{"id":168195,"date":"2023-09-05T12:37:52","date_gmt":"2023-09-05T11:37:52","guid":{"rendered":"https:\/\/www.techweekmag.com\/?p=168195"},"modified":"2023-10-18T05:57:24","modified_gmt":"2023-10-18T04:57:24","slug":"rotel-rmb-1585mkii-and-rmb-1587mkii-two-new-multi-channel-power-amplifiers","status":"publish","type":"post","link":"https:\/\/www.stereoindex.com\/tech\/hi-fi\/rotel-rmb-1585mkii-and-rmb-1587mkii-two-new-multi-channel-power-amplifiers\/","title":{"rendered":"Rotel RMB-1585MKII and RMB-1587MKII: Two new multi-channel power amplifiers"},"content":{"rendered":"<p>The Japanese brand\u00a0Rotel\u00a0presents two state-of-the-art multi-channel power amplifiers for home theater equipment &#8211;\u00a0RMB\u00a0-1585\u00a0MKII\u00a0and\u00a0RMB\u00a0-1587\u00a0MKII\u00a0.\u00a0These amplifiers embody Rotel&#8217;s rich heritage and tradition, including patented Class AB amplification technology, meticulously crafted to the highest quality standards.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/09\/26_techweek.webp\" alt=\"Image\" \/><\/p>\n<p>The Rotel RMB-1587MKII amplifier offers seven channels of Class AB amplification, each delivering 155 watts of power into an 8 ohm load with all channels operating simultaneously.\u00a0What&#8217;s more, it delivers 250 watts per channel into 4 ohms when all channels are on, and a staggering 335 watts per channel in dual channel mode.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/09\/27_techweek.webp\" alt=\"Image\" \/><\/p>\n<p>Two toroidal power transformers of our own production are installed in the power supply of the amplifier, capable of providing a load with high currents.\u00a0The filter is powered by eight high-performance capacitors with a total capacity of 120,000 uF, providing exceptional headroom for this amplifier.\u00a0The power supply architecture guarantees deep, controlled and rich bass even when driving the most demanding speakers.<\/p>\n<p>The switching arsenal of the Rotel RMB-1587MKII amplifier includes both balanced XLR connectors and unbalanced RCA inputs with automatic switching.\u00a0There is a 12V trigger input and output for remote power control.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/09\/28_techweek.webp\" alt=\"Image\" \/><\/p>\n<p>The amplifier&#8217;s output stages are cooled by four thermostatically controlled, ultra-low-noise, variable-speed fans.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/09\/29_techweek.webp\" alt=\"Image\" \/><\/p>\n<p>The Rotel RMB-1585 MKII multi-channel amplifier offers five channels of Class AB amplification, delivering 210 watts per channel into a nominal 8 ohm load and an impressive 340 watts per channel into a 4 ohm load with all channels driven simultaneously.\u00a0In dual channel mode, it puts out an astounding 440 watts per channel.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/09\/30_techweek.webp\" alt=\"Image\" \/><\/p>\n<p>This amp features a switch on the rear panel that allows you to intuitively configure it as a 3-channel amplifier that supports bi-amping of the front pair of speakers using channels 1 + 2 and 4 + 5, which automatically use source inputs #1 and #5 in this mode.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/09\/31_techweek.webp\" alt=\"Image\" \/><\/p>\n<p>Like the seven-channel model, the Rotel RMB-1585MKII is equipped with both balanced XLR inputs and unbalanced RCA auto-switching inputs.\u00a0There is also an input and output of a 12V trigger.\u00a0Otherwise, the five-channel model also repeats the seven-channel one.<\/p>\n<p>The new Rotel\u00a0RMB\u00a0-1587\u00a0MKII\u00a0and\u00a0RMB\u00a0-1585\u00a0MKII\u00a0multi-channel power amplifiers\u00a0are available in both black and stylish silver finishes.