Heresy IV
First introduced in 1957, this three-way horn-loaded loudspeaker is still able to deliver the awe-inspiring Klipsch sound that fans around the world know and love. Because of its size, the Heresy offers the greatest degree of placement flexibility in the Heritage series.
Unparalleled sound quality from a relatively small speaker, the latest Heresy speaker is the first to feature a rear-port
Klipsch Heritage speakers are designed and assembled in the USA
Bass-Reflex speaker cabinet via rear-firing port for clean and controlled bass
Book-matched wood veneer makes for a perfectly matching speaker pair
Compact Three-Way Loudspeaker
The Heresy was originally introduced in 1957 with a compact three-way design utilising a 12” woofer and horn-loaded midrange and tweeter.
The Heresy IV incorporates an all new K-702 midrange compression driver, featuring a polyimide diaphragm for exceptional detail and dynamics. The K-702 midrange is mated to the K-704 Tractrix horn, providing you with a wide coverage pattern and smooth response throughout the listening area. The K-107-TI titanium diaphragm high-frequency driver features an all new wide dispersion phase plug, providing exceptionally even high-frequency dispersion throughout the listening area, making for a wider, more accurate sweet spot.
Better Than Ever
The Heresy IV has been completely re-voiced from its predecessor, utilising premium componentry in an all-new high-fidelity network — minimising electrical degradation throughout the circuitry — for truer to life sound with best in class efficiency and power handling. The new network draws from the classic three-way steep slope design of the legendary Klipschorn, La Scala and Cornwall speakers.
The strong, versatile and quality binding posts provide the capability for bi-wiring or bi-amping, while Audioquest Type 4 with Star-Quad Geometry internal wiring featuring carbon-loaded insulation, nitrogen-injected PE and solid long-grain copper conductors is used inside. These features together ensure the purest signal transfer from input, to crossover network, to drivers.
Newly Ported
For the first time in its long history, the Heresy now features a rear port, improving low-frequency extension by almost 10Hz for room-filling bass. Utilising Tractrix geometry, the all new Heresy IV ports allow 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.
Made in the USA
Klipsch has always recognised the unique and critical role of a loudspeaker’s cabinet in the sound reproduction process. From the craftsmen in Hope, AR, to the engineers in Indianapolis, IN, Klipsch have always put an extraordinary emphasis on cabinet design.
Every pair of Heritage series loudspeakers is also grain-matched, using wood veneer panels that come from the same timber. The speakers then move seamlessly together through the factory, and each finished product is inspected and labelled with sequential serial numbers for perfectly matched pairs.
