{"product_id":"klipsch-heresy-iv-3-way-12-horn-loaded-loud-speaker-in-walnut-pair-demo","title":"Klipsch Heresy IV 3-Way 12” Horn-Loaded Loud-speaker in Natural Cherry per Pair (Trade-in)","description":"\u003c!-- ======================================================\n     Klipsch Heresy IV 3-Way 12” Horn-Loaded Loud-speaker (pair) — AL (bh-*) HTML\n     Two-Column Layout (Overview left \/ Specifications right)\n     Long-tail keyword used 5×: “Klipsch Heresy IV 3-Way 12” Horn-Loaded Loud-speaker (pair)”\n     ====================================================== --\u003e\n\u003cstyle\u003e\n  .bh-wrap{max-width:1100px;margin:0 auto;padding:1rem 1.25rem;line-height:1.6}\n  .bh-eyebrow{letter-spacing:.08em;text-transform:uppercase;font-size:.8rem;opacity:.7}\n  .bh-title{font-size:3rem;margin:.25rem 0 1rem}\n  .bh-sub{font-style:italic;margin:0 0 1.25rem}\n  .bh-grid{display:grid;gap:1.25rem}\n  @media(min-width:900px){.bh-grid{grid-template-columns:1.3fr .7fr;align-items:start}}\n  .bh-section{margin:2rem 0}\n  .bh-bullets{list-style:disc;padding-left:1.25rem;margin:.5rem 0 0}\n  .bh-specs{width:100%;border-collapse:collapse}\n  .bh-specs th,.bh-specs td{border:1px solid #e5e7eb;padding:.65rem;vertical-align:top}\n  .bh-specs th{width:42%;background:#f8fafc;text-align:left}\n  .bh-badge{display:inline-block;border:1px solid #e5e7eb;border-radius:999px;padding:.2rem .6rem;margin:.15rem .3rem 0 0;font-size:.85rem}\n  .bh-badges{margin-top:.5rem}\n  .bh-faq details{border:1px solid #e5e7eb;border-radius:.5rem;padding:.75rem 1rem;margin:.5rem 0;background:#fafafa}\n  .bh-faq summary{font-weight:600;cursor:pointer}\n  .bh-note{font-size:.95rem;opacity:.9}\n  .bh-condition{display:inline-block;border:1px solid #e5e7eb;border-radius:999px;padding:.3rem .75rem;margin:.5rem 0 0;font-size:.85rem;background:#fafafa}\n\u003c\/style\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Product\" itemscope=\"\" class=\"bh-wrap\"\u003e\n\u003cspan class=\"bh-eyebrow\"\u003eKLIPSCH\u003c\/span\u003e\n\u003ch2 itemprop=\"name\" class=\"bh-title\"\u003eKlipsch Heresy IV 3-Way 12” Horn-Loaded Loud-speaker in Natural Cherry\u003c\/h2\u003e\n\u003cp class=\"bh-sub\"\u003eHeritage Series compact three-way loudspeaker • 12\" woofer • horn-loaded midrange and tweeter • rear Tractrix® port • book-matched wood veneer • made to deliver high efficiency, dynamic realism, and classic Klipsch presentation\u003c\/p\u003e\n\u003cbr\u003e\n\u003cdiv class=\"bh-grid\"\u003e\n\u003c!-- LEFT COLUMN --\u003e\n\u003cdiv\u003e\n\u003csection class=\"bh-section\" id=\"overview\"\u003e\n\u003ch2\u003eMeet the Heresy IV\u003c\/h2\u003e\n\u003cp itemprop=\"description\"\u003eThe \u003cstrong\u003eKlipsch Heresy IV 3-Way 12” Horn-Loaded Loud-speaker (pair)\u003c\/strong\u003e carries forward one of the most iconic names in American hi-fi, blending classic Klipsch Heritage design with meaningful modern refinements. Originally introduced in 1957, the Heresy has long been prized for its compact footprint, explosive dynamics, and unmistakable live-sounding energy. The fourth-generation version adds a rear port for deeper bass extension, new driver updates, and a revised network while preserving the speed, efficiency, and immediacy that define the model.\u003c\/p\u003e\n\u003cdiv class=\"bh-badges\"\u003e\n\u003cspan class=\"bh-badge\"\u003e3-Way Design\u003c\/span\u003e \u003cspan class=\"bh-badge\"\u003e12\" Woofer\u003c\/span\u003e \u003cspan class=\"bh-badge\"\u003eHorn-Loaded Mid \/ High\u003c\/span\u003e \u003cspan class=\"bh-badge\"\u003eRear Tractrix® Port\u003c\/span\u003e \u003cspan class=\"bh-badge\"\u003eHeritage Series\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"bh-note\"\u003eFor listeners who want a speaker with real presence, strong sensitivity, and the unmistakable impact of horn-loaded design, this remains one of the most distinctive choices in premium traditional hi-fi.