The Heresy IV features a 1-inch Titanium LTS tweeter and a 1.75-inch polyimide midrange compression driver, both mounted to Klipsch’s signature Tractrix® horns for dynamic, highly efficient, and precise sound reproduction.
A powerful 12-inch fiber-composite cone woofer anchors the low end, now significantly enhanced by a new, rear-firing Tractrix® port – a first for the Heresy line – delivering surprisingly deep and impactful bass extension. Its high 99dB sensitivity allows it to be driven effortlessly by a wide range of amplifiers. Encased in beautiful real wood veneer and including a slanted riser base for optimal floor placement, the Heresy IV offers a detailed, wide soundstage, making it perfect for discerning audiophiles seeking a blend of heritage, performance, and versatile placement.
Features
Includes New 10-Year Warranty
-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
- K-702 midrange is mated to the K-704 Tractrix® horn for a wide coverage pattern
- K-107-TI titanium diaphragm high-frequency driver with an all-new wide
dispersion phase plug for providing exceptionally even high-frequencydispersion
- All-new high fidelity network for truer to life sound, best-in-class efficiency, and power handling
- 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.
- Available in a high-quality Satin Black Ash, Natural Cherry, Distressed Oak, or - American Walnut wood veneer finish
- Designed & assembled in the USA
Specifications
Power Handling (Cont/Peak): 100W/400W - Maximum SPL: 116dB Continuous - Nominal Impedance: 8 ohms Compatible - Crossover Frequency HF: HF: 4500Hz, MF: 850Hz - High Frequency Driver: K-107-TI 1” (2.54cm) Titanium diaphragm compression driver - Midrange: K-702 1.75” (4.45cm) polyimide diaphragm compression driver - Low Frequency Driver: K-28-E 12” (30.48cm) Fiber-composite cone woofer - Enclosure Material: MDF - Inputs: Dual binding posts / bi-wire / bi-amp - Height: 24.81” (63.01cm) - Width: 15.5” (39.37cm) - Depth: 13.25” (33.66cm) - Weight: 45lbs (20.41kg)

















