{"product_id":"fbt-j15-422545","title":"J15","description":"\u003ch3\u003eFBT J15: A Classic 15-Inch Format Speaker for Sound Reinforcement\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eFBT J15\u003c\/strong\u003e is aimed at those looking for a passive 15-inch speaker, appreciated for its ability to produce generous low-end while maintaining solid projection. Its 2-way Bass Reflex configuration combines a 15-inch woofer and a 1-inch tweeter, a widely used combination in sound reinforcement to achieve a balanced sound capable of handling both playback music and live sources.\u003c\/p\u003e\u003ch3\u003eWhat Uses Is the FBT J15 Designed For?\u003c\/h3\u003e\u003cp\u003eThanks to its \u003cstrong\u003e90 deg (horizontal) x 60 deg (vertical) dispersion\u003c\/strong\u003e, the J15 is suitable for \u003cstrong\u003efront-of-house sound reinforcement\u003c\/strong\u003e in a simple setup (pair of speakers), as well as more complete systems with subwoofer(s) as needed. It is particularly well suited for \u003cstrong\u003ebands, DJs, associations, multipurpose venues\u003c\/strong\u003e, and providers seeking a reliable passive speaker that is easy to power and deploy.\u003c\/p\u003e\u003cp\u003eWith a \u003cstrong\u003enominal impedance of 8 ohms\u003c\/strong\u003e and a \u003cstrong\u003eRMS power of 150 W\u003c\/strong\u003e, it pairs naturally with a suitable power amplifier. The manufacturer recommends a \u003cstrong\u003e300 W RMS amplifier\u003c\/strong\u003e, providing a comfortable margin for peaks and improving dynamic handling, provided good setup practices are followed (limiting, reasonable equalization, and appropriate filtering).\u003c\/p\u003e\u003ch3\u003eAcoustic Design and Key Points for Field Use\u003c\/h3\u003e\u003ch4\u003eA 2-Way Bass Reflex System Designed for Impact and Clarity\u003c\/h4\u003e\u003cp\u003eThe \u003cstrong\u003e15-inch woofer\u003c\/strong\u003e (2-inch voice coil) provides solid low and low-midrange support, while the \u003cstrong\u003e1-inch tweeter\u003c\/strong\u003e (1-inch voice coil) delivers the precision needed for vocals, transients, and details. The \u003cstrong\u003e1.8 kHz crossover frequency\u003c\/strong\u003e contributes to coherence between the two drivers, ensuring a balanced sound suitable for both music playback and speech.\u003c\/p\u003e\u003ch4\u003eControlled Coverage and Easy System Integration\u003c\/h4\u003e\u003cp\u003eThe \u003cstrong\u003e90 deg x 60 deg directivity\u003c\/strong\u003e helps target the listening area while limiting unwanted side projections, an advantage both in rooms and on stage. On the connection side, the \u003cstrong\u003e2 Speakon NL4 inputs\u003c\/strong\u003e facilitate daisy-chaining and integration into a speaker fleet, with secure wiring suited for intensive use.\u003c\/p\u003e\u003ch4\u003eFiltering Recommendations to Protect the System\u003c\/h4\u003e\u003cp\u003eTo optimize power handling and limit unnecessary excursions in the sub-bass range, a \u003cstrong\u003erecommended high-pass filter at 40 Hz with a 24 dB\/oct slope\u003c\/strong\u003e is advised. This is particularly relevant if the J15 is used at high levels or in configurations aiming to preserve amplifier dynamic headroom.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cstyle\u003e@media(max-width:632px){table[data-wb-spec]{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}table[data-wb-spec] colgroup{display:none}table[data-wb-spec] tbody,table[data-wb-spec] tr{display:contents}table[data-wb-spec] td{display:block;overflow-wrap:anywhere;grid-row:var(--wb-l);background-color:var(--wb-lb)}table[data-wb-spec] td[data-r]{grid-row:var(--wb-r);background-color:var(--wb-rb)}table[data-wb-spec] td[colspan=\"2\"]{grid-column:1\/-1}table[data-wb-spec] td:empty{display:none}}\u003c\/style\u003e\n\u003ctable data-wb-spec style=\"width:100%;table-layout:fixed\"\u003e\n\u003ccolgroup\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003c\/colgroup\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:1;--wb-r:13;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eFBT J15\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eNominal impedance\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e8 ohms\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:2;--wb-r:14;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003epassive speaker\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eFrequency response\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e50 Hz - 20 kHz\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:3;--wb-r:15;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eblack\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e99 dB\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:4;--wb-r:16;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eManufacturer reference\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e37833\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eMaximum peak SPL\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e127 dB\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:5;--wb-r:17;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e2-way Bass Reflex\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eRecommended high-pass filter\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e40 Hz - 24 dB\/oct\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:6;--wb-r:18;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eWoofer\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e15 inches (381 mm), 2-inch (50.8 mm) voice coil\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eInput connectors\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e2 x Speakon NL4\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:7;--wb-r:19;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eTweeter\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e1 inch (25.4 mm), 1-inch (25.4 mm) voice coil\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eEnclosure material\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003epolypropylene\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:8;--wb-r:20;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eDispersion\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e90 deg H x 60 deg V\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e2x M10 + 35 mm pole mount\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:9;--wb-r:21;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eCrossover frequency\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e1.8 kHz\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eadjustable mounts sold separately (BOX 112)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:10;--wb-r:22;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eRMS power\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e150 W\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e663 x 410 x 387 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:11;--wb-r:23;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003ePeak power\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e600 W\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e14.7 kg\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:12;--wb-r:24;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eRecommended amplifier\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e300 W RMS\u003c\/td\u003e\u003ctd data-r colspan=\"2\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"FBT","offers":[{"title":"Default Title","offer_id":54361979322643,"sku":"422545","price":399.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0872\/6803\/files\/365582862d59c1a558aefd1071108f946ecb86e4_MSC_61623.jpg?v=1792661627","url":"https:\/\/woodbrass.shop\/products\/fbt-j15-422545","provider":"Woodbrass.com","version":"1.0","type":"link"}