{"id":1147,"date":"2026-06-18T07:55:26","date_gmt":"2026-06-18T07:55:26","guid":{"rendered":"https:\/\/zsoundpro.com\/?p=1147"},"modified":"2026-08-01T08:51:59","modified_gmt":"2026-08-01T08:51:59","slug":"active-column-speaker-po45k","status":"publish","type":"post","link":"https:\/\/zsoundpro.com\/fr\/active-column-speaker-po45k\/","title":{"rendered":"PO45K column speaker"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-139db5b\" data-block-id=\"139db5b\"><style>.stk-139db5b .stk--block-align-139db5b{align-items:center !important;}.stk-139db5b {padding-top:var(--stk--preset--spacing--none, 0px) !important;padding-right:var(--stk--preset--spacing--none, 0px) !important;padding-bottom:var(--stk--preset--spacing--none, 0px) !important;padding-left:var(--stk--preset--spacing--none, 0px) !important;margin-top:var(--stk--preset--spacing--none, 0px) !important;margin-right:var(--stk--preset--spacing--none, 0px) !important;margin-bottom:var(--stk--preset--spacing--none, 0px) !important;margin-left:var(--stk--preset--spacing--none, 0px) !important;}.stk-139db5b-column{max-width:80% !important;min-width:auto !important;}@media screen and (max-width: 1023px){.stk-139db5b-column{max-width:92vw !important;min-width:auto !important;}}@media screen and (max-width: 767px){.stk-139db5b {max-width:100% !important;min-width:auto !important;padding-top:var(--stk--preset--spacing--none, 0px) !important;padding-right:var(--stk--preset--spacing--none, 0px) !important;padding-bottom:var(--stk--preset--spacing--none, 0px) !important;padding-left:var(--stk--preset--spacing--none, 0px) !important;margin-top:var(--stk--preset--spacing--none, 0px) !important;margin-right:var(--stk--preset--spacing--none, 0px) !important;margin-bottom:var(--stk--preset--spacing--none, 0px) !important;margin-left:var(--stk--preset--spacing--none, 0px) !important;}.stk-139db5b-column{max-width:100vw !important;min-width:auto !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk--block-align-139db5b stk-block-content stk-content-align stk-139db5b-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ceebefd\" data-v=\"4\" data-block-id=\"ceebefd\"><style>@media screen and (max-width: 1023px){.stk-ceebefd-container{margin-top:2px !important;margin-right:2px !important;margin-bottom:2px !important;margin-left:2px !important;}}@media screen and (max-width: 767px){.stk-ceebefd-container{margin-top:5px !important;margin-right:5px !important;margin-bottom:5px !important;margin-left:5px !important;}.stk-ceebefd {padding-top:var(--stk--preset--spacing--none, 0px) !important;padding-right:var(--stk--preset--spacing--none, 0px) !important;padding-bottom:var(--stk--preset--spacing--none, 0px) !important;padding-left:var(--stk--preset--spacing--none, 0px) !important;margin-top:var(--stk--preset--spacing--none, 0px) !important;margin-right:var(--stk--preset--spacing--none, 0px) !important;margin-bottom:var(--stk--preset--spacing--none, 0px) !important;margin-left:var(--stk--preset--spacing--none, 0px) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ceebefd-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ceebefd-inner-blocks\">\n<div class=\"wp-block-stackable-carousel stk-block-carousel stk--is-slide stk--arrows-justify-space-between stk--arrows-align-center stk-block stk-131146c\" data-slides-to-show=\"\" data-block-id=\"131146c\"><div class=\"stk-block-carousel__content-wrapper\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-block-carousel__slider-wrapper stk-content-align stk-131146c-column\"><div class=\"stk-block-carousel__slider\" role=\"list\" data-autoplay=\"4000\" data-label-slide-of=\"Slide %%d of %%d\" tabindex=\"0\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d37c815\" data-v=\"4\" data-block-id=\"d37c815\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d37c815-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d37c815-inner-blocks\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"819\" height=\"1024\" data-src=\"https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-1-819x1024.jpg\" alt=\"Active column speaker\" class=\"wp-image-1149 lazyload\" data-srcset=\"https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-1-819x1024.jpg 819w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-1-240x300.jpg 240w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-1-768x960.jpg 768w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-1-10x12.jpg 