{"id":986,"date":"2026-08-19T08:08:20","date_gmt":"2026-08-19T08:08:20","guid":{"rendered":"https:\/\/zsoundpro.com\/?p=986"},"modified":"2026-08-19T08:08:20","modified_gmt":"2026-08-19T08:08:20","slug":"powerful-15-inch-passive-speaker","status":"publish","type":"post","link":"https:\/\/zsoundpro.com\/fr\/powerful-15-inch-passive-speaker\/","title":{"rendered":"R15P-III 15 inch point source 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<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"807\" height=\"807\" data-src=\"https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/R15P-III-\u62f7\u8d1d.jpg\" alt=\"Powerful 15-Inch Passive Speaker\" class=\"wp-image-987 lazyload\" data-srcset=\"https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/R15P-III-\u62f7\u8d1d.jpg 807w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/R15P-III-\u62f7\u8d1d-300x300.jpg 300w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/R15P-III-\u62f7\u8d1d-150x150.jpg 150w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/R15P-III-\u62f7\u8d1d-768x768.jpg 768w, https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/R15P-III-\u62f7\u8d1d-12x12.jpg 12w\" data-sizes=\"(max-width: 807px) 100vw, 807px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 807px; --smush-placeholder-aspect-ratio: 807\/807;\" \/><\/figure>\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=\"powerful-15-inch-passive-speaker\">Powerful 15-Inch Passive Speaker<\/h2>\n\n\n<h2 style=\"line-height:1.7;\" class=\"wp-block-post-title has-medium-font-size\">R15P-III 15 inch point source 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 has-small-font-size\">\n<li>Small FOH<\/li>\n\n\n\n<li>Stage Monitor<\/li>\n\n\n\n<li>Near-Field Sound<\/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 has-small-font-size\">\n<li>Self-powered <a href=\"https:\/\/zsoundpro.com\/category\/pro_audio\/point-source-speaker\/\">full range speaker<\/a><\/li>\n\n\n\n<li>Elastic bass<\/li>\n\n\n\n<li>Long throw rubber edge LF driver<\/li>\n\n\n\n<li>Rotatable 80&#215;50\u00b0 directivity horn<\/li>\n\n\n\n<li>Built-in amplifier and DSP<\/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>50 Hz-18 kHz (\u00b13 dB), 30 Hz-20 kHz (-10dB)<\/td><\/tr><tr><td>NOMINAL COVERAGE<\/td><td>80\u00b0 x 50\u00b0<\/td><\/tr><tr><td>MAXIMUM SPL<\/td><td>123 dB SPL, 129 dB SPL peak<\/td><\/tr><tr><td>CHANNEL GAIN<\/td><td>CH1 (LOW): 26dB, CH2 (HI): 20dB<\/td><\/tr><tr><td>POWER RATING (AES)<\/td><td>2 * 500W@4\u03a9 + DSP<\/td><\/tr><tr><td>INPUT IMPEDANCE<\/td><td>18k\u03a9 balanced \/ 9k\u03a9 unbalanced<\/td><\/tr><tr><td>THD+N (0.1w to 1\/2 power)<\/td><td>&lt;0.05%<\/td><\/tr><tr><td>SIGNAL TO NOISE RATIO<\/td><td>&gt;98dB<\/td><\/tr><tr><td>COMMON MODE REJECTION RATIO<\/td><td>&gt;50dB<\/td><\/tr><tr><td>VOLTAGE REQUIREMENT<\/td><td>200-240VAC 50Hz<\/td><\/tr><tr><td>DRIVERS<\/td><td>LF: 1&#215;15&#8243; woofer (75mm Voice coil)HF: 1&#215;3&#8243; (1&#8243; throat) compression driver (75mm Voice coil)<\/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>686 x 456 x 445 mm \/ 27&#8243;x18&#8243;x18&#8243;<\/td><\/tr><tr><td>WEIGHT<\/td><td>31 kg \/ 68 lbs<\/td><\/tr><tr><td>RIGGING<\/td><td>M8 top + 35mm bottom<\/td><\/tr><tr><td>MATERIALS<\/td><td>15mm, 18mm 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>DIAGRAMS<\/td><td>Detailed dimension diagrams for front, top, and side views provided in image.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div><\/div>\n<\/div><\/div>\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 stk-e0e8164-inner-blocks\">\n<div class=\"wp-block-stackable-carousel stk-block-carousel stk--is-slide stk--arrows-justify-space-between stk--arrows-align-flex-end stk-block stk-77aa313\" data-slides-to-show=\"\" data-block-id=\"77aa313\"><style>.stk-77aa313 .stk-block-carousel__buttons{align-items:flex-end !important;}.stk-77aa313 {--button-offset:7px !