{"id":12928,"date":"2025-10-05T10:18:44","date_gmt":"2025-10-05T10:18:44","guid":{"rendered":"https:\/\/poiesistech.com\/audiopeople\/?post_type=product&#038;p=12928"},"modified":"2026-03-12T12:45:30","modified_gmt":"2026-03-12T12:45:30","slug":"violectric-niimbus-us-5-pro","status":"publish","type":"product","link":"https:\/\/theaudiopeople.com.vn\/vi\/product\/violectric-niimbus-us-5-pro\/","title":{"rendered":"Violectric Niimbus US 5 Pro"},"content":{"rendered":"<p>The most resolving amplifier \u2013 not just of <a href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Violectric\" rel=\"noopener noreferrer\" target=\"_blank\">Violectric<\/a>&#8216;s current crop, but in all of Head-Fi. A bold claim, but a title befitting for the Niimbus US5 Pro though as it achieves both fidelity via a 135dB dynamic range, and combines that with power to drive <a href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Hifiman\" rel=\"noopener noreferrer\" target=\"_blank\">HIFIMAN<\/a>&#8216;s Susvara.\u00a0<\/p>\n<p>14 watts into Susvara Unveiled certainly keeps that planar flagship ticking over and producing all the resolution it&#8217;s capable of. Niimbus, Violectric and Lake People continue to be worthy steeds for the world&#8217;s latest and greatest headphones.<\/p>\n<p>It clinches\u00a0<a href=\"https:\/\/www.stereonet.com\/uk\/reviews\/violectric-niimbus-us-5-pro-headphone-amplifier-review\" rel=\"noopener\" target=\"_blank\">StereoNET<\/a>&#8216;s Applause Award and is <a rel=\"noopener\" href=\"https:\/\/the-ear.net\/review-hardware\/niimbus-us-5-pro-h-phone-amp-veracity\/\" target=\"_blank\">The Ear<\/a>&#8216;s Editor&#8217;s Choice, with the real award from the latter coming from them buying the review unit.\u00a0All the hallmarks of a superb voltage source are present.<\/p>\n<p>16 output transistors provide superb damping factor and are fully capable of handling the current produced by US5 Pro&#8217;s dual-mono power supply and huge operating voltage.<\/p>\n<p>But power is nothing without control, US5 Pro says echoing Pirelli&#8217;s famous slogan. For an amplifier capable of providing so much power, the Niimbus signature move of using reed-relay resistor ladder volume controls and Violectric&#8217;s unique pre-gain system keeps noise low, and detail in your music high. <strong>[See Product Desc. For More]<\/strong><\/p>\n<p><!--split--><\/p>\n<p>In there is the delicate balance Niimbus provides. US5 Pro achieves infinite headroom for listening loud on the most demanding headphones, reproducing crashing musical crescendos without the slightest hint of clipping or losing composure.\u00a0<\/p>\n<p><center><iframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/Phkck2woZWo?si=vVsCXMS4gpLEdp3k\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen=\"\"><\/iframe><\/center><\/p>\n<p>And at the same time, Niimbus is a transient detail monster, being totally respectful of musical detail and reproducing it without undue colouration.<\/p>\n<p>\u201cTools, not toys\u201d is the famous Violectric slogan, yet US5 Pro&#8217;s top attributes always combine to bring us unbridled fun hearing detail that hadn&#8217;t been present before.<\/p>\n<p>At the heart of Niimbus&#8217; awesome performance is a power supply built upon a 60 volt operating voltage. No matter how loud you listen, US5 Pro&#8217;s massive headroom keeps individual transistors running in their most linear region in the open-loop.\u00a0<\/p>\n<p>Linearity is already a given before negative feedback is applied. What goes in comes out the same \u2013 and US5 Pro&#8217;s fully-balanced, differential operation yields common-mode rejection that also lends itself to this amplifier&#8217;s huge claimed 135dB dynamic range.<\/p>\n<p>The true credit for that goes towards the default extremely low internal gain \u2013 all of 2dB \u2013 Niimbus works with. With lower gain comes lower noise, encouraging you to climb your volume knob and feed in more signal &#8230; only helping your ratios, and your ability to hear more of the music.\u00a0<\/p>\n<p><center><iframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/lLlPJyvGSIQ?si=lec6WEqC0MuAbiU7\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen=\"\"><\/iframe><\/center><\/p>\n<p>That optimised operation only serves up the platform for US5 Pro&#8217;s reed-relay volume control \u2013 256 steps each yielding a 0.4dB difference. That yields super-precise adjustments devoid of channel imbalances, and no loss of transparency one might otherwise endure at the lowest points of a conventional potentiometer.\u00a0\u00a0<\/p>\n<p>Free from the big chunk of a variable resistor in its signal path, US5 Pro switches in a couple of quality resistors of precise value for your volume setting, to enable a hyper-transparent presentation.<\/p>\n<p>The direct-coupled Niimbus promises frequency extension that is virtually flat from near DC to 250Khz, meaning phase response in the human hearing range is stellar and transients and dynamics are true-to-life.