{"product_id":"klipsch-heresy-iv","title":"Klipsch Heresy IV","description":"\u003ch3\u003eKlipsch Heresy IV – Compact Heritage Horn-Loaded Floor-Standing Speaker\u003c\/h3\u003e\n\u003cp\u003eThe Klipsch Heresy IV revives a vintage classic in a more compact package, delivering bold, dynamic sound through horn-loaded drivers and a powerful 12″ woofer. With modern acoustic updates and timeless American craftsmanship, it’s ideal for both music lovers and home cinema systems that demand real presence with heritage style.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorn-loaded compression drivers:\u003c\/strong\u003e A polyimide-diaphragm K-702 midrange on a Tractrix horn and a titanium-diaphragm K-107-TI tweeter with a wide-dispersion phase plug ensure precise, spacious imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRevoiced crossover network:\u003c\/strong\u003e Premium components and AudioQuest wiring minimise signal loss and support high efficiency and detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew Tractrix rear port:\u003c\/strong\u003e This first-in-series rear port enhances bass extension by nearly 10 Hz, with flared design reducing port noise for tighter, punchier lows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeritage build quality:\u003c\/strong\u003e USA-assembled cabinet with book-matched wood veneer, bi-wire\/bi-amp capable binding posts, and a slanted riser base that’s removable for shelf placement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCustomer Benefits\u003c\/h4\u003e\n\u003cp\u003eKlipsch Heresy IV fills rooms with lively, airy sound—its efficient design means it plays loud and detailed even with modest amplification. Its vintage aesthetic and solid craftsmanship make it both a sonic centerpiece and a visual statement.\u003c\/p\u003e\n\u003ch4\u003eQuick Specs\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitivity:\u003c\/strong\u003e 99 dB (2.83 V\/1 m)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Handling:\u003c\/strong\u003e 100 W continuous \/ 400 W peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 48 Hz – 20 kHz (±4 dB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance:\u003c\/strong\u003e 8 Ω nominal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrossover Frequencies:\u003c\/strong\u003e Mid: 850 Hz, Tweeter: 4 500 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrivers:\u003c\/strong\u003e 12″ woofer; 4.45 cm midrange; 2.54 cm tweeter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e MDF with real wood veneer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e Dual binding posts (bi-wire\/bi-amp ready)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W × H × D):\u003c\/strong\u003e 39.4 × 63.0 × 33.7 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 20.4 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhat’s in the Box\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePair of Klipsch Heresy IV speakers\u003c\/li\u003e\n\u003cli\u003eSlanted riser base (removable)\u003c\/li\u003e\n\u003cli\u003eRemovable speaker grilles\u003c\/li\u003e\n\u003cli\u003eUser guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eUse Cases \/ Ideal For\u003c\/h4\u003e\n\u003cp\u003ePerfect as the main stereo speakers for mid-sized listening rooms or as front channels in compact home theaters. Ideal for vinyl enthusiasts, audiophiles, and anyone who appreciates effortless dynamic range with a nod to classic design.\u003c\/p\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eHigh sensitivity pairs well with tube or low-power amps, while bi-wire\/bi-amp options open flexibility. Works beautifully with both analog and modern digital sources, and fits into vintage and contemporary setups alike.\u003c\/p\u003e\n\u003ch4\u003ePros \u0026amp; Cons\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e✅ Pros:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRemarkably efficient—delivers huge sound with modest amplification\u003c\/li\u003e\n\u003cli\u003eWide, accurate soundstage and articulate bass response\u003c\/li\u003e\n\u003cli\u003eTimeless design with premium build and finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Cons:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge and heavy—needs spacious placement and strong support\u003c\/li\u003e\n\u003cli\u003eHigh sensitivity can reveal amplifier hiss or poor recordings\u003c\/li\u003e\n\u003cli\u003eHorn coloration may need gentle EQ tuning in certain rooms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Klipsch Heresy IV blends heritage sound, modern acoustic design, and American craftsmanship—perfect for listeners who want character, clarity, and power without compromise.\u003c\/p\u003e","brand":"Klipsch","offers":[{"title":"Black Ash","offer_id":54449464803596,"sku":"K-HERESY-IV-BL","price":4999.0,"currency_code":"EUR","in_stock":true},{"title":"Red Oak","offer_id":54449464836364,"sku":"K-HERESY-IV-RED","price":4999.0,"currency_code":"EUR","in_stock":true},{"title":"American Walnut","offer_id":54449464869132,"sku":"K-HERESY-IV-WLNT","price":4999.0,"currency_code":"EUR","in_stock":true},{"title":"American Auburn","offer_id":54449464901900,"sku":"K-HERESY-IV-AUB","price":4999.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7416\/0652\/files\/3_d0166e33-a381-43e9-b733-fb0ba08965c3.jpg?v=1777874456","url":"https:\/\/soundium.com\/pt\/products\/klipsch-heresy-iv","provider":"Soundium","version":"1.0","type":"link"}