10w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-1.jpg 1156w\" data-sizes=\"(max-width: 819px) 100vw, 819px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 819px; --smush-placeholder-aspect-ratio: 819\/1024;\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-62fd5a2\" data-v=\"4\" data-block-id=\"62fd5a2\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-62fd5a2-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-62fd5a2-inner-blocks\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"819\" height=\"1024\" data-src=\"https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-3-819x1024.jpg\" alt=\"\" class=\"wp-image-1150 lazyload\" data-srcset=\"https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-3-819x1024.jpg 819w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-3-240x300.jpg 240w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-3-768x960.jpg 768w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-3-10x12.jpg 10w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-3.jpg 1156w\" data-sizes=\"(max-width: 819px) 100vw, 819px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 819px; --smush-placeholder-aspect-ratio: 819\/1024;\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-64d7bfe\" data-v=\"4\" data-block-id=\"64d7bfe\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-64d7bfe-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-64d7bfe-inner-blocks\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"819\" height=\"1024\" data-src=\"https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45K-POSUBP-819x1024.jpg\" alt=\"\" class=\"wp-image-1151 lazyload\" data-srcset=\"https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45K-POSUBP-819x1024.jpg 819w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45K-POSUBP-240x300.jpg 240w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45K-POSUBP-768x960.jpg 768w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45K-POSUBP-10x12.jpg 10w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45K-POSUBP.jpg 1156w\" data-sizes=\"(max-width: 819px) 100vw, 819px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 819px; --smush-placeholder-aspect-ratio: 819\/1024;\" \/><\/figure>\n<\/div><\/div><\/div>\n<\/div><div class=\"stk-block-carousel__buttons\"><button class=\"stk-block-carousel__button stk-block-carousel__button__prev\" aria-label=\"Previous slide\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"fas\" data-icon=\"chevron-left\" class=\"svg-inline--fa fa-chevron-left\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 320 512\" width=\"32\" height=\"32\"><path d=\"M34.52 239.03L228.87 44.69c9.37-9.37 24.57-9.37 33.94 0l22.67 22.67c9.36 9.36 9.37 24.52.04 33.9L131.49 256l154.02 154.75c9.34 9.38 9.32 24.54-.04 33.9l-22.67 22.67c-9.37 9.37-24.57 9.37-33.94 0L34.52 272.97c-9.37-9.37-9.37-24.57 0-33.94z\"><\/path><\/svg><\/button><button class=\"stk-block-carousel__button stk-block-carousel__button__next\" aria-label=\"Next slide\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"fas\" data-icon=\"chevron-right\" class=\"svg-inline--fa fa-chevron-right\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 320 512\" width=\"32\" height=\"32\"><path d=\"M285.476 272.971L91.132 467.314c-9.373 9.373-24.569 9.373-33.941 0l-22.667-22.667c-9.357-9.357-9.375-24.522-.04-33.901L188.505 256 34.484 101.255c-9.335-9.379-9.317-24.544.04-33.901l22.667-22.667c9.373-9.373 24.569-9.373 33.941 0L285.475 239.03c9.373 9.372 9.373 24.568.001 33.941z\"><\/path><\/svg><\/button><\/div><\/div><div class=\"stk-block-carousel__dots\" role=\"list\" data-label=\"Slide %%d\"><\/div><\/div><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-bed075c\" data-v=\"4\" data-block-id=\"bed075c\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-bed075c-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-bed075c-inner-blocks\">\n<div class=\"wp-block-group is-layout-flow wp-container-core-group-is-layout-357c23e0 wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\" id=\"active-column-speaker\">Active column speaker<\/h2>\n\n\n<h2 style=\"line-height:1.7;\" class=\"wp-block-post-title has-medium-font-size\">PO45K column speaker<\/h2>\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\" id=\"applications\">Applications<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\">Conference system<\/li>\n\n\n\n<li class=\"has-small-font-size\">Medium