<\/p>\n<p>What strengthens this impression is clearly a tremendously high slew rate. The air and natural, sophisticated bloom to notes separates this Niimbus from all others \u2013 even its regular US5 counterpart.<\/p>\n<p>All this exceptional handling of US5 Pro&#8217;s small signal leads to a linearity that then gets passed over to 16 output transistors that are well capable of withstanding the amplifier&#8217;s huge operating voltage \u2013 and handling the abundant current its power supply can deliver.<\/p>\n<p>This all maintains the exceptional fidelity Niimbus receives from your source, to be passed over accurately \u2013 with minimal distortion \u2013 to your flagship headphones.\u00a0<\/p>\n<p><span>With every other popular flaghip planar-magnetic headphone taking the low-impedance route, having the power reserves and voltage headroom of Niimbus will serve you ably now and in the future.<\/span><\/p>\n<p>US5 Pro drives everything, from IEMs on the right pre-gain setting, to becoming the sweet spot for <a href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Final%20Audio\" rel=\"noopener noreferrer\" target=\"_blank\">Final Audio<\/a>s, <a href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Focal\" rel=\"noopener noreferrer\" target=\"_blank\">Focal<\/a>s, <a href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Fostex\" rel=\"noopener noreferrer\" target=\"_blank\">Fostex<\/a>s and <a href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Rosson%20Audio%20Design\" rel=\"noopener noreferrer\" target=\"_blank\">Rosson Audio Design<\/a>s, to the <a href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=ZMF\" rel=\"noopener noreferrer\" target=\"_blank\">ZMF Headphones<\/a> <a href=\"https:\/\/zeppelinandco.com\/products\/zmf-caldera\" rel=\"noopener noreferrer\" target=\"_blank\">Caldera<\/a>, <a href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=HEDD\" rel=\"noopener noreferrer\" target=\"_blank\">Hedd Audio<\/a>&#8216;s <a href=\"https:\/\/zeppelinandco.com\/products\/hedd-audio-heddphone-two\" rel=\"noopener noreferrer\" target=\"_blank\">HEDDPhone 2<\/a> and naturally, HIFIMANs and Abyss Headphones.<\/p>\n<p>Come and hear how Niimbus US5 Pro&#8217;s heavy hardware and expert craftsmanship of assemblers working under Fried Reim&#8217;s direction justify its top-tier pricing and place at the top of the flagship pile.<\/p>\n<p>View the sibling US5 <a href=\"https:\/\/zeppelinandco.com\/products\/violectric-niimbus-us-5\" rel=\"noopener noreferrer\" target=\"_blank\">here<\/a>, other Violectric amplifiers <a href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Violectric\" rel=\"noopener noreferrer\" target=\"_blank\">here<\/a>, or all our other amplifiers <a href=\"https:\/\/zeppelinandco.com\/collections\/dac-amp\" rel=\"noopener noreferrer\" target=\"_blank\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The most resolving amplifier \u2013 not just of Violectric&#8216;s current crop, but in all of Head-Fi. A bold claim, but a title befitting for the Niimbus US5 Pro though as it achieves both fidelity via a 135dB dynamic range, and combines that with power to drive HIFIMAN&#8216;s Susvara.\u00a0 14 watts into Susvara Unveiled certainly keeps that planar flagship ticking over and producing all the resolution it&#8217;s capable of. Niimbus, Violectric and Lake People continue to be worthy steeds for the world&#8217;s latest and greatest headphones. It clinches\u00a0StereoNET&#8216;s Applause Award and is The Ear&#8216;s Editor&#8217;s Choice, with the real award from the latter coming from them buying the review unit.\u00a0All the hallmarks of a superb voltage source are present. 16 output transistors provide superb damping factor and are fully capable of handling the current produced by US5 Pro&#8217;s dual-mono power supply and huge operating voltage. But power is nothing without control, US5 Pro says echoing Pirelli&#8217;s famous slogan. For an amplifier capable of providing so much power, the Niimbus signature move of using reed-relay resistor ladder volume controls and Violectric&#8217;s unique pre-gain system keeps noise low, and detail in your music high. [See Product Desc. For More] In there is the delicate balance Niimbus provides. US5 Pro achieves infinite headroom for listening loud on the most demanding headphones, reproducing crashing musical crescendos without the slightest hint of clipping or losing composure.\u00a0 And at the same time, Niimbus is a transient detail monster, being totally respectful of musical detail and reproducing it without undue colouration. \u201cTools, not toys\u201d is the famous Violectric slogan, yet US5 Pro&#8217;s top attributes always combine to bring us unbridled fun hearing detail that hadn&#8217;t been present before. At the heart of Niimbus&#8217; awesome performance is a power supply built upon a 60 volt operating voltage. No matter how loud you listen, US5 Pro&#8217;s massive headroom keeps individual transistors running in their most linear region in the open-loop.