.

In addition to delivering smooth, dynamic and low distortion sound, the Heresy III is available in a high-quality black ash wood veneer finish. It also ships with a slant riser that can be removed for cabinet installations. Because of its relatively compact size, this model offers the greatest degree of placement flexibility in the Heritage Series line.