{"product_id":"art-pro-audio-cx-311-251595","title":"CX 311","description":"\u003ch3\u003eAn Active Crossover Designed for Modern Bi-Amplification\u003c\/h3\u003e\u003cp\u003eIn a sound reinforcement setup, an active crossover like the CX 311 sits at the heart of the system to properly distribute the spectrum between amplifiers and speakers. The benefits are twofold: on one hand, you better utilize available power by avoiding amplifying unnecessary frequencies for each driver\u0026#59; on the other hand, you gain clarity and control, especially when the system combines bass reinforcement with satellites dedicated to mid\/high frequencies.\u003c\/p\u003e\u003cp\u003eThe CX 311 fits precisely into this logic: it allows organizing a system into \u003cstrong\u003e2 stereo channels\u003c\/strong\u003e (separated lows and highs) while adding a \u003cstrong\u003emono Sub channel\u003c\/strong\u003e to concentrate low-frequency energy where it is most effective.\u003c\/p\u003e\u003ch3\u003eWho Is the CX 311 For and When to Use It?\u003c\/h3\u003e\u003cp\u003eThe CX 311 is particularly suited for users seeking reliable and clear control without complicating the rack: mobile sound providers and DJs, bands, small stages, equipped rehearsal rooms, or fixed installations requiring clean bass management. It perfectly suits systems composed of a \u003cstrong\u003ebass reinforcement\u003c\/strong\u003e combined with \u003cstrong\u003ebi-amplified mid\/high satellites\u003c\/strong\u003e, where frequency band separation becomes crucial for mix precision.\u003c\/p\u003e\u003cp\u003eIt is also appropriate when you want to harmonize speakers and a subwoofer that do not naturally \"blend\": by adjusting the crossover frequency and output levels, you can achieve a tighter low end, a smoother transition between sub and satellites, and better overall coherence.\u003c\/p\u003e\u003ch3\u003eControls, Filters, and Settings: Practical Spectrum Management\u003c\/h3\u003e\u003ch4\u003eMain Channels: Clear Separation and Musical Integration\u003c\/h4\u003e\u003cp\u003eOn the main channels, the CX 311 offers a \u003cstrong\u003efrequency selector from 250 Hz to 6 kHz\u003c\/strong\u003e with \u003cstrong\u003e24 dB\/Oct\u003c\/strong\u003e \u003cstrong\u003eLinkwitz-Riley\u003c\/strong\u003e filters. This steep slope promotes a sharp separation between \"low\" and \"high\" bands, useful to limit overlap zones and improve clarity, especially at higher volumes.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eoutput levels\u003c\/strong\u003e allow quick balancing of the two bands, for example if your tops are very efficient in the upper spectrum or, conversely, if you want to add body to the low-midrange without forcing equalization. The \u003cstrong\u003eindependent controls (highs\/lows)\u003c\/strong\u003e facilitate tuning according to the room, speakers, and musical program dynamics.\u003c\/p\u003e\u003ch4\u003eMono Sub Section: Cleaner, More Controlled Bass\u003c\/h4\u003e\u003cp\u003eThe sub section includes a dedicated \u003cstrong\u003eoutput level\u003c\/strong\u003e, a \u003cstrong\u003e30 Hz high-pass filter\u003c\/strong\u003e, and a frequency adjustment from \u003cstrong\u003e50 to 250 Hz\u003c\/strong\u003e with a \u003cstrong\u003e12 dB\/Oct Butterworth\u003c\/strong\u003e filter. This setting allows choosing the point where the subwoofer takes over: lower for discreet and clean bass, higher to further relieve the satellites and gain headroom.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003emono Sub\u003c\/strong\u003e is a relevant choice in sound reinforcement because low frequencies are non-directional: concentrating energy in a single channel simplifies tuning and can improve the sense of impact, while maintaining a stable stereo image across the rest of the spectrum.\u003c\/p\u003e\u003ch4\u003e30 Hz High-Pass and Phase Inverter: Anti-\"Rumble\" and Polarity Alignment\u003c\/h4\u003e\u003cp\u003eThe \u003cstrong\u003eswitchable 30 Hz high-pass filter\u003c\/strong\u003e on all channels helps effectively eliminate \"Rumble\" type disturbances: stage vibrations, mechanical noises, non-musical infrasonic content. In practice, this protects power reserves, reduces unnecessary speaker excursion, and makes the bass more intelligible.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003ephase inverter\u003c\/strong\u003e is a valuable tool when connecting sub\/satellites: depending on subwoofer placement, distance, and acoustics, inversion can improve bass frequency summation at the listening point and avoid a hollow sensation around the crossover frequency.\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:3;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFrequency selector\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e250 Hz to 6 kHz\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)\"\u003e44.5 x 482.6 x 139.7 mm\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:2;--wb-r:4;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e24 dB\/Oct Linkwitz-Riley\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)\"\u003e2.2 kg\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"ART Pro Audio","offers":[{"title":"Default Title","offer_id":54334156243219,"sku":"251595","price":169.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0872\/6803\/files\/6285b236b5228a8bc8639090f66d25c74d7feeea_lg_cx311_angle.jpg?v=1792410555","url":"https:\/\/woodbrass.shop\/products\/art-pro-audio-cx-311-251595","provider":"Woodbrass.com","version":"1.0","type":"link"}