{"id":3684,"date":"2026-03-21T13:56:29","date_gmt":"2026-03-21T13:56:29","guid":{"rendered":"https:\/\/mfzk-audio.com\/?post_type=product&#038;p=3684"},"modified":"2026-03-21T13:58:16","modified_gmt":"2026-03-21T13:58:16","slug":"dd-2280","status":"publish","type":"product","link":"https:\/\/mfzk-audio.com\/it\/prodotto\/dd-2280\/","title":{"rendered":"DD-2280"},"content":{"rendered":"<h4 class=\"kmb-widget-rich-text kmb-product-name kmb-widget-title-h4\" data-max-chars=\"120\"><span class=\"kmb-live-tag-label kmb-rich-text-paragraph\"><span class=\"kmb-color-tag-label\">DD-2280 Two Channel Digital Power Amplifier<\/span><\/span><\/h4>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Key Features<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Protection functions: Auto-limiting output, short circuit, overload, over-temperature, and power-on delay<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Delay start system to prevent speaker damage from power surges<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Dual-channel balanced input on the rear panel<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">SPEAKON output connectors for secure connection<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Standard 483mm rack-mount (1U) design, lightweight for easy transport and installation<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Independent cooling systems for amplifier and switching power supply<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Stepless fan speed control for optimized cooling efficiency<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Technical Specifications<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Output Power (8\u03a9, 1kHz): 2\u00d7350W<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Output Power (4\u03a9, 1kHz): 2\u00d7650W<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Frequency Response: 20Hz~20kHz (\u00b13dB)<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Total Harmonic Distortion (THD): \u22641% (8\u03a9, 350W)<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Input Sensitivity: +4dB (1.23V)<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Input Impedance: 10k\u03a9 (Balanced)<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Signal-to-Noise Ratio (S\/N): \u226580dB<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Connectors &amp; Indicators<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Input (CH1-2): XLR balanced input<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Output (CH1-2): SPEAKON output<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Power Supply: AC power input<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Indicator Lights:<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Power Indicator \u00d71 (Green)<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Input Signal Indicator \u00d72 (Yellow)<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Peak Indicator \u00d72 (Red)<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Protection Circuit Indicator \u00d71 (Red)<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Power &amp; Environmental Requirements<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Power Supply Voltage:<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">AC 110~120V, 50\/60Hz<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">AC 220~240V, 50\/60Hz (switchable via internal jumper)<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">1\/8 Rated Power Consumption: 50W \/ 80W \/ 110W<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Operating Temperature Range: 0~50\u2103<\/p>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">Operating Humidity Range: \u226490% RH (Non-condensing)<\/p>","protected":false},"excerpt":{"rendered":"<h4 class=\"kmb-widget-rich-text kmb-product-name kmb-widget-title-h4\" data-max-chars=\"120\"><span class=\"kmb-live-tag-label kmb-rich-text-paragraph\"><span class=\"kmb-color-tag-label\">DD-2280 Two Channel Digital Power Amplifier<\/span><\/span><\/h4>\n<p class=\"kmb-live-tag-label kmb-rich-text-paragraph\">","protected":false},"featured_media":3683,"template":"","meta":{"om_disable_all_campaigns":false},"product_brand":[],"product_cat":[39],"product_tag":[],"class_list":{"0":"post-3684","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-power-amplifier","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/mfzk-audio.com\/it\/wp-json\/wp\/v2\/product\/3684","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mfzk-audio.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mfzk-audio.com\/it\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":2,"href":"https:\/\/mfzk-audio.com\/it\/wp-json\/wp\/v2\/product\/3684\/revisions"}],"predecessor-version":[{"id":3686,"href":"https:\/\/mfzk-audio.com\/it\/wp-json\/wp\/v2\/product\/3684\/revisions\/3686"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mfzk-audio.com\/it\/wp-json\/wp\/v2\/media\/3683"}],"wp:attachment":[{"href":"https:\/\/mfzk-audio.com\/it\/wp-json\/wp\/v2\/media?parent=3684"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mfzk-audio.com\/it\/wp-json\/wp\/v2\/product_brand?post=3684"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mfzk-audio.com\/it\/wp-json\/wp\/v2\/product_cat?post=3684"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mfzk-audio.com\/it\/wp-json\/wp\/v2\/product_tag?post=3684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}