This product is no longer available to order and will not be coming back into stock.
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Urgent order items are products that we do not normally carry on stock, but they are typically held on stock by our European suppliers. Depending on availability, we will seek to order these products quickly, when we have an enquiry. They can therefore be subject to quicker availability times than "Special Order" products.
Special Order items are those that are most often built to order. For these items, we tend to experience longer lead times as we negotiate them into the production line with our suppliers.
The Heresy was originally introduced in 1957 with a compact three-way design utilising a 12” woofer and horn-loaded midrange and tweeter.
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.
The Heresy IV has been completely re-voiced from its predecessor, utilising premium componentry in an all-new high-fidelity network — minimising 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.
The strong, versatile and quality binding posts provide the capability for bi-wiring or bi-amping, while Audioquest Type 4 with Star-Quad Geometry internal wiring featuring carbon-loaded insulation, nitrogen-injected PE and solid long-grain copper conductors is used inside. These features together ensure the purest signal transfer from input, to crossover network, to drivers.
For the first time in its long history, the Heresy now features a rear port, improving low-frequency extension by almost 10Hz for room-filling bass. Utilising 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.
Klipsch has always recognised the unique and critical role of a loudspeaker’s cabinet in the sound reproduction process. From the craftsmen in Hope, AR, to the engineers in Indianapolis, IN, Klipsch have always put an extraordinary emphasis on cabinet design.
Every pair of Heritage series loudspeakers is also grain-matched, using wood veneer panels that come from the same timber. The speakers then move seamlessly together through the factory, and each finished product is inspected and labelled with sequential serial numbers for perfectly matched pairs.
Learn more here Heritage.
Hi-Fi World Review
"This is definitely, genuinely an old- skool loudspeaker that threatens to move brains as they did on Saturday nights in the past."
Hi-Fi news Review the Klipsch Heresy IV
"It brings music to life in a style that many rivals don’t, and while it looks ol’ fashioned, it sounds thoroughly modern… and totally Klipsch."
The Klipsch Heritage range represents everything PWK aimed to achieve with his loudspeaker creations - unparalleled quality, akin to a live performance, in a meticulously crafted cabinet with a timelessly elegant aesthetic.
Both the Heresy and Forte are keen favourites of mine due to their ability to perform superbly with a wide variety of genres and a multitude of set-ups, and being able to deliver sound that is true to the PWK ideology without imposing too much of their size on their environment. The high-sensitivity rating these speakers possess means that your amplifiers have to do significantly less work to reach higher volumes and performance, and thanks to the horn-loaded tweeters you are provided with a wide soundstage that gives you a concert-like listening experience.
The Klipsch Forte has become my own choice of speaker within my home system, and both its immersive presentation and luxurious wooden finish always leave my guests speechless.
If you are interested in the Heresy IV and would like to know more, or are building a high-end system and would like some advice, reach out to one of our expert team today.
PDF | 1 Mb | Hi-Fi News Review
PDF | 11 Mb | Hi-Fi World Review
PDF | 1 Mb | Product Info Sheet
PDF | 3 Mb | User Guide
JPG | 8 Mb | Stock Photo (American Walnut)
JPG | 5 Mb | Stock Photo (Black Ash)
JPG | 3 Mb | Stock Photo (Distressed Oak)
JPG | 5 Mb | Stock Photo (Front)
JPG | 502 Kb | Stock Photo (Natural Cherry)
JPG | 4 Mb | Stock Photo (Rear)