{"product_id":"jbl-4645-woofer-2245h-_caisson-de-basses-18-professionnel","title":"JBL 4645 (woofer 2245h) - 18\" Professional Subwoofer","description":"\u003cp class=\"p1\"\u003e \u003cspan class=\"s1\"\u003e(SUB1003)\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003eInstagram @image.sonore\u003c\/span\u003e\u003c\/p\u003e\n\n \u003cp class=\"p4\"\u003e\u003cspan class=\"s2\"\u003eThe JBL 4645 is a powerful 18” subwoofer system designed for professional cinema and sound reinforcement applications, known for its deep bass and rugged build.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e🔊 Key Specifications\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e• Driver: JBL 2245H 18” low-frequency transducer (in the original 4645);\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e• Cabinet: Model 4518 bass-reflex enclosure, tuned to 30 Hz with an 8 cubic foot internal volume 9F742443-6C92-4C44-BF58-8F5A7C53B6F1.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e• Power Handling: • 4645B: Rated at 800 watts continuous RMS, thanks to advanced cooling and motor structure 9F742443-6C92-4C44-BF58-8F5A7C53B6F1.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e• Frequency Response:• Extends smoothly to the lowest audible frequencies, ideal for cinematic LFE (Low Frequency Effects) channels 9F742443-6C92-4C44-BF58-8F5A7C53B6F1.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e\u003c\/p\u003e\n\n \u003cp class=\"p4\"\u003e\u003cspan class=\"s2\"\u003e• Design Features:• SVG (Super Vented Gap) and SFG (Symmetrical Field Geometry) technologies for reduced distortion and improved thermal handling 9F742443-6C92-4C44-BF58-8F5A7C53B6F1.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e• Construction: 19 mm particle board with 25 mm baffle and back panel, extensively braced for rigidity 9F742443-6C92-4C44-BF58-8F5A7C53B6F1.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e🏛️ Applications\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e• THX-certified for theater use 9F742443-6C92-4C44-BF58-8F5A7C53B6F1.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e• Commonly paired with vintage JBL studio monitors like the 4343 for full-range systems 9F742443-6C92-4C44-BF58-8F5A7C53B6F1.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e• Suitable for both residential and commercial setups where deep, accurate bass is essential.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e🛠️ Historical Context\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e\u003c\/p\u003e\n\n\u003cp class=\"p4\"\u003e \u003cspan class=\"s2\"\u003e• The JBL 4645 emerged in the 1980s as part of JBL's Professional Series, targeting high-end cinema and studio environments.\u003c\/span\u003e\u003c\/p\u003e\n\n \u003cp class=\"p4\"\u003e\u003cspan class=\"s2\"\u003e• Its modular design—separating cabinet and driver model numbers—allowed for flexible upgrades and replacements.\u003c\/span\u003e\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":42091658772574,"sku":"SUB1003","price":1500.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/2376\/5086\/files\/0A5D9B7E-2043-4578-83DB-DDC1ED65CC29.jpg?v=1760036691","url":"https:\/\/imagesonore.ca\/en\/products\/jbl-4645-woofer-2245h-_caisson-de-basses-18-professionnel","provider":"image sonore","version":"1.0","type":"link"}