{"id":1102,"date":"2026-05-08T16:18:41","date_gmt":"2026-05-08T08:18:41","guid":{"rendered":"https:\/\/hlaproaudio.com\/?post_type=product&p=1102"},"modified":"2026-05-08T16:42:34","modified_gmt":"2026-05-08T08:42:34","slug":"sb-221b-2x21-passive-inch-subwoofer","status":"publish","type":"product","link":"https:\/\/hlaproaudio.com\/zh\/%e4%ba%a7%e5%93%81\/sb-221b-2x21-passive-inch-subwoofer\/","title":{"rendered":"SB-221B 2\u00d721 \u82f1\u5bf8\u65e0\u6e90\u82f1\u5bf8\u4f4e\u97f3\u70ae"},"content":{"rendered":"

\u8bf4\u660e<\/strong><\/h1>\n

\u6211\u4eec\u7684 SB \u7cfb\u5217\u8d85\u91cd\u4f4e\u97f3\u626c\u58f0\u5668\u5177\u6709\u5f3a\u5927\u7684\u9ad8\u58f0\u538b\u7ea7\u6027\u80fd\uff0c\u53ef\u63d0\u4f9b\u6df1\u6c89\u3001\u8eab\u4e34\u5176\u5883\u7684\u4f4e\u9891\u3002\u8be5\u7cfb\u5217\u4e13\u4e3a\u4e13\u4e1a\u6269\u58f0\u800c\u8bbe\u8ba1\uff0c\u53ef\u786e\u4fdd\u6781\u5177\u51b2\u51fb\u529b\u7684\u52a8\u6001\u4f4e\u97f3\uff0c\u662f\u97f3\u4e50\u4f1a\u3001\u6d3b\u52a8\u548c\u5927\u578b\u573a\u9986\u7684\u7406\u60f3\u9009\u62e9\u3002<\/p>\n

\u5e94\u7528<\/strong><\/h3>\n

\u6269\u97f3\u7cfb\u7edf
\n\u4ff1\u4e50\u90e8
\n\u591a\u529f\u80fd\u573a\u9986
\n\u4f53\u80b2\u573a\u9986
\n\u5546\u4e1a\u7efc\u5408\u4f53<\/p>\n

\u7279\u70b9<\/strong><\/h3>\n

\u91c7\u7528\u591a\u5c42\u6866\u6728\u80f6\u5408\u677f\uff0c\u5de5\u827a\u5b8c\u7f8e
\n\u6df1\u6c89\u3001\u52a8\u611f\u7684\u4f4e\u97f3
\n\u8d85\u5e38\u58f0\u538b\u7ea7 (SPL)
\n\u8010\u7528\u8bbe\u8ba1
\n\u7528\u9014\u5e7f\u6cdb<\/p>\n

\u6280\u672f\u53c2\u6570<\/strong><\/h3>\n

\u578b\u53f7SB-221B
\n\u9891\u7387\u8303\u56f4\uff08-10 \u5206\u8d1d\uff09\uff1a 28Hz-250Hz
\n\u8986\u76d6\u8303\u56f4\uff08-6 \u5206\u8d1d\uff09\uff1a\u51c6\u5168\u5411\u6027
\n\u5143\u4ef6\uff1a\u4f4e\u97f3\uff1a2\u00d718\"\uff08100\u03a6 \u97f3\u5708\uff09
\n\u8f93\u51fa\u529f\u7387\uff1a3000 W@AES\/6000 W@Peak
\n\u7075\u654f\u5ea6\uff081W\uff0c1 \u7c73\uff09\uff1a 105 \u5206\u8d1d\/SPL
\n\u6700\u5927\u58f0\u538b\u7ea7\/\u5cf0\u503c\uff1a140\/146 \u5206\u8d1d\/SPL
\n\u963b\u6297\uff1a4\u03a9<\/p>\n

\u7269\u7406\u53c2\u6570<\/h3>\n

\u8fde\u63a5\u5668\uff1a2 x SpeakON NL4
\n\u626c\u58f0\u5668\u7535\u7f06\uff1a1+\/1-
\n\u8868\u9762\u5904\u7406\uff1a\u591a\u5c42\u805a\u8132\u6d82\u5c42\uff0c\u5177\u6709\u5353\u8d8a\u7684\u6297\u51b2\u51fb\u6027\u3002
\nDimension(WxDxH): 1200x750x624mm
\n\u51c0\u91cd\uff1a 103 \u5343\u514b
\n\u91cd\u91cf\uff1a 106 \u5343\u514b<\/p>","protected":false},"excerpt":{"rendered":"

Description Our SB Series subwoofers deliver powerful, high-SPL performance for deep, immersive low frequencies. Engineered for professional sound reinforcement, this series ensures impactful, dynamic bass, making it the ideal choice for concerts, events, and large venues. Applications PA System clubs multi-functional venues Stadiums Comercial Complex Features Perfect crafted, using Multi Layer Birch Plywood Deep, Dynamic…<\/p>","protected":false},"featured_media":1105,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[57,58],"product_tag":[],"class_list":{"0":"post-1102","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-subwoofer","7":"product_cat-sb-series","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"yoast_head":"\nSB-221B 2x21" Passive Inch Subwoofer - Huayin Audio\u4e28Stage Pro Audio<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hlaproaudio.com\/zh\/\u4ea7\u54c1\/sb-221b-2x21-passive-inch-subwoofer\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SB-221B 2x21" Passive Inch Subwoofer - Huayin Audio\u4e28Stage Pro Audio\" \/>\n<meta property=\"og:description\" content=\"Description Our SB Series subwoofers deliver powerful, high-SPL performance for deep, immersive low frequencies. 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