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;}@media screen and (max-width: 767px){.stk-77aa313 {max-width:100% !important;min-width:auto !important;}}<\/style><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-77aa313-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-f6d13da\" data-v=\"4\" data-block-id=\"f6d13da\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-f6d13da-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-f6d13da-inner-blocks\">\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-4537033\" data-block-id=\"4537033\"><style>.stk-4537033 .stk--block-align-4537033{align-items:center !important;}.stk-4537033 {border-top-width:0px !important;border-right-width:0px !important;border-bottom-width:0px !important;border-left-width:0px !important;}.stk-4537033-column{--stk-columns-spacing:var(--stk--preset--spacing--20, 10px) !important;}<\/style><div class=\"stk-row stk-inner-blocks stk--block-align-4537033 stk-block-content stk-content-align stk-4537033-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d48d96a\" data-v=\"4\" data-block-id=\"d48d96a\"><style>@media screen and (min-width: 768px){.stk-d48d96a {flex:var(--stk-flex-grow, 1) 1 calc(33.333% - var(--stk-column-gap, 0px) * 1 \/ 2 ) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d48d96a-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d48d96a-inner-blocks\">\n<h2 class=\"wp-block-heading has-text-align-center is-style-text-display is-style-text-display--1\" id=\"p-10-internal-structure-display\">R15P in US<\/h2>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-a66efc0\" data-v=\"4\" data-block-id=\"a66efc0\"><style>@media screen and (min-width: 768px){.stk-a66efc0 {flex:var(--stk-flex-grow, 1) 1 calc(66.667% - var(--stk-column-gap, 0px) * 1 \/ 2 ) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-a66efc0-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-a66efc0-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 LA212 SS2 R15P Working at Band Performance in US Florida!\" width=\"500\" height=\"281\" data-src=\"https:\/\/www.youtube.com\/embed\/Eypyux28IRU?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<\/div><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-54df9b0\" data-v=\"4\" data-block-id=\"54df9b0\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-54df9b0-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-54df9b0-inner-blocks\">\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-d4c17c3\" data-block-id=\"d4c17c3\"><style>.stk-d4c17c3 .stk--block-align-d4c17c3{align-items:center !important;}.stk-d4c17c3 {border-top-width:0px !important;border-right-width:0px !important;border-bottom-width:0px !important;border-left-width:0px !important;}.stk-d4c17c3-column{--stk-columns-spacing:var(--stk--preset--spacing--20, 10px) !important;}<\/style><div class=\"stk-row stk-inner-blocks stk--block-align-d4c17c3 stk-block-content stk-content-align stk-d4c17c3-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-b7db722\" data-v=\"4\" data-block-id=\"b7db722\"><style>@media screen and (min-width: 768px){.stk-b7db722 {flex:var(--stk-flex-grow, 1) 1 calc(33.333% - var(--stk-column-gap, 0px) * 1 \/ 2 ) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-b7db722-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-b7db722-inner-blocks\">\n<h2 class=\"wp-block-heading is-style-text-display is-style-text-display--2\" id=\"p-10-testing\">R15P Testing<\/h2>\n\n\n\n<p class=\"is-style-default has-small-font-size\">The sound check music is copyrighted and has been muted. To experience the sound check effect, please contact us for the sound check video<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-5c65c97\" data-v=\"4\" data-block-id=\"5c65c97\"><style>@media screen and (min-width: 768px){.stk-5c65c97 {flex:var(--stk-flex-grow, 1) 1 calc(66.667% - var(--stk-column-gap, 0px) * 1 \/ 2 ) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-5c65c97-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-5c65c97-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 R15P Connection and Sound Check!\" width=\"500\" height=\"281\" data-src=\"https:\/\/www.youtube.com\/embed\/8WmQzLhBDNA?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<\/div><\/div>\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 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data-block-id=\"04357de\"><style>.stk-04357de .stk-block-tab-content .stk-block-content .stk-block-column[hidden]{display:none !