size performance<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\" id=\"feature\">Feature<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\">Small size, light weight, high sound pressure<\/li>\n\n\n\n<li class=\"has-small-font-size\">One person can finish installation and disassembly independently<\/li>\n\n\n\n<li class=\"has-small-font-size\">No wiring required, direct plug-in connection design<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-fdee8a2\" data-block-id=\"fdee8a2\"><style>.stk-fdee8a2 {padding-top:0% !important;padding-right:0% !important;padding-bottom:0% !important;padding-left:0% !important;margin-top:var(--stk--preset--spacing--none, 0px) !important;margin-right:var(--stk--preset--spacing--none, 0px) !important;margin-bottom:var(--stk--preset--spacing--none, 0px) !important;margin-left:var(--stk--preset--spacing--none, 0px) !important;}.stk-fdee8a2-column{max-width:80% !important;min-width:auto !important;}@media screen and (max-width: 1023px){.stk-fdee8a2-column{max-width:92vw !important;min-width:auto !important;}}@media screen and (max-width: 767px){.stk-fdee8a2 {max-width:100vw !important;min-width:auto !important;padding-top:var(--stk--preset--spacing--none, 0px) !important;padding-right:var(--stk--preset--spacing--none, 0px) !important;padding-bottom:var(--stk--preset--spacing--none, 0px) !important;padding-left:var(--stk--preset--spacing--none, 0px) !important;margin-top:var(--stk--preset--spacing--none, 0px) !important;}.stk-fdee8a2-column{max-width:100% !important;min-width:auto !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-fdee8a2-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-f02d8ba\" data-v=\"4\" data-block-id=\"f02d8ba\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-f02d8ba-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-f02d8ba-inner-blocks\">\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"technical-specification\">Technical Specification<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes has-small-font-size\"><table class=\"has-fixed-layout\" style=\"border-style:none;border-width:0px\"><thead><tr><th>Parameter Name<\/th><th>Parameter Value<\/th><\/tr><\/thead><tbody><tr><td>FREQUENCY RESPONSE<\/td><td>200 Hz-18kHz (\u00b13dB), 145 Hz-20kHz (-10dB)<\/td><\/tr><tr><td>NOMINAL COVERAGE (-6dB)<\/td><td>100\u00b0(H) x 45\u00b0(V) (Up \u00b115\u00b0, down \u00b130\u00b0)<\/td><\/tr><tr><td>SENSITIVITY (@1w\/1m)<\/td><td>98 dB SPL<\/td><\/tr><tr><td>POWER RATING (AES)<\/td><td>570W (AES)<\/td><\/tr><tr><td>NOMINAL IMPEDANCE<\/td><td>8 ohm<\/td><\/tr><tr><td>MAXIMUM SPL<\/td><td>132 dB SPL peak<\/td><\/tr><tr><td>DRIVERS<\/td><td>LF: 4&#215;5&#8243; woofer (45mm voice coil)HF: 1&#215;1.75&#8243; neodymium compression driver<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-3851903\" data-v=\"4\" data-block-id=\"3851903\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-3851903-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-3851903-inner-blocks\">\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"physical-data\">Physical Data<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes has-small-font-size\"><table class=\"has-fixed-layout\" style=\"border-style:none;border-width:0px\"><thead><tr><th>Parameter Name<\/th><th>Parameter Value<\/th><\/tr><\/thead><tbody><tr><td>Dimensions (HxWxD)<\/td><td>694 x 156 x 160 mm<\/td><\/tr><tr><td>WEIGHT<\/td><td>11 kg \/ 24.2 lbs<\/td><\/tr><tr><td>CONNECTORS<\/td><td>NEUTRIK NL4 x 2<\/td><\/tr><tr><td>SPEAKER CABLES<\/td><td>1+1-<\/td><\/tr><tr><td>MATERIALS<\/td><td>9mm, 12mm Baltic birch plywood<\/td><\/tr><tr><td>FINISH<\/td><td>Black Polyurea paintings<\/td><\/tr><tr><td>GRILLE<\/td><td>Black epoxy mesh grille with acoustically reticulated cloth<\/td><\/tr><tr><td>RIGGING<\/td><td>0\u00b0, -5\u00b0 degree adjustable (with adjustable support)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30)\"\/>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-9079522\" data-block-id=\"9079522\"><style>.stk-9079522-column{max-width:80% !important;min-width:auto !important;}@media screen and (max-width: 767px){.stk-9079522-column{max-width:100vw !important;min-width:auto !