Heresy IV vs Forte IV
The Forte IV matches the Heresy IV on sensitivity (99 dB), impedance (8Ω), high-frequency extension (20 kHz), and woofer (12").
Both turn up in the same documented systems.
AI-generated product photo — not official manufacturer imagery.
LoudspeakersFloorstanding Speakers
Estimated price (community-sourced)
$2,700 - $3,600
Around — community and catalog average, updates slowly
About the Heresy IV
The Klipsch Heresy IV is a floorstanding speaker that offers a blend of traditional design with modern enhancements. It features a new K-702 midrange compression driver with a polyimide diaphragm, paired with the K-704 Tractrix horn for wide coverage. The high-frequency driver is a K-107-TI titanium diaphragm model with a new wide dispersion phase plug, enhancing high-frequency dispersion. The speaker includes a rear port for efficient air transfer, reducing port noise and improving bass performance. It is available in several finishes, including Distressed Oak, American Walnut, and Satin Black Ash. The Heresy IV is designed and assembled in the USA and comes with a 10-year warranty.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 99 dB SPL @ 1W/1m
- Impedance
- 8Ω
- Frequency Response
- 48 Hz - 20 kHz
Speaker Design
Driver configuration and enclosure design
- Configuration
- 3-way
- Driver Type
- dynamic
- Driver Size
- 12"
- Driver Count
- 3
- Crossover Frequency
- 850 Hz
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 394 × 629 × 337 mm (W × H × D)
- Weight
- 20.41 kg (45 lbs)
Key Specifications
Sensitivity: 99 dB
Impedance: 8Ω
Frequency: 48-20000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions