{"id":167391,"date":"2023-08-12T08:13:54","date_gmt":"2023-08-12T07:13:54","guid":{"rendered":"https:\/\/www.techweekmag.com\/?p=167391"},"modified":"2023-10-18T05:55:24","modified_gmt":"2023-10-18T04:55:24","slug":"rhb-sound-unveils-a-true-home-cinema-monster","status":"publish","type":"post","link":"https:\/\/www.hifiratings.com\/tech\/home-cinema\/rhb-sound-unveils-a-true-home-cinema-monster\/","title":{"rendered":"RHB Sound unveils a true home cinema monster"},"content":{"rendered":"<p>The American company\u00a0RBH Sound\u00a0has presented a real monster for equipping home cinemas of the highest level &#8211; a passive subwoofer\u00a0RBH Sound 21-SF \/ R\u00a0with a 21-inch bass driver and a 4-kilowatt external amplifier\u00a0RBH DA-2602DSP\u00a0.\u00a0This gigantic carbon fiber driver was made by Pierce Audio exclusively for RBH Sound.\u00a0Pierce Audio has been manufacturing handcrafted subwoofers and bass drivers in the Pacific Northwest since 2004.<\/p>\n<p>The speaker works in a closed acoustic design.\u00a0According to the manufacturer, the RBH Sound 21-SF \/ R subwoofer is capable of dropping to a fantastic 12 Hz.\u00a0The weight of 150 kg only emphasizes its extraordinary abilities in the field of high-quality bass production.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.hifiratings.com\/tech\/wp-content\/uploads\/2023\/08\/83_techweek.webp\" alt=\"\u00a0 Passive subwoofer RBH Sound 21-SF\/R\" \/><\/p>\n<p>In the design of the subwoofer, RBH has implemented its proprietary GADS (Granular Acoustic Damping System) technology, which improves the damping and rigidity of the dynamic driver due to the configuration of the inert cabinet.<\/p>\n<p>The manufacturer considers the DA-2602DSP amplifier to be the best partner for the RBH Sound 21-SF \/ R subwoofer, which provides enough power to fully control such a gigantic driver.\u00a0With 4kW bridged power and a 30-band DSP-based parametric equalizer, the DA-2602DSP is capable of driving even a pair of 21-SF\/R subwoofers.\u00a0The amplifying stages of the amplifier operate in class D, the high energy efficiency of which allows the amplifier to be made quite compact.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.hifiratings.com\/tech\/wp-content\/uploads\/2023\/08\/84_techweek.webp\" alt=\"\u00a0 Passive subwoofer RBH Sound 21-SF\/R\" \/><\/p>\n<p>New items are already on sale in the US.\u00a0The RBH 21-SF\/R\u00a0passive subwoofer\u00a0will cost\u00a0$9,995\u00a0, while\u00a0the DA-2602DSP\u00a0external amplifier will cost another\u00a0$1,950\u00a0.<\/p>\n<h3>RBH 21-SF\/R specs:<\/h3>\n<ul>\n<li>Body Material:\u00a0High Density Fibreboard (HDF)<\/li>\n<li>Driver:\u00a021&#8243; carbon fiber driver<\/li>\n<li>Acoustic design\u00a0:\u00a0closed box<\/li>\n<li>Maximum sound pressure:\u00a0120 dB<\/li>\n<li>Frequency response:\u00a012 &#8211; 80 Hz (\u00b1 3 dB)<\/li>\n<li>Impedance:\u00a04 ohm<\/li>\n<li>Input power:\u00a04000 W<\/li>\n<li>Grill:\u00a0black cloth, on magnetic mounts<\/li>\n<li>Body Finish:\u00a0Textured Black<\/li>\n<li>Dimensions (W\u00a0x\u00a0H\u00a0x\u00a0D):\u00a01092 x 692 x 533 mm<\/li>\n<li>Weight:\u00a0151 kg<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.hifiratings.com\/tech\/wp-content\/uploads\/2023\/08\/85_techweek.webp\" alt=\"Amplifier