{"id":2935,"date":"2025-11-11T04:15:08","date_gmt":"2025-11-11T04:15:08","guid":{"rendered":"https:\/\/singaporeproaudio.com\/php1\/?post_type=product&#038;p=2935"},"modified":"2025-11-11T04:15:43","modified_gmt":"2025-11-11T04:15:43","slug":"rolls-du30b-audio-ducker-with-microphone-preamp","status":"publish","type":"product","link":"https:\/\/singaporeproaudio.com\/php1\/product\/rolls-du30b-audio-ducker-with-microphone-preamp\/","title":{"rendered":"Rolls DU30b Audio Ducker with Microphone Preamp"},"content":{"rendered":"<div id=\"hikashop_product_description_main\" class=\"hikashop_product_description_main\">\n<p>The DU30b is a microphone preamp and background music preamp. When an announcement is made into the microphone, the music is automatically &#8220;ducked&#8221; under the announcement. Then the music is brought back to it\u2032s previous level.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>In the Box:<\/strong><\/p>\n<p>Rolls DU30b Audio Ducker with Microphone Preamp<br \/>\nExternal Power Supply<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<p><em><strong>Specifications:<\/strong><\/em><\/p>\n<table class=\"uk-table hikashop_product_custom_info_main_table uk-margin-remove\">\n<tbody>\n<tr class=\"hikashop_product_custom_product_specs_all_line\">\n<td>Input Impedance: 100K Ohms unbalanced, 600 Ohms balanced<\/p>\n<p>Frequency Response: 20 Hz &#8211; 40 kHz<\/p>\n<p>THD + Noise: 0.03% typical<\/p>\n<p>Noise Floor: -78 dB<\/p>\n<p>Indicators: Power LED<\/p>\n<p>Input\/Output jacks: XLR balanced Input, RCA unbalanced input and output<\/p>\n<p>Size: 4&#8243; x 4&#8243; x 1.5&#8243;<\/p>\n<p>Weight: 1 lb. (.5 kg)<\/p>\n<p>Power: 12 &#8211; 16 VDC 50mA, 5 x 1.2 mm DC Jack &#8211; Center Negative<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>The DU30b is a microphone preamp and background music preamp. When an announcement is made into the microphone, the music is automatically &#8220;ducked&#8221; under the announcement. Then the music is brought back to it\u2032s previous level. &nbsp; In the Box: Rolls DU30b Audio Ducker with Microphone Preamp External Power Supply &nbsp; Specifications: Input Impedance: 100K [&hellip;]<\/p>\n","protected":false},"featured_media":2980,"template":"","meta":[],"product_brand":[123],"product_cat":[21,27,64],"product_tag":[],"class_list":{"0":"post-2935","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-rolls","7":"product_cat-all-products","8":"product_cat-signal-processor","9":"product_cat-microphone-preamplifiers","11":"first","12":"instock","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product\/2935","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/media\/2980"}],"wp:attachment":[{"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/media?parent=2935"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product_brand?post=2935"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product_cat?post=2935"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product_tag?post=2935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}