{"product_id":"electrovoice-tx-2181-418117","title":"TX 2181","description":"\u003ch3\u003eAn Electro-Voice Subwoofer Designed to Integrate into a TX System\u003c\/h3\u003e\u003cp\u003eThe TX2181 is a passive Electro-Voice subwoofer developed to reinforce the low end of the spectrum in a sound reinforcement setup. Its dual 18-inch format has a clear goal: to deliver level, density, and bass extension suited to contemporary music, while remaining coherent with satellite speaker coverage and appropriate filtering. In a product range, this type of subwoofer typically serves as the system's foundation: it handles the low-frequency energy while the main speakers focus on midrange clarity and high-frequency definition.\u003c\/p\u003e\u003cp\u003eThe advertised \"omnidirectional\" coverage corresponds to the expected behavior of a subwoofer: low frequencies propagate widely, facilitating integration in various rooms. To optimize spatial distribution, placement (floor, cluster, cardioid if the system allows) and filtering are the main levers.\u003c\/p\u003e\u003ch3\u003eWho Is the TX2181 For and In Which Applications Does It Excel?\u003c\/h3\u003e\u003cp\u003eThe TX2181 is aimed at users who need \u003cstrong\u003esolid and physical bass\u003c\/strong\u003e : contractors, bands, concert venues, clubs, houses of worship, mobile stages, or fixed installations seeking a more present low end. Thanks to its two 18-inch drivers, it is particularly relevant when you want to feel the kick drum, electric bass, or electronic sub-bass without pushing the main speakers.\u003c\/p\u003e\u003cp\u003eAs it is a \u003cstrong\u003epassive subwoofer\u003c\/strong\u003e, it requires suitable external amplification and properly set processing (low-pass filter). It can thus integrate into an existing rig (amplifier + processor\/filtering) and allow precise sizing based on the venue, musical style, and target level.\u003c\/p\u003e\u003ch3\u003eFiltering, Performance, and Construction: What Makes the Difference\u003c\/h3\u003e\u003ch4\u003eRecommended Filtering for a Clean Crossover with the Satellites\u003c\/h4\u003e\u003cp\u003eElectro-Voice recommends a \u003cstrong\u003ecrossover frequency\u003c\/strong\u003e of 80 to 120 Hz in low-pass mode. This range is practical: 80 Hz favors a cleaner, more \"hi-fi\" crossover when the satellites extend well downwards, while 100 to 120 Hz can help relieve smaller main speakers. The goal is to achieve tight bass without bumps at the crossover and better overall system headroom.\u003c\/p\u003e\u003ch4\u003eFrequency Response and Bass Sensation\u003c\/h4\u003e\u003cp\u003eThe specified frequency response at -3 dB (50 Hz to 160 Hz) places the TX2181 in a typically useful sound reinforcement range, focused on bass impact and warmth. The -10 dB response (40 Hz to 1.5 kHz) gives an idea of possible extension depending on EQ, filtering, and configuration. In practice, careful tuning (crossover, filter slope, phase) is crucial to achieve bass that hits without masking the rest of the mix.\u003c\/p\u003e\u003ch4\u003eDurability and Field-Oriented Finishing Details\u003c\/h4\u003e\u003cp\u003eThe enclosure combines \u003cstrong\u003eplywood and MDF\u003c\/strong\u003e with an \u003cstrong\u003eEVCoat\u003c\/strong\u003e finish, designed to withstand handling and transport. The 16GA galvanized powder-coated steel grille protects the drivers, and the \u003cstrong\u003erotatable logo\u003c\/strong\u003e is a simple but useful detail when the subwoofer is positioned differently (horizontal\/vertical) or used in stacks. Weighing 56.1 kg, it is a serious-sized unit: the typical format of a dual 18-inch subwoofer intended to deliver level and 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:2;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eBluetooth\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eNo\u003c\/td\u003e\u003ctd data-r colspan=\"2\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\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:transparent;--wb-l:1;--wb-r:9;--wb-lb:transparent;--wb-rb:transparent\"\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)\"\u003eElectro-Voice TX2181\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eHorizontal and vertical coverage\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eomnidirectional\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:2;--wb-r:10;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\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 subwoofer\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003ePower handling\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e1000 W RMS (4000 W peak)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:3;--wb-r:11;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eLow-frequency drivers\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e2 x EVS-18S, 18 inches (457 mm)\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)\"\u003e4 ohms\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:4;--wb-r:12;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFrequency response (-3 dB)\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e50 Hz - 160 Hz\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eCabinet\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eplywood and MDF with EVCoat finish\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:5;--wb-r:13;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFrequency response (-10 dB)\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e40 Hz - 1.5 kHz\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eGrille\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e16GA galvanized powder-coated steel with rotatable logo\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:6;--wb-r:14;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eRecommended crossover frequency\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e80 - 120 Hz (low-pass)\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eDimensions (H x W x D)\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e1154 x 508 x 691 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:7;--wb-r:15;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eOn-axis sensitivity\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e103 dB (1 W\/1 m)\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e56.1 kg\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:8;--wb-r:16;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eCalculated max SPL\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e138 dB\u003c\/td\u003e\u003ctd data-r colspan=\"2\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Electrovoice","offers":[{"title":"Default Title","offer_id":54359495639315,"sku":"418117","price":1559.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0872\/6803\/files\/0b394e3488584dc3e9b1033c537de4345b390e64_MSC_87596.jpg?v=1792587594","url":"https:\/\/woodbrass.shop\/products\/electrovoice-tx-2181-418117","provider":"Woodbrass.com","version":"1.0","type":"link"}