RBH DA-2602DSP\" \/><\/p>\n<h3>RBH DA-2602DSP amplifier specs:<\/h3>\n<ul>\n<li>Amplifier type:\u00a0two-channel class D amplifier with DSP<\/li>\n<li>Output power:\u00a02 x 1300W (8 ohms), 2 x 2200W (4 ohms), 1 x 2600W\/4000W peak (8 ohms bridged)<\/li>\n<li>Frequency response:\u00a020 Hz &#8211; 1 kHz (+\/- 0.5 dB) with low and high pass filters with cutoff frequency adjustment<\/li>\n<li>THD:\u00a0&lt;0.05% (1\/8 RMS at 1 kHz)<\/li>\n<li>Damping factor:\u00a0&gt;300<\/li>\n<li>Equalizer:\u00a030-band parametric equalizer (PEQ)<\/li>\n<li>Crossover filter frequency:\u00a040-180Hz (configurable in software)<\/li>\n<li>Crossover Slope:\u00a06 dB\/octave &#8211; 48 dB\/octave (adjustable in software)<\/li>\n<li>Phase control:\u00a00 &#8211; 180, delay control (configurable in software)<\/li>\n<li>Inputs:\u00a0balanced XLR (2)<\/li>\n<li>Outputs low-level:\u00a0balanced XLR (2) &#8211; for creating chains<\/li>\n<li>Outputs:\u00a0screw-type speaker terminals (2 pairs), Neutrik SpeakOn (2)<\/li>\n<li>Input impedance:\u00a020 kOhm<\/li>\n<li>Cooling System:\u00a0Active with variable speed fans<\/li>\n<li>Rack Mount:\u00a0Standard 2U Chassis<\/li>\n<li>Dimensions (W\u00a0x\u00a0H\u00a0x\u00a0D):\u00a0483 x 98.5 x 292 mm<\/li>\n<li>Weight:\u00a07.0 kg<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The American company\u00a0RBH Sound\u00a0has presented a real monster for equipping home cinemas of the highest level &#8211; a passive subwoofer\u00a0RBH Sound 21-SF \/ R\u00a0with a 21-inch bass driver and a 4-kilowatt external amplifier\u00a0RBH DA-2602DSP\u00a0.\u00a0This gigantic carbon fiber driver was made by Pierce Audio exclusively for RBH Sound.\u00a0Pierce Audio has been manufacturing handcrafted subwoofers and bass [&hellip;] <a class=\"g1-link g1-link-more\" href=\"https:\/\/www.hifiratings.com\/tech\/home-cinema\/rhb-sound-unveils-a-true-home-cinema-monster\/\">More<\/a><\/p>\n","protected":false},"author":10404,"featured_media":167396,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1050],"tags":[779],"class_list":["post-167391","post","type-post","status-publish","format-standard","has-post-thumbnail","category-home-cinema","tag-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hifiratings.com\/tech\/wp-json\/wp\/v2\/posts\/167391","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hifiratings.com\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hifiratings.com\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hifiratings.com\/tech\/wp-json\/wp\/v2\/users\/10404"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hifiratings.com\/tech\/wp-json\/wp\/v2\/comments?post=167391"}],"version-history":[{"count":0,"href":"https:\/\/www.hifiratings.com\/tech\/wp-json\/wp\/v2\/posts\/167391\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hifiratings.com\/tech\/wp-json\/wp\/v2\/media\/167396"}],"wp:attachment":[{"href":"https:\/\/www.hifiratings.com\/tech\/wp-json\/wp\/v2\/media?parent=167391"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hifiratings.com\/tech\/wp-json\/wp\/v2\/categories?post=167391"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hifiratings.com\/tech\/wp-json\/wp\/v2\/tags?post=167391"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}