Because of its relatively "compact" size, Heritage Series Heresy III offers the greatest degree of placement flexibility in the Heritage Series line. The Heresy, a three-way design, started out as a compact center channel speaker to accompany the Klipschorn in three-speaker stereo arrays. The Heresy III has a more powerful woofer, a bi-wire network, and a titanium diaphragm tweeter with a larger magnet assembly. The midrange compression driver also features a titanium diaphragm. All of these changes result in improved tonal balance and increased output. In fact the Heresy III is three decibels louder (96 to 99dB), improving on its already high sensitivity.