{"product_id":"james-loudspeaker-emb15-4-m-passive-15-emb-in-room-down-firing-subwoofer-4-ohm","title":"James Loudspeaker EMB15-4-M - Passive 15\" EMB In-Room Down Firing Subwoofer, 4-Ohm","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe James Loudspeaker EMB15-4-M is a passive 15\" down-firing subwoofer wired for 4-ohm operation, built for commercial AV systems that distribute the deepest low-frequency reinforcement across multiple zones. Its down-firing 15-inch driver couples powerful bass to the floor, while the 4-ohm configuration makes this distributed subwoofer a match for low-impedance amplifier channels. As a passive sub, it runs from an external subwoofer amplifier. The EMB15-4-M suits integrators specifying maximum-output distributed low-frequency support.\u003c\/p\u003e\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eThe EMB15-4-M is the 4-ohm, down-firing distributed variant within the James Loudspeaker EMB subwoofer family. The 15 indicates a 15-inch driver, the -4 indicates 4-ohm wiring, and the -M designates the distributed model intended for multi-unit low-frequency systems. Because it is passive, the EMB15-4-M requires an external subwoofer amplifier, and its 4-ohm impedance suits standard low-impedance amplifier outputs. It is the largest driver in the distributed EMB range, stepping up in displacement from the EMB12-4-M and the EMB10-4-M. The finished cabinet supports in-room placement. The full lineup is available in the \u003ca href=\"https:\/\/creationnetworks.net\/collections\/james-loudspeaker\"\u003eJames Loudspeaker collection\u003c\/a\u003e. This makes the EMB15-4-M a practical specification for maximum-output distributed bass on low-impedance amplifiers.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e15-Inch Driver\u003c\/strong\u003e — A single 15-inch woofer delivers the highest output in the distributed EMB range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDown-Firing Design\u003c\/strong\u003e — The driver faces the floor, coupling deep bass into the room for even distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Ohm Configuration\u003c\/strong\u003e — Wired for 4-ohm operation to match low-impedance amplifier channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributed Variant\u003c\/strong\u003e — The -M model is built for multi-unit low-frequency reinforcement systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive Operation\u003c\/strong\u003e — Driven by an external subwoofer amplifier for full integrator control.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDistributed low-frequency systems\u003c\/li\u003e\n\u003cli\u003eLarge commercial theaters and venues\u003c\/li\u003e\n\u003cli\u003eMulti-zone audio installations\u003c\/li\u003e\n\u003cli\u003eHigh-end residential and hospitality spaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:480px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003ePassive Distributed Subwoofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eDriver Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e15\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eFiring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eDown-Firing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eDistribution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e4-Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eOperation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003ePassive (requires external amplifier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDoes the EMB15-4-M need an amplifier?\u003c\/strong\u003e\u003cbr\u003eYes. It is a passive subwoofer and requires an external subwoofer amplifier.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat impedance is it?\u003c\/strong\u003e\u003cbr\u003eIt is wired for 4-ohm operation to match low-impedance amplifier channels.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the driver size?\u003c\/strong\u003e\u003cbr\u003eThe EMB15-4-M uses a single 15-inch down-firing driver.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it the largest distributed EMB sub?\u003c\/strong\u003e\u003cbr\u003eYes. The 15-inch driver gives it the greatest displacement in the distributed EMB range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it compare to the EMB12-4-M?\u003c\/strong\u003e\u003cbr\u003eThe EMB15-4-M uses a larger 15-inch driver for greater displacement than the 12-inch EMB12-4-M.\u003c\/p\u003e","brand":"James Loudspeaker","offers":[{"title":"Default Title","offer_id":47710380949740,"sku":"60133","price":4735.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/gobqucyrze0cvotov5ov_b18e2d76-f7f8-40b1-aca7-24f258e5942f.png?v=1780807636","url":"https:\/\/creationnetworks.net\/products\/james-loudspeaker-emb15-4-m-passive-15-emb-in-room-down-firing-subwoofer-4-ohm","provider":"Creation Networks","version":"1.0","type":"link"}