\u00a0 Linearity is already a given before negative feedback is applied. What goes in comes out the same \u2013 and US5 Pro&#8217;s fully-balanced, differential operation yields common-mode rejection that also lends itself to this amplifier&#8217;s huge claimed 135dB dynamic range. The true credit for that goes towards the default extremely low internal gain \u2013 all of 2dB \u2013 Niimbus works with. With lower gain comes lower noise, encouraging you to climb your volume knob and feed in more signal &#8230; only helping your ratios, and your ability to hear more of the music.\u00a0 That optimised operation only serves up the platform for US5 Pro&#8217;s reed-relay volume control \u2013 256 steps each yielding a 0.4dB difference. That yields super-precise adjustments devoid of channel imbalances, and no loss of transparency one might otherwise endure at the lowest points of a conventional potentiometer.\u00a0\u00a0 Free from the big chunk of a variable resistor in its signal path, US5 Pro switches in a couple of quality resistors of precise value for your volume setting, to enable a hyper-transparent presentation. The direct-coupled Niimbus promises frequency extension that is virtually flat from near DC to 250Khz, meaning phase response in the human hearing range is stellar and transients and dynamics are true-to-life. What strengthens this impression is clearly a tremendously high slew rate. The air and natural, sophisticated bloom to notes separates this Niimbus from all others \u2013 even its regular US5 counterpart. All this exceptional handling of US5 Pro&#8217;s small signal leads to a linearity that then gets passed over to 16 output transistors that are well capable of withstanding the amplifier&#8217;s huge operating voltage \u2013 and handling the abundant current its power supply can deliver. This all maintains the exceptional fidelity Niimbus receives from your source, to be passed over accurately \u2013 with minimal distortion \u2013 to your flagship headphones.\u00a0 With every other popular flaghip planar-magnetic headphone taking the low-impedance route, having the power reserves and voltage headroom of Niimbus will serve you ably now and in the future. US5 Pro drives everything, from IEMs on the right pre-gain setting, to becoming the sweet spot for Final Audios, Focals, Fostexs and Rosson Audio Designs, to the ZMF Headphones Caldera, Hedd Audio&#8216;s HEDDPhone 2 and naturally, HIFIMANs and Abyss Headphones. Come and hear how Niimbus US5 Pro&#8217;s heavy hardware and expert craftsmanship of assemblers working under Fried Reim&#8217;s direction justify its top-tier pricing and place at the top of the flagship pile. View the sibling US5 here, other Violectric amplifiers here, or all our other amplifiers here.<\/p>\n","protected":false},"featured_media":13015,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[139],"product_cat":[398,26],"product_tag":[168,384,179,227,182],"pa_accessories":[],"pa_headphones":[],"pa_connection":[],"pa_fit":[],"pa_type":[],"pa_cases":[],"class_list":["post-12928","product","type-product","status-publish","has-post-thumbnail","product_brand-violectric","product_cat-all-products","product_cat-dac-amp","product_tag-audio","product_tag-brand_violectric","product_tag-dac-amps","product_tag-desktop-dac-amps","product_tag-solid-state","entry","has-media","first","onbackorder","shipping-taxable","purchasable","product-type-simple","col","span_1_of_4","owp-content-left","owp-thumbs-layout-horizontal","owp-btn-very-big","owp-tabs-layout-vertical"],"acf":[],"_links":{"self":[{"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/product\/12928","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/comments?post=12928"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/media\/13015"}],"wp:attachment":[{"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/media?parent=12928"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/product_brand?post=12928"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/product_cat?post=12928"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/product_tag?post=12928"},{"taxonomy":"pa_accessories","embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/pa_accessories?post=12928"},{"taxonomy":"pa_headphones","embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/pa_headphones?post=12928"},{"taxonomy":"pa_connection","embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/pa_connection?post=12928"},{"taxonomy":"pa_fit","embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/pa_fit?post=12928"},{"taxonomy":"pa_type","embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/pa_type?post=12928"},{"taxonomy":"pa_cases","embeddable":true,"href":"https:\/\/theaudiopeople.com.vn\/vi\/wp-json\/wp\/v2\/pa_cases?post=12928"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}