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-block-tabs--horizontal stk-block-tabs--fade stk-content-align stk-04357de-column\">\n<div class=\"wp-block-stackable-tab-labels stk-block-tab-labels stk-block stk-cf8b7da stk-block-background is-style-centered-pills\" data-block-id=\"cf8b7da\"><style>.stk-cf8b7da .stk-block-tabs__tab{color:#999999 !important;padding-top:8px !important;padding-right:24px !important;padding-bottom:8px !important;padding-left:24px !important;border-top-left-radius:50px !important;border-top-right-radius:50px !important;border-bottom-right-radius:50px !important;border-bottom-left-radius:50px !important;}.stk-cf8b7da .stk-block-tabs__tab.stk-block-tabs__tab--active .stk-block-tab-labels__text{color:#ffffff !important;}.stk-cf8b7da {border-top-left-radius:var(--stk--preset--border-radius--full, 9999px) !important;border-top-right-radius:var(--stk--preset--border-radius--full, 9999px) !important;border-bottom-right-radius:var(--stk--preset--border-radius--full, 9999px) !important;border-bottom-left-radius:var(--stk--preset--border-radius--full, 9999px) !important;overflow:hidden !important;padding-top:8px !important;padding-right:8px !important;padding-bottom:8px !important;padding-left:8px !important;margin-right:auto !important;margin-left:auto !important;}.stk-cf8b7da .stk-block-tab-labels__text{font-size:var(--stk--preset--font-size--medium, 1rem) !important;color:#999999 !important;}.stk-cf8b7da .stk-block-tabs__tab:not(.stk-block-tabs__tab--active):hover{background:#dddddd !important;opacity:1 !important;}.stk-cf8b7da .stk-block-tabs__tab .stk--inner-svg svg:last-child, .stk-cf8b7da .stk-block-tabs__tab .stk--inner-svg svg:last-child :is(g, path, rect, polygon, ellipse){fill:#777777 !important;}.stk-cf8b7da .stk-block-tabs__tab:not(.stk-block-tabs__tab--active):hover .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<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"zsound-r-15-p-iii-the-ultimate-powerful-15-inch-passive-speaker\">ZSOUND R15P-III | The Ultimate Powerful 15-Inch Passive Speaker<\/h1>\n\n\n\n<p class=\"has-large-font-size\">When organizing events in large bars, multi-function halls, or auditoriums, the requirement for raw energy and sonic depth is non-negotiable. The ZSOUND R15P-III is designed to meet these heavy-duty demands, serving as a <strong>Powerful 15-Inch Passive Speaker<\/strong> (a professional loudspeaker that requires an external power amplifier to produce sound). As the larger sibling in the R-Series, this unit provides the extra &#8220;oomph&#8221; needed to move air in expansive spaces while maintaining the precision that audiophiles expect.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"large-format-drivers-for-deep-bass-and-clear-highs\">Large-Format Drivers for Deep Bass and Clear Highs<\/h2>\n\n\n\n<p class=\"has-large-font-size\">The secret to the R15P-III\u2019s performance lies in its massive 15-inch &#8220;Low-Frequency (LF) Driver&#8221; (the internal component responsible for producing deep bass and mid-range frequencies). Because a 15-inch cone has more surface area than smaller drivers, it can reproduce lower frequencies\u2014down to 55 Hz\u2014with much greater ease. This driver is paired with a 75mm &#8220;Voice Coil&#8221; (the coil of wire that generates the motive force to move the speaker cone). A larger voice coil allows the speaker to handle more power and heat, ensuring it doesn&#8217;t distort even when the party is at its peak.<\/p>\n\n\n\n<p class=\"has-large-font-size\">For the high end, the R15P-III uses a 1.75-inch &#8220;Compression Driver&#8221; (a specialized driver designed to push high-frequency sounds through a horn with high efficiency). This combination allows this <strong>Powerful 15-Inch Passive Speaker<\/strong> to deliver a &#8220;Maximum SPL&#8221; (Sound Pressure Level, which measures the peak loudness of the speaker) of a staggering 131dB. This is loud enough to cut through the noise of a crowded dance floor or a cheering audience without losing &#8220;Acoustic Intelligence&#8221; (the clarity and understandability of the audio).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"targeted-dispersion-with-a-rotatable-horn\">Targeted Dispersion with a Rotatable Horn<\/h2>\n\n\n\n<p class=\"has-large-font-size\">One of the most innovative features of this <strong>Powerful 15-Inch Passive Speaker<\/strong> is its 90\u00b0 x 50\u00b0 &#8220;Rotatable Horn&#8221; (the flared part of the speaker cabinet that controls the width and direction of high-frequency sound). In some venues, you might need to mount the speaker horizontally to save space or fit under a low ceiling. By rotating the horn, you can keep the sound focused on the audience and away from the floor or ceiling, which prevents &#8220;Muddy Reflections&#8221; (the blurry, echoing sound caused by audio bouncing off hard surfaces).