Heresy II vs KLF-20
The KLF-20's sensitivity is 100 dB against the Heresy II's 97 dB. Both share impedance (8Ω), high-frequency extension (20 kHz), and ways (3).
Both turn up in the same documented systems.
AI-generated product photo — not official manufacturer imagery.
LoudspeakersBookshelf SpeakersFloorstanding SpeakersDiscontinued
About the Heresy II
The Klipsch Heresy mkII is a 3-way, 3-driver loudspeaker system designed for high efficiency and dynamic sound reproduction. It features a 12-inch fiber-composite cone woofer (K-24-K), a 1.75-inch phenolic diaphragm compression midrange driver (K-53-K) with an exponential horn, and a 1-inch polyetherimide diaphragm compression tweeter (K-76-K). The enclosure is sealed and finished in wood veneer, measuring 21-3/8" x 15-1/2" x 13-1/4" and weighing 37 lbs (16.8 kg). It has a frequency response of 50 Hz to 20 kHz (±3 dB), sensitivity of 97 dB at 1 watt/1 meter, nominal impedance of 8 ohms, and power handling of 100 watts continuous (400 watts peak). The crossover frequencies are approximately 700 Hz and 6000 Hz. The Heresy mkII is known for its lively sound and requires as little as 10 watts to perform well. It is a sealed cabinet design with 5-way binding posts for speaker input. This model is no longer in production and is considered a vintage classic.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 97 dB SPL @ 1W/1m
- Impedance
- 8Ω
- Frequency Response
- 50 Hz - 20 kHz
- Power Handling
- 100W
- Min. Amplifier Power
- 20W
- Max. Amplifier Power
- 100W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 3-way
- Driver Type
- dynamic
- Driver Size
- 12"
- Driver Count
- 3
- Enclosure Type
- sealed
- Crossover Frequency
- 6.0 kHz
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 394 × 543 × 337 mm (W × H × D)
- Weight
- 16.8 kg (37 lbs)
Key Specifications
Sensitivity: 97 dB
Impedance: 8Ω
Frequency: 50-20000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions