{"id":31763,"date":"2025-11-19T11:39:20","date_gmt":"2025-11-19T11:39:20","guid":{"rendered":"https:\/\/trendsbird.net\/pgrl\/?post_type=product&#038;p=31763"},"modified":"2025-12-15T11:19:20","modified_gmt":"2025-12-15T11:19:20","slug":"rose-ra-280","status":"publish","type":"product","link":"https:\/\/trendsbird.net\/pgrl\/product\/rose-ra-280\/","title":{"rendered":"Rose  RA280"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<h3 data-start=\"127\" data-end=\"147\">Specifications<\/h3>\n<ul>\n<li data-start=\"134\" data-end=\"196\">\n<p data-start=\"136\" data-end=\"196\"><strong data-start=\"136\" data-end=\"155\">Amplifier Type:<\/strong> Stereo Integrated Amplifier (Class AD)<\/p>\n<\/li>\n<li data-start=\"197\" data-end=\"256\">\n<p data-start=\"199\" data-end=\"256\"><strong data-start=\"199\" data-end=\"216\">Output Power:<\/strong> 250 W \u00d7 2 channels (into 4\u202f\u03a9 and 8\u202f\u03a9)<\/p>\n<\/li>\n<li data-start=\"257\" data-end=\"300\">\n<p data-start=\"259\" data-end=\"300\"><strong data-start=\"259\" data-end=\"281\">Amplifier Modules:<\/strong> Dual-mono design<\/p>\n<\/li>\n<li data-start=\"301\" data-end=\"374\">\n<p data-start=\"303\" data-end=\"374\"><strong data-start=\"303\" data-end=\"320\">Power Supply:<\/strong> Silicon Carbide FET + high-capacity super-capacitor<\/p>\n<\/li>\n<li data-start=\"375\" data-end=\"451\">\n<p data-start=\"377\" data-end=\"451\"><strong data-start=\"377\" data-end=\"388\">Filter:<\/strong> Two-stage analog LC filter to reduce class\u2011D switching noise<\/p>\n<\/li>\n<li data-start=\"452\" data-end=\"525\">\n<p data-start=\"454\" data-end=\"479\"><strong data-start=\"454\" data-end=\"477\">Frequency Response:<\/strong><\/p>\n<ul data-start=\"482\" data-end=\"525\">\n<li data-start=\"482\" data-end=\"525\">\n<p data-start=\"484\" data-end=\"525\">Speaker output: 10 Hz \u2013 ~85 kHz (-3 dB)<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"526\" data-end=\"585\">\n<p data-start=\"528\" data-end=\"585\"><strong data-start=\"528\" data-end=\"564\">Total Harmonic Distortion (THD):<\/strong> ~0.007% (at 125 W)<\/p>\n<\/li>\n<li data-start=\"586\" data-end=\"615\">\n<p data-start=\"588\" data-end=\"615\"><strong data-start=\"588\" data-end=\"607\">Damping Factor:<\/strong> &gt; 250<\/p>\n<\/li>\n<li data-start=\"616\" data-end=\"724\">\n<p data-start=\"618\" data-end=\"652\"><strong data-start=\"618\" data-end=\"650\">Signal-to-Noise Ratio (SNR):<\/strong><\/p>\n<ul data-start=\"655\" data-end=\"724\">\n<li data-start=\"655\" data-end=\"701\">\n<p data-start=\"657\" data-end=\"701\">Line inputs (balanced\/unbalanced): ~109 dB<\/p>\n<\/li>\n<li data-start=\"704\" data-end=\"724\">\n<p data-start=\"706\" data-end=\"724\">Phono MM: ~85 dB<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"725\" data-end=\"823\">\n<p data-start=\"727\" data-end=\"740\"><strong data-start=\"727\" data-end=\"738\">Inputs:<\/strong><\/p>\n<ul data-start=\"743\" data-end=\"823\">\n<li data-start=\"743\" data-end=\"765\">\n<p data-start=\"745\" data-end=\"765\">3 \u00d7 RCA line-level<\/p>\n<\/li>\n<li data-start=\"768\" data-end=\"788\">\n<p data-start=\"770\" data-end=\"788\">1 \u00d7 Balanced XLR<\/p>\n<\/li>\n<li data-start=\"791\" data-end=\"823\">\n<p data-start=\"793\" data-end=\"823\">1 \u00d7 MM Phono (moving magnet)<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"824\" data-end=\"927\">\n<p data-start=\"826\" data-end=\"850\"><strong data-start=\"826\" data-end=\"848\">Input Sensitivity:<\/strong><\/p>\n<ul data-start=\"853\" data-end=\"927\">\n<li data-start=\"853\" data-end=\"874\">\n<p data-start=\"855\" data-end=\"874\">Balanced: ~600 mV<\/p>\n<\/li>\n<li data-start=\"877\" data-end=\"905\">\n<p data-start=\"879\" data-end=\"905\">Unbalanced Line: ~600 mV<\/p>\n<\/li>\n<li data-start=\"908\" data-end=\"927\">\n<p data-start=\"910\" data-end=\"927\">Phono MM: ~5 mV<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"928\" data-end=\"992\">\n<p data-start=\"930\" data-end=\"952\"><strong