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/09\/32_techweek.webp\" alt=\"Image\" \/><\/p>\n<h3>Rotel RMB-1587MKII specifications:<\/h3>\n<ul>\n<li>Gain:\u00a0seven channels operating in class AB<\/li>\n<li>Output power:\u00a0155 W\/ch (7 ch into 8 ohms), 250 W\/ch (7 ch into 4 ohms), 335 W\/ch (2 ch into 4 ohms)<\/li>\n<li>Total Harmonic Distortion THD:\u00a0&lt; 0.03%<\/li>\n<li>Intermodulation distortion:\u00a0&lt; 0.03% (60 Hz : 7 kHz, 4:1)<\/li>\n<li>Frequency range:\u00a010 Hz &#8211; 100 kHz (+ 0 dB, &#8211; 0.3 dB)<\/li>\n<li>Damping factor:\u00a0330 (1 kHz, 8 ohms)<\/li>\n<li>Input Impedance \/ Sensitivity:\u00a012k\u03a9\/1.6V unbalanced input, 50k\u03a9\/3.4V balanced input<\/li>\n<li>Gain:\u00a026.6 dB<\/li>\n<li>Signal-to-noise ratio:\u00a0111 dB (A-weighted, IHF)<\/li>\n<li>Crosstalk\/channel separation:\u00a0&gt; 55 dB<\/li>\n<li>Power consumption:\u00a01 400 W<\/li>\n<li>Dimensions (W x H x D):\u00a0431 x 237 x 456 mm<\/li>\n<li>Weight:\u00a037.6 kg<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/09\/33_techweek.webp\" alt=\"Image\" \/><\/p>\n<h3>Rotel RMB-1585MKII specifications:<\/h3>\n<ul>\n<li>Gain:\u00a0five channels operating in class AB<\/li>\n<li>Output power:\u00a0210 W\/ch (5 ch into 8 ohms), 340 W\/ch (5 ch into 4 ohms), 440 W\/ch (2 ch into 4 ohms)<\/li>\n<li>Total Harmonic Distortion THD:\u00a0&lt; 0.03%<\/li>\n<li>Intermodulation distortion:\u00a0&lt; 0.03% (60 Hz : 7 kHz, 4:1)<\/li>\n<li>Frequency range:\u00a010 Hz &#8211; 100 kHz (+ 0 dB, &#8211; 0.3 dB)<\/li>\n<li>Damping factor:\u00a0223 (1 kHz, 8 ohms)<\/li>\n<li>Input Impedance \/ Sensitivity:\u00a012k\u03a9\/1.89V unbalanced input, 50k\u03a9\/4.7V balanced input<\/li>\n<li>Gain:\u00a026.9 dB<\/li>\n<li>Signal-to-noise ratio:\u00a0120 dB (A-weighted, IHF)<\/li>\n<li>Crosstalk\/channel separation:\u00a0&gt; 55 dB<\/li>\n<li>Power consumption:\u00a01200 W<\/li>\n<li>Dimensions (W x H x D):\u00a0430 x 237 x 456 mm<\/li>\n<li>Weight:\u00a037.4 kg<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The Japanese brand\u00a0Rotel\u00a0presents two state-of-the-art multi-channel power amplifiers for home theater equipment &#8211;\u00a0RMB\u00a0-1585\u00a0MKII\u00a0and\u00a0RMB\u00a0-1587\u00a0MKII\u00a0.\u00a0These amplifiers embody Rotel&#8217;s rich heritage and tradition, including patented Class AB amplification technology, meticulously crafted to the highest quality standards. The Rotel RMB-1587MKII amplifier offers seven channels of Class AB amplification, each delivering 155 watts of power into an 8 ohm load [&hellip;] <a class=\"g1-link g1-link-more\" href=\"https:\/\/www.stereoindex.com\/tech\/hi-fi\/rotel-rmb-1585mkii-and-rmb-1587mkii-two-new-multi-channel-power-amplifiers\/\">More<\/a><\/p>\n","protected":false},"author":10404,"featured_media":168205,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[642],"tags":[779],"class_list":["post-168195","post","type-post","status-publish","format-standard","has-post-thumbnail","category-hi-fi","tag-news"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts\/168195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/users\/10404"}],"replies":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/comments?post=168195"}],"version-history":[{"count":0,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts\/168195\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/media\/168205"}],"wp:attachment":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/media?parent=168195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/categories?post=168195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/tags?post=168195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}