Klipsch US

Heresy IV

Floorstanding Speaker

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.

Black Ash Natural Cherry Walnut Distressed Oak

Find a Certified Heritage Dealer Near You

Heresy IV Acoustic Updates

Heresy IV Cosmetic Updates

Klipsch Heresy IV close up
Klipsch Heresy IV close up

A Little Heresy is Good for the Soul

The Heresy IV is quite possibly the speaker champion of the world.

Whether it's for your burgeoning vinyl collection, home theater or whatever, the Heresy IV will knock your socks off.

Gplogo white

Even if you never turn them on, they are the first thing someone notices in a room — and when you do turn them on, their clean, crisp sound can impress even the most discerning speaker aficionados.

-Gear Patrol

Heresy Made in USA Hope AR 2000x1125
Heresy Made in USA Hope AR 2000x1125

Designed & Assembled in the USA. Made to Rock.

With cabinetry that is proudly handcrafted in Hope, Arkansas for over 50 years, the Klipsch Heresy IV speaker is a testament to the quality Klipsch demands from each and every of its audio products.

Here's to 50 more years of Heresy.

PWK Examining 2000x1125
PWK Examining 2000x1125

They Said He Couldn't

But He Did It Anyway

When Paul W. Klipsch was developing a smaller speaker for use between two Klipschorns, an acquaintance declared that he couldn't possibly introduce it to the public because it was in direct violation of the corner horn principles, and amounted to acoustic heresy.

"The hell I can't," Mr. Klipsch said. "And that's exactly what I'm going to call it!"

A year later the Klipsch Heresy loudspeaker was introduced and, ironically, it became a bestseller in the church sound reinforcement market.

Klipsch Heresy I Vstereowithmotorcycle
Klipsch Heresy I Vstereowithmotorcycle

WHAT'S NEW?

A REAR PORT

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.

In addition to delivering smooth, dynamic and low distortion sound, the Heresy IV is available in a high-quality Natural Cherry, Distressed Oak, American Walnut, or Satin Black Ash wood veneer finish. A slant riser base is included for floor placement that can be removed for cabinet installations.

Please note: Klipsch Heritage Series products are built to order, with cabinets handmade in the U.S. at our Hope, Ark. manufacturing facility. Choose "standard shipping" and allow up to 8 weeks for turnaround time.

Klipsch Legacy PWK
Klipsch Legacy PWK

The Great American Speaker Company

Our founder, Paul W. Klipsch, was an engineer, inventor, madman and certified genius. He spent his life trying to bring the world better sound. Since 1946, we have carried on our founder's passion for delivering the best home audio experience possible.

You're not buying a speaker - you're buying a piece of American audio history built on more than 70 years of badass acoustic technology.

Features

Key Product 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

Documents

Spec Sheet

For more technical detail, download the Spec Sheet here: Heresy IV Spec Sheet v04 .

Product Manual

Download the Product Manual for Heresy IV Floorstanding Speaker here: Heresy 2019 Manual v01 .