data-start=\"930\" data-end=\"950\">Input Impedance:<\/strong><\/p>\n<ul data-start=\"955\" data-end=\"992\">\n<li data-start=\"955\" data-end=\"970\">\n<p data-start=\"957\" data-end=\"970\">Line: 47 k\u03a9<\/p>\n<\/li>\n<li data-start=\"973\" data-end=\"992\">\n<p data-start=\"975\" data-end=\"992\">Phono MM: 47 k\u03a9<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"993\" data-end=\"1098\">\n<p data-start=\"995\" data-end=\"1014\"><strong data-start=\"995\" data-end=\"1012\">Tone Control:<\/strong><\/p>\n<ul data-start=\"1017\" data-end=\"1098\">\n<li data-start=\"1017\" data-end=\"1060\">\n<p data-start=\"1019\" data-end=\"1060\">Bass (100 Hz) \/ Treble (10 kHz): \u00b115 dB<\/p>\n<\/li>\n<li data-start=\"1063\" data-end=\"1098\">\n<p data-start=\"1065\" data-end=\"1098\">Bypass switch for tone controls<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1099\" data-end=\"1136\">\n<p data-start=\"1101\" data-end=\"1136\"><strong data-start=\"1101\" data-end=\"1122\">Subwoofer Output:<\/strong> 1 Vrms mono<\/p>\n<\/li>\n<li data-start=\"1137\" data-end=\"1169\">\n<p data-start=\"1139\" data-end=\"1169\"><strong data-start=\"1139\" data-end=\"1160\">Output Impedance:<\/strong> ~30 m\u03a9<\/p>\n<\/li>\n<li data-start=\"1170\" data-end=\"1227\">\n<p data-start=\"1172\" data-end=\"1227\"><strong data-start=\"1172\" data-end=\"1204\">Power Consumption \/ Voltage:<\/strong> AC 100\u2011240V, 50\/60Hz<\/p>\n<\/li>\n<li data-start=\"1228\" data-end=\"1284\">\n<p data-start=\"1230\" data-end=\"1284\"><strong data-start=\"1230\" data-end=\"1245\">Dimensions:<\/strong> 430 mm (W) \u00d7 355 mm (D) \u00d7 110 mm (H)<\/p>\n<\/li>\n<li data-start=\"1285\" data-end=\"1308\">\n<p data-start=\"1287\" data-end=\"1308\"><strong data-start=\"1287\" data-end=\"1298\">Weight:<\/strong> ~9.5 kg<\/p>\n<\/li>\n<li data-start=\"1309\" data-end=\"1367\">\n<p data-start=\"1311\" data-end=\"1367\"><strong data-start=\"1311\" data-end=\"1331\">Chassis \/ Build:<\/strong> Solid aluminum + rust\u2011proof steel<\/p>\n<\/li>\n<li data-start=\"1368\" data-end=\"1402\">\n<p data-start=\"1370\" data-end=\"1402\"><strong data-start=\"1370\" data-end=\"1381\">Remote:<\/strong> IR remote included<\/p>\n<\/li>\n<li data-start=\"1403\" data-end=\"1478\">\n<p data-start=\"1405\" data-end=\"1426\"><strong data-start=\"1405\" data-end=\"1424\">Other Features:<\/strong><\/p>\n<ul data-start=\"1429\" data-end=\"1478\">\n<li data-start=\"1429\" data-end=\"1478\">\n<p data-start=\"1431\" data-end=\"1478\">Illuminated analog VU level meters (dimmable)<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"featured_media":31822,"template":"","meta":[],"product_brand":[260],"product_cat":[300,304],"product_tag":[],"class_list":["post-31763","product","type-product","status-publish","has-post-thumbnail","product_brand-rose","product_cat-amplifier","product_cat-integrated-amps","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/trendsbird.net\/pgrl\/wp-json\/wp\/v2\/product\/31763","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/trendsbird.net\/pgrl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/trendsbird.net\/pgrl\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":2,"href":"https:\/\/trendsbird.net\/pgrl\/wp-json\/wp\/v2\/product\/31763\/revisions"}],"predecessor-version":[{"id":34178,"href":"https:\/\/trendsbird.net\/pgrl\/wp-json\/wp\/v2\/product\/31763\/revisions\/34178"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/trendsbird.net\/pgrl\/wp-json\/wp\/v2\/media\/31822"}],"wp:attachment":[{"href":"https:\/\/trendsbird.net\/pgrl\/wp-json\/wp\/v2\/media?parent=31763"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/trendsbird.net\/pgrl\/wp-json\/wp\/v2\/product_brand?post=31763"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/trendsbird.net\/pgrl\/wp-json\/wp\/v2\/product_cat?post=31763"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/trendsbird.net\/pgrl\/wp-json\/wp\/v2\/product_tag?post=31763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}