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-9079522-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e0e8164\" data-v=\"4\" data-block-id=\"e0e8164\"><style>@media screen and (max-width: 767px){.stk-e0e8164-container{margin-top:var(--stk--preset--spacing--20, 10px) !important;margin-right:var(--stk--preset--spacing--20, 10px) !important;margin-bottom:var(--stk--preset--spacing--20, 10px) !important;margin-left:var(--stk--preset--spacing--20, 10px) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e0e8164-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks 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stk-block-column stk-column stk-block stk-2ee979b\" data-v=\"4\" data-block-id=\"2ee979b\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-2ee979b-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-2ee979b-inner-blocks\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"ZSOUND PO45K+PO-SUBK Installation!\" width=\"500\" height=\"281\" data-src=\"https:\/\/www.youtube.com\/embed\/DGdKgPXW0X4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe>\n<\/div><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1dfff88\" data-v=\"4\" data-block-id=\"1dfff88\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1dfff88-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1dfff88-inner-blocks\">\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"PO-SUBK &amp; PO45K Column Speaker System\" width=\"500\" height=\"281\" data-src=\"https:\/\/www.youtube.com\/embed\/P83mswtUAIM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen 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.stk--inner-svg svg:last-child, .stk-cf8b7da .stk-block-tabs__tab:not(.stk-block-tabs__tab--active):hover .stk--inner-svg svg:last-child :is(g, path, rect, polygon, ellipse){fill:#000000 !important;}.stk-cf8b7da .stk-block-tabs__tab.stk-block-tabs__tab--active{background:#000000 !important;border-style:solid !important;border-top-width:0px !important;border-right-width:0px !important;border-bottom-width:0px !important;border-left-width:0px !important;}.stk-cf8b7da .stk-block-tabs__tab.stk-block-tabs__tab--active .stk--inner-svg svg:last-child, .stk-cf8b7da .stk-block-tabs__tab.stk-block-tabs__tab--active .stk--inner-svg svg:last-child :is(g, path, rect, polygon, ellipse){fill:#ffffff !important;}@media screen and (max-width: 1023px){.stk-cf8b7da .stk-block-tab-labels__text{font-size:var(--stk--preset--font-size--medium, 1rem) !important;}}<\/style><div class=\"stk-block-tab-labels__wrapper\" role=\"tablist\"><button class=\"stk-block-tabs__tab\" role=\"tab\"><div class=\"stk-block-tab-labels__text\"><span>Product Introduction<\/span><\/div><\/button><button class=\"stk-block-tabs__tab\" role=\"tab\"><div class=\"stk-block-tab-labels__text\"><span>Installation<\/span><\/div><\/button><button class=\"stk-block-tabs__tab\" role=\"tab\"><div class=\"stk-block-tab-labels__text\"><span>Product Matching<\/span><\/div><\/button><button class=\"stk-block-tabs__tab\" role=\"tab\"><div class=\"stk-block-tab-labels__text\"><span>Cases<\/span><\/div><\/button><button class=\"stk-block-tabs__tab\" role=\"tab\"><div class=\"stk-block-tab-labels__text\"><span>Download<\/span><\/div><\/button><button class=\"stk-block-tabs__tab\" role=\"tab\"><div class=\"stk-block-tab-labels__text\"><span>More Pic\/Video<\/span><\/div><\/button><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-tab-content stk-block-tab-content stk-block stk-a205f45\" data-block-id=\"a205f45\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-a205f45-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-434e98c\" data-v=\"4\" role=\"tabpanel\" data-block-id=\"434e98c\"><style>.stk-434e98c-container{margin-top:var(--stk--preset--spacing--none, 0px) !important;margin-right:var(--stk--preset--spacing--none, 0px) !important;margin-bottom:var(--stk--preset--spacing--none, 0px) !important;margin-left:var(--stk--preset--spacing--none, 0px) !