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"bh-section\" id=\"highlights\"\u003e\n\u003ch2\u003eHighlights \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul class=\"bh-bullets\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassic Heritage sound\u003c\/strong\u003e — a compact three-way format with horn-loaded midrange and tweeter gives the speaker exceptional dynamics, immediacy, and efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeeper bass than previous generations\u003c\/strong\u003e — for the first time in the model’s history, the Heresy adds a rear port, improving low-frequency extension and overall fullness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModern driver upgrades\u003c\/strong\u003e — the K-702 midrange compression driver and K-107-TI titanium diaphragm tweeter are designed to improve detail, coverage, and tonal refinement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-sensitivity performance\u003c\/strong\u003e — the design is easy to drive and particularly appealing for listeners using lower-powered tube amplifiers or refined low-to-moderate power solid-state amplification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFurniture-grade finish\u003c\/strong\u003e — book-matched real wood veneers and handcrafted Heritage construction give the speaker visual presence to match its sonic character.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentic live-feel presentation\u003c\/strong\u003e — the \u003cstrong\u003eKlipsch Heresy IV 3-Way 12” Horn-Loaded Loud-speaker (pair)\u003c\/strong\u003e is ideal for systems built around dynamics, scale, and a highly engaging, room-filling presentation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"bh-section\" id=\"technology\"\u003e\n\u003ch2\u003eTechnology \u0026amp; Design\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHorn-loaded midrange and treble\u003c\/strong\u003e — Klipsch continues to use its long-standing horn principles to improve efficiency, reduce distortion, and direct more acoustic energy toward the listening area with greater control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRear Tractrix® port system\u003c\/strong\u003e — the new rear-firing port uses Tractrix geometry and custom internal flaring to help reduce turbulence while producing punchier, more extended low frequencies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeritage build approach\u003c\/strong\u003e — designed and assembled in Hope, Arkansas, the Heresy IV uses book-matched wood veneers and a slanted riser base that reinforce both its historic identity and its intended listening geometry.\u003c\/p\u003e\n\u003cp class=\"bh-note\"\u003eIn a carefully matched system, the \u003cstrong\u003eKlipsch Heresy IV 3-Way 12” Horn-Loaded Loud-speaker (pair)\u003c\/strong\u003e delivers the kind of immediacy, dynamic realism, and tonal character that have made Klipsch Heritage speakers enduring favorites.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"bh-section bh-faq\" id=\"faq\"\u003e\n\u003ch2\u003eFAQ — Heresy IV\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat makes the Heresy IV different from earlier Heresy models?\u003c\/summary\u003e\n\u003cp\u003eThe major change is the addition of a rear port, which improves low-frequency extension, along with updated midrange and tweeter components and a revised network.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this a true horn speaker?\u003c\/summary\u003e\n\u003cp\u003eYes. It uses horn-loaded midrange and high-frequency drivers, paired with a direct-radiating 12\" woofer.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat kind of amplifier works well with it?\u003c\/summary\u003e\n\u003cp\u003eBecause of its high sensitivity, it works very well with a broad range of amplifiers, including lower-powered tube amplifiers and quality solid-state gear.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs it sold as a single speaker or a pair?\u003c\/summary\u003e\n\u003cp\u003eThis listing is for a pair.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWho is this speaker best for?\u003c\/summary\u003e\n\u003cp\u003eIt is a strong fit for listeners who want Heritage styling, high efficiency, and a dynamic, engaging presentation that feels closer to live music.