<\/p>\n\n\n\n<p class=\"has-large-font-size\">This level of precision ensures that every person in the room\u2014from the front row to the back corner\u2014hears the exact same clear audio. To create a truly professional experience, many venue owners pair this precise audio control with <a href=\"http:\/\/seestar-lighting.com\" target=\"_blank\" rel=\"noreferrer noopener\">advanced stage event lighting<\/a> to ensure the visual atmosphere matches the sonic power of the ZSOUND system.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-x-large-font-size\" id=\"touring-grade-birch-plywood-construction\">Touring-Grade Birch Plywood Construction<\/h2>\n\n\n\n<p class=\"has-large-font-size\">A professional speaker is an investment that must withstand the rigors of the road and constant use. The R15P-III cabinet is constructed from high-density 15mm &#8220;Birch Plywood&#8221; (a premium wood material preferred by audio engineers for its strength and natural vibration-damping properties). Unlike plastic cabinets that can vibrate and add a &#8220;fake&#8221; sound to the music, birch plywood keeps the output pure and resonant.<\/p>\n\n\n\n<p class=\"has-large-font-size\">The exterior is finished with a &#8220;Water-Based Painting,&#8221; a rugged and eco-friendly coating that protects the cabinet from scratches and humidity. For installation flexibility, the R15P-III includes 13 separate M8 &#8220;Rigging&#8221; points (heavy-duty threaded holes used for safely hanging the speaker from a ceiling or truss). It also features a &#8220;Pole Mount&#8221; socket, making it compatible with standard speaker tripods for mobile setups. Whether used as a primary &#8220;Front-of-House&#8221; system or as a high-performance stage side-fill, the ZSOUND R15P-III is the <strong>Powerful 15-Inch Passive Speaker<\/strong> built for those who demand uncompromising power and reliability.<\/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=\"#powerful-15-inch-passive-speaker\">Powerful 15-Inch Passive Speaker<\/a><\/li><li><a href=\"#applications\">Applications<\/a><\/li><li><a href=\"#feature\">Feature<\/a><\/li><li><a href=\"#p-10-internal-structure-display\">R15P in US<\/a><\/li><li><a href=\"#p-10-testing\">R15P Testing<\/a><\/li><li><a href=\"#large-format-drivers-for-deep-bass-and-clear-highs\">Large-Format Drivers for Deep Bass and Clear Highs<\/a><\/li><li><a href=\"#targeted-dispersion-with-a-rotatable-horn\">Targeted Dispersion with a Rotatable Horn<\/a><\/li><li><a href=\"#touring-grade-birch-plywood-construction\">Touring-Grade Birch Plywood Construction<\/a><\/li><\/ul><\/nav><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Powerful 15-Inch Passive Speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 50 Hz-18 kHz (\u00b13 dB), 30 Hz-20 kHz (-10dB) NOMINAL COVERAGE 80\u00b0 x 50\u00b0 MAXIMUM SPL 123 dB SPL, 129 dB SPL peak CHANNEL GAIN CH1 (LOW): 26dB, CH2 (HI): 20dB POWER RATING (AES) 2 * 500W@4\u03a9 + DSP INPUT IMPEDANCE [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2798,"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":true},"categories":[5,15],"tags":[25],"class_list":["post-986","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pro_audio","category-point-source-speaker","tag-r"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/zsoundpro.com\/wp-content\/uploads\/2026\/06\/R15P-\u7279\u8272\u56fe.jpg","_links":{"self":[{"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/posts\/986","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=986"}],"version-history":[{"count":7,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/posts\/986\/revisions"}],"predecessor-version":[{"id":2799,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/posts\/986\/revisions\/2799"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/media\/2798"}],"wp:attachment":[{"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/media?parent=986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/categories?post=986"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zsoundpro.com\/fr\/wp-json\/wp\/v2\/tags?post=986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}