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-434e98c-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-434e98c-inner-blocks\">\n<div class=\"wp-block-group has-small-font-size is-layout-flow wp-container-core-group-is-layout-e356762d wp-block-group-is-layout-flow\" style=\"border-style:none;border-width:0px;margin-top:0;margin-bottom:0\">\n<h1 class=\"wp-block-heading\" id=\"zsound-po-45-k-the-ultimate-active-column-speaker-for-professional-clarity\">ZSOUND PO45K: The Ultimate Active Column Speaker for Professional Clarity<\/h1>\n\n\n\n<p class=\"has-large-font-size\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);line-height:1.6\">In the world of professional sound reinforcement, finding a balance between aesthetic elegance and raw acoustic power has always been a challenge for event organizers. The ZSOUND PO45K enters the stage as a premier <strong>active column speaker<\/strong> (a slim, vertical loudspeaker housing multiple drivers to ensure uniform sound distribution), designed specifically to bridge the gap between portable convenience and high-output performance. As a cornerstone of our <a href=\"\/column-speaker-system\" target=\"_blank\" rel=\"noreferrer noopener\">Column Speaker System<\/a> pillar, the PO45K is engineered to deliver crystal-clear vocals and impactful music without the bulky footprint of traditional boxy cabinets.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-x-large-font-size\" id=\"versatile-coverage-with-innovative-180-degree-rotation\">Versatile Coverage with Innovative 180-Degree Rotation<\/h2>\n\n\n\n<p class=\"has-large-font-size\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);line-height:1.6\">The PO45K is not just another vertical box; it is a master of spatial adaptation. One of its standout features is the &#8220;Top-to-top mode,&#8221; which allows the top section of the column to rotate 180 degrees. This mechanical flexibility enables the system to achieve a horizontal coverage of 100 degrees and a vertical coverage of 60 degrees. By physical rotation (changing the direction the sound waves are pointed), sound engineers can minimize unwanted reflections from walls while ensuring that every attendee in a fan-shaped conference hall hears the same tonal balance.<\/p>\n\n\n\n<p class=\"has-large-font-size\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);line-height:1.6\">Whether you are setting up for a high-stakes corporate presentation or a medium-sized live performance, this active column speaker ensures that your message reaches the back of the room with the same intensity as the front row. This long-distance throw capability is achieved through the column&#8217;s vertical arrangement, which narrows the sound dispersion to prevent energy from being wasted on the ceiling or floor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-x-large-font-size\" id=\"precision-engineering-for-high-pressure-environments\">Precision Engineering for High-Pressure Environments<\/h2>\n\n\n\n<p class=\"has-large-font-size\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);line-height:1.6\">Under the sleek exterior of the PO45K lies a powerhouse of components. It features four 5-inch LF (low-frequency &#8211; the part of the speaker that handles bass and lower mid-tones) drivers and a 1.75-inch neodymium compression driver (a lightweight yet incredibly powerful high-frequency unit used for treble). This combination allows the unit to reach a Maximum SPL (Sound Pressure Level &#8211; the measurement of how loud a speaker can get) of 132dB. To put that into perspective, it is equivalent to the roar of a jet engine, yet delivered with the surgical precision required for high-fidelity audio.<\/p>\n\n\n\n<p class=\"has-large-font-size\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);line-height:1.6\">The integration of an internal amplifier eliminates the need for heavy external racks, making it a truly &#8220;plug-and-play&#8221; solution. When paired with <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/www.google.com\/url?sa=E&amp;q=https%3A%2F%2Fseestar-lighting.com\">innovative stage lighting<\/a>, the PO45K transforms any venue into a professional-grade theater or concert space. The cabinet itself is finished in black Polyurea paintings (a rugged, high-strength protective coating that resists scratches and moisture), ensuring that your investment remains in pristine condition even after years of touring and transport.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-x-large-font-size\" id=\"seamless-integration-and-easy-installation\">Seamless Integration and Easy Installation<\/h2>\n\n\n\n<p class=\"has-large-font-size\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);line-height:1.6\">Speed of setup is often the difference between a successful event and a logistical nightmare. At only 11kg (about the weight of a standard office chair), the PO45K is incredibly easy to handle for a single technician. It is designed to work in perfect harmony with our PO-SUBK subwoofer, creating a full-range system that covers everything from the deepest bass thumps to the highest shimmering cymbals.