Klipsch Heresy IV Floorstanding Speakers - Matched Pair (American Walnut)
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Time Left: 20 Days
Ending: 12/14 at 05:08 AM ET
New Retail Price:$3,599.98
$2,498.00 USD
| Condition | |
| Quantity | 0 |
| Payment methods | |
Contact seller after sale to pay via Express Checkout | |
| Ships from | Denver, CO, 80222 |
| Ships to | United States |
| Package dimensions | unspecified |
| Voltage | unspecified |
| Shipping carrier | UPS |
| Shipping cost | Free |
| Original accessories | Box, Manual |
| Research Pricing |
This is an open box item with no found cosmetic issues, all accessories and the original box. The box may show some wear and tear. This unit still carries its full manufacturer's warranty and has been fully tested to be sonically flawless. If there are any found issues, please contact us through the Audiogon portal or via warehousedeals@listenup.com. We will do everything we can to make it right as quickly as possible.
The Klipsch Heresy IV Floorstanding Speakers are a testament to decades of audio excellence, delivering unparalleled sound quality in a compact design. With innovative features like the all-new midrange compression driver and rear port design, these speakers offer exceptional detail and punchy low frequencies for an immersive listening experience. Proudly designed and assembled in the USA, the Heresy IV embodies superior craftsmanship and durability, making it the perfect choice for audiophiles and home theater enthusiasts alike.
Details

Discover the Legacy: Klipsch Heresy IV Floorstanding Speakers
Experience audio heritage like never before with the Klipsch Heresy IV Floorstanding Speaker. Born in 1957 as a revolutionary center channel speaker, the Heresy series continues to push sonic boundaries with its latest evolution. The Heresy IV delivers high-efficiency, dynamic range, and powerful bass in a compact three-way design, enhanced with a rear Tractrix port for deeper, cleaner low frequencies. Whether you're spinning vinyl, watching films, or streaming music, the Heresy IV's handcrafted American build and acoustic precision make it a soul-stirring centerpiece for any audio setup.
Klipsch Heresy IV Key Features:
- 10-Year Warranty: Enjoy peace of mind with an extended warranty period.
- Enhanced Midrange Driver: Introducing the all-new K-702 midrange compression driver with a polyimide diaphragm, delivering exceptional detail and dynamics.
- Rear Port Design: Experience efficient air transfer with the first-ever rear port in the Heresy series, minimizing port noise for clearer, punchier low frequencies.
- Tractrix Horn Technology: The K-702 midrange is expertly mated to the K-704 Tractrix horn, ensuring a wide coverage pattern for immersive sound.
- High-Frequency Clarity: Featuring the K-107-TI titanium diaphragm high-frequency driver with a wide dispersion phase plug, enjoy even high-frequency dispersion for a wider sweet spot.
- High Fidelity Network: Redesigned for truer-to-life sound, superior efficiency, and enhanced power handling, the new high fidelity network ensures an unparalleled audio experience.
- Custom Tractrix Ports: Engineered with custom-designed inner flares, the Tractrix ports minimize air turbulence, resulting in cleaner, more powerful bass.
- Proudly Designed & Assembled in the USA: Each speaker is meticulously crafted in the USA, reflecting Klipsch's commitment to quality and excellence.
A Little Heresy Goes a Long Way: Experience the champion of speakers, ideal for everything from vinyl enthusiasts to home theater aficionados. The Heresy IV delivers a soul-stirring audio experience that will leave you in awe.
Designed to Rock, Built to Last: Handcrafted with pride in Hope, Arkansas, for over 50 years, the Klipsch Heresy IV embodies superior craftsmanship and durability. With a legacy rooted in excellence, the Heresy IV is built to withstand the test of time.
Klipsch Heresy IV Specifications:
- Frequency Response: 48-20k +/-4dB
- Sensitivity: 99dB @ 2.83V / 1m
- Power Handling: 100W/400W (Continuous/Peak)
- 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
- Dimensions: Height: 24.81” (63.01cm), Width: 15.5” (39.37cm), Depth: 13.25” (33.66cm)
- Weight: 45lbs (20.41kg)
Klipsch Heresy IV Q&A:
- Q: What type of speaker is the Klipsch Heresy IV?
- A: The Heresy IV is a three-way floorstanding speaker with a compact design, ideal for both stereo and home theater use.
- Q: Does the Heresy IV have a rear port?
- A: Yes, it’s the first Heresy model to include a rear Tractrix port, enhancing bass response and minimizing turbulence for cleaner low frequencies.
- Q: Is it good for vinyl or home theater setups?
- A: Absolutely! Its high efficiency and detailed sound make it perfect for vinyl lovers, while its wide dynamic range suits immersive home theater environments.
- Q: What finishes are available?
- A: You can choose from Black Ash, American Walnut, and the new 2025 American Auburn real wood veneers, each handcrafted in the USA.
- Q: Where is it manufactured?
- A: The Heresy IV is proudly designed and assembled in Hope, Arkansas, USA.
- Q: What drivers are included in the speaker?
- A: It features a 12” woofer, 1.75” midrange compression driver, and 1” titanium high-frequency compression driver.
- Q: Can I bi-wire or bi-amp the speaker?
- A: Yes, it includes dual binding posts for bi-wiring or bi-amping flexibility.
- Q: How big is the speaker?
- A: It measures 24.81” H x 15.5” W x 13.25” D and weighs 45 lbs, offering powerful performance in a compact footprint.
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Return Policy
Return Window
Item can be returned within 30 days of receipt.
General Terms
Items must be returned in their original condition, with all included packing materials and no signs of use. Buyer assumes responsibility for all shipping return costs unless the item was not received as described.
Refunds
Buyer will receive a full refund in the original payment method less any shipping charges.
Special Conditions
All returns and support are only available within the continental US.