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection class=\"bh-section\" id=\"why-buy\"\u003e\n\u003ch2\u003eWhy Buy From Us\u003c\/h2\u003e\n\u003cul class=\"bh-bullets\"\u003e\n\u003cli\u003eExpert guidance on matching Heritage speakers with the right tube or solid-state electronics\u003c\/li\u003e\n\u003cli\u003eHelp comparing Klipsch Heritage models for room size, taste, and system goals\u003c\/li\u003e\n\u003cli\u003eSupport from a specialty audio retailer focused on real-world synergy and long-term satisfaction\u003c\/li\u003e\n\u003cli\u003eTrusted advice for building a higher-performance two-channel system with authentic personality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"bh-section\" id=\"related\"\u003e\n\u003ch2\u003eRelated \u0026amp; System Matches\u003c\/h2\u003e\n\u003cul class=\"bh-bullets\"\u003e\n\u003cli\u003eTube amplifiers and integrated amps that benefit from high-efficiency loudspeakers\u003c\/li\u003e\n\u003cli\u003eAnalog and digital front ends built for dynamic, emotionally engaging playback\u003c\/li\u003e\n\u003cli\u003eOther Klipsch Heritage Series components for listeners exploring the full lineup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- RIGHT COLUMN --\u003e\n\u003caside\u003e\n\u003csection class=\"bh-section\" id=\"specs\"\u003e\n\u003ch2\u003eHeresy IV Specs\u003c\/h2\u003e\n\u003ctable class=\"bh-specs\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eCompact three-way loudspeaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003ctd\u003eSold as a pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency Response\u003c\/th\u003e\n\u003ctd\u003e48Hz – 20kHz ±4dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSensitivity\u003c\/th\u003e\n\u003ctd\u003e99dB @ 2.83V \/ 1m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Handling\u003c\/th\u003e\n\u003ctd\u003e100W continuous \/ 400W peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Impedance\u003c\/th\u003e\n\u003ctd\u003e8 ohms compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHigh Frequency Driver\u003c\/th\u003e\n\u003ctd\u003eK-107-TI 1\" titanium diaphragm compression driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHigh Frequency Horn\u003c\/th\u003e\n\u003ctd\u003eK-704 Tractrix® horn\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMidrange Driver\u003c\/th\u003e\n\u003ctd\u003eK-702 1.75\" polyimide diaphragm compression driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMidrange Horn\u003c\/th\u003e\n\u003ctd\u003eK-702 Tractrix® horn\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLow Frequency Driver\u003c\/th\u003e\n\u003ctd\u003eK-28-E 12\" fiber-composite cone woofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnclosure Type\u003c\/th\u003e\n\u003ctd\u003eBass reflex via rear Tractrix® port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInputs\u003c\/th\u003e\n\u003ctd\u003eDual binding posts \/ bi-wire capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e24.81\" H × 15.5\" W × 13.25\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e44.5 lbs each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish Options\u003c\/th\u003e\n\u003ctd\u003eAmerican Walnut, Satin Black Ash, Distressed Oak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"bh-note\"\u003eThe \u003cstrong\u003eKlipsch Heresy IV 3-Way 12” Horn-Loaded Loud-speaker (pair)\u003c\/strong\u003e combines Heritage-era character with modern driver and enclosure refinements for a speaker that remains uniquely compelling in today’s hi-fi landscape.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"bh-section\" id=\"whats-in-the-box\"\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul class=\"bh-bullets\"\u003e\n\u003cli\u003e2 × loudspeakers\u003c\/li\u003e\n\u003cli\u003eFactory-installed angled riser bases\u003c\/li\u003e\n\u003cli\u003eDocumentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- No purchase\/CTA section --\u003e\u003c\/aside\u003e\n\u003c\/div\u003e\n\u003cmeta itemprop=\"brand\" content=\"Klipsch\"\u003e \u003cmeta itemprop=\"category\" content=\"Floorstanding Speakers, Heritage Speakers, Horn-Loaded Loudspeakers\"\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Klipsch","offers":[{"title":"Default Title","offer_id":53820306129262,"sku":"KLIHERESYIVWLNTDEMO","price":2499.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/1537\/4703\/files\/PXL_20260522_162624319.jpg?v=1779489490","url":"https:\/\/audiolab.com\/products\/klipsch-heresy-iv-3-way-12-horn-loaded-loud-speaker-in-walnut-pair-demo","provider":"Audiolab","version":"1.0","type":"link"}