<\/p>\n\n\n\n<p class=\"has-large-font-size\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);line-height:1.6\">For permanent installations in churches or meeting rooms, the PO45K offers a discreet profile that blends into the architecture. Its 8-ohm nominal impedance (the measure of electrical resistance) ensures stable performance and efficient power usage. By choosing this active column speaker, you are opting for a system that values the listener&#8217;s experience as much as the technician&#8217;s time.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-x-large-font-size\" id=\"frequently-asked-questions-about-column-speakers\">Frequently Asked Questions About Column Speakers<\/h2>\n\n\n\n<p class=\"has-large-font-size\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);line-height:1.6\"><strong>Can the PO45K be used for outdoor events?<\/strong> While the PO45K features a durable Polyurea finish, we recommend using it under cover or in fair weather conditions for outdoor medium-sized performances. Its high SPL ensures it can cut through ambient wind noise effectively.<\/p>\n\n\n\n<p class=\"has-large-font-size\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);line-height:1.6\"><strong>Does this speaker require an external processor?<\/strong> As an active column speaker, much of the processing is handled internally. However, for complex multi-unit setups, using a ZSOUND digital signal processor can help fine-tune the room&#8217;s acoustics even further.<\/p>\n\n\n\n<p class=\"has-large-font-size\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);line-height:1.6\"><strong>How many PO45K units do I need for a 500-person conference?<\/strong> Typically, a pair of PO45K units supported by PO-SUBK subwoofers will provide excellent coverage for a medium-sized hall. The 100-degree horizontal spread is ideal for wide seating arrangements.<\/p>\n<\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-rank-math-toc-block aligncenter has-large-font-size\" style=\"padding-top:0;line-height:1.4\" id=\"rank-math-toc\"><h3>Table of Contents<\/h3><nav><ul><li><a href=\"#active-column-speaker\">Active column speaker<\/a><\/li><li><a href=\"#applications\">Applications<\/a><\/li><li><a href=\"#feature\">Feature<\/a><\/li><li><a href=\"#versatile-coverage-with-innovative-180-degree-rotation\">Versatile Coverage with Innovative 180-Degree Rotation<\/a><\/li><li><a href=\"#precision-engineering-for-high-pressure-environments\">Precision Engineering for High-Pressure Environments<\/a><\/li><li><a href=\"#seamless-integration-and-easy-installation\">Seamless Integration and Easy Installation<\/a><\/li><li><a href=\"#frequently-asked-questions-about-column-speakers\">Frequently Asked Questions About Column Speakers<\/a><\/li><\/ul><\/nav><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Active column speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 200 Hz-18kHz (\u00b13dB), 145 Hz-20kHz (-10dB) NOMINAL COVERAGE (-6dB) 100\u00b0(H) x 45\u00b0(V) (Up \u00b115\u00b0, down \u00b130\u00b0) SENSITIVITY (@1w\/1m) 98 dB SPL POWER RATING (AES) 570W (AES) NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 132 dB SPL peak DRIVERS LF: 4&#215;5&#8243; woofer (45mm voice [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1149,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[5,19],"tags":[],"class_list":["post-1147","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pro_audio","category-column-speaker"],"jetpack_featured_media_url":"https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/PO45k-1.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/posts\/1147","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/comments?post=1147"}],"version-history":[{"count":7,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/posts\/1147\/revisions"}],"predecessor-version":[{"id":2715,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/posts\/1147\/revisions\/2715"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/media\/1149"}],"wp:attachment":[{"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/media?parent=1147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/categories?post=1147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/tags?post=1147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}