Is the Heresy IV worth it over the Heresy III?

Yes if you want more bass. The IV adds a rear port that extends low output by about 10Hz and brings a new midrange driver and network. The III is cheaper used but stops higher in the bass.

Do I need a subwoofer with the Heresy IV?

For most music, no. It reaches a rated 48Hz, which covers bass guitar and most rock and jazz. For movies or organ and electronic music, add a subwoofer to fill below 48Hz.

What amplifier power does it need?

Very little. Its high efficiency means a 10 to 20 watt tube amp or a small class-D amp plays it loud. The 100W rating is a maximum, not a requirement.

How far from the wall should they sit?

Give the rear port at least a foot of space, and more if you can. Too close to the wall thickens the bass and muddies the midrange.

A pair of Heresy IV speakers and a removable slant riser base for each, which tilts them back slightly for floor placement. Speaker cable is not included.

When is the Heresy IV cheapest?

Prices swing by store; the best new price was $1,350 at Top Shelf Audio as of November 4, 2026. Holiday sales and open-box listings are the usual low points.

Where is the Klipsch Heresy IV Floorstanding Speaker cheapest?

At Top Shelf Audio, for $1,350.00, 58% under what the other stores charge, as of our latest check.

What do buyers say about the Klipsch Heresy IV Floorstanding Speaker?

Rated 5 out of 5 from 1 ratings.

Where can I buy the Klipsch Heresy IV Floorstanding Speaker?

10 stores we checked sell it, including Safe and Sound HQ, Top Shelf Audio, Upscale Audio, Abt Electronics & Appliances, eBay.

Klipsch Heresy IV Floorstanding Speaker

Best price now

$1,350.00at Top Shelf AudioObserved at 12:44 AM

58% under what the other stores charge

Compared across 10 stores. Prices are checked against each store and labelled with when.

Visit Top Shelf Audio

What reviewers say

Owner feedback on the Heresy IV is largely positive, with praise for its dynamics and build and some complaints about forward treble and limited deep bass.

Pros

Punchy, lifelike dynamics at low volume
Solid cabinet craftsmanship
Easy to drive with small amps

Cons

Bright, aggressive highs on some recordings
Needs a subwoofer for full-range bass
Placement fussy because of the rear port

About the Klipsch Heresy IV Floorstanding Speaker

Features:

• All-new K-702 midrange compression driver, featuring a polyimide diaphragm, for exceptional detail

• 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

• 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

• 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 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

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.

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.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.

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.