- All-new K-702 midrange compression driver, featuring a polyimide diaphragm, for exceptional detail
- For the first time, the Heresy IV features a rear port for the most efficient, fastest air transfer in their class, which reduces port noise for punchier low frequencies
- Klipsch Tractrix ports have custom designed inner flares that help reduce air turbulence entering the port. Less turbulent air helps reduce port noise for cleaner, more powerful bass
- Designed & assembled in the USA
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. The Heresy IV offers unparalleled sound quality from a relatively small speaker.
