Klipsch Heresy IV

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.

 

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-frequency dispersion

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

 

A LITTLE HERESY IS GOOD FOR THE SOUL

Because of its size, the Heresy offers the greatest degree of placement flexibility in the Heritage series. First introduced in 1957, this three-way horn-loaded loudspeaker is still able to deliver the awe-inspiring Klipsch sound that our fans around the world know and love.

DESIGNED AND MADE IN THE USA

USING DOMESTIC AND IMPORTED COMPONENTS

The Klipsch Heresy IV speaker is a testament to the quality that Klipsch demands from each and every one of its audio products. Remember great sound? We do, too. The Klipsch Heresy enclosure is made in the USA, by proud craftsmen in Hope, Arkansas, just like Paul W. Klipsch (PWK) intended.

 

FEATURES

COMPACT, THREE-WAY LOUDSPEAKER

The Heresy was originally introduced in 1957 with a compact three-way design utilizing a 12” woofer and horn-loaded midrange and tweeter. In 2006, the Heresy III was upgraded with a more powerful woofer and a bi-wire network as well as midrange and tweeter compression drivers, and features a titanium diaphragm for smooth and accurate definition.

 

DRIVERS

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.

 

NETWORK

The Heresy IV has been completely revoiced from its predecessor, utilizing premium componentry in an all new high-fidelity network — minimizing 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.

 

TRACTRIX® PORTS

For the first time in its long legacy, the Heresy now features a rear port – improving low frequency extension by almost 10Hz, for room filling bass. Utilizing 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.

 

BI-AMP INPUT PANEL AND BINDING POSTS

The Heresy’s premium, aluminum input panel accommodates large, high-quality speaker cables. Strong, versatile and quality binding posts provide the capability for bi-wiring or bi-amping. The quality continues with Audioquest Type 4 with Star-Quad Geometry internal wiring featuring carbon-loaded insulation, nitrogen-injected PE and solid long-grain copper conductors ensuring the purest signal transfer from input cup to crossover network to drivers.

 

SPECIFICATIONS

FREQUENCY RESPONSE (+/- 4 dB)  48-20k +/-4dB

SENSITIVITY 99dB @ 2.83V / 1m

POWER HANDLING (CONT/PEAK) 100W/400W

MAXIMUM SPL 116dB Continuous

NOMINAL IMPEDANCE 8 ohms Compatible

CROSSOVER FREQUENCY 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)