{"id":19047,"date":"2025-10-10T08:25:43","date_gmt":"2025-10-10T08:25:43","guid":{"rendered":"https:\/\/hd-multimedia.com\/?post_type=product&#038;p=19047"},"modified":"2026-08-20T07:38:44","modified_gmt":"2026-08-20T07:38:44","slug":"cayin-ru9","status":"publish","type":"product","link":"https:\/\/hd-multimedia.com\/en\/trgovina\/cayin-ru9\/","title":{"rendered":"Cayin RU9"},"content":{"rendered":"<p>The Cayin RU9 offers exceptional versatility with dual 3.5mm and 4.4mm audio outputs, each with 3-step gain and output level control. The device supports comprehensive digital audio protocols, including S\/PDIF input\/output and USB Audio DAC (with UAC1.0 and UAC2.0 compatibility. Enhanced with Bluetooth 5.1 technology powered by Qualcomm QCC5125, it supports premium audio codecs, including LDAC, aptX HD, aptX Adaptive, AAC and SBC for superior wireless audio transmission.<\/p>\n<p>The Cayin RU9 is meticulously designed with the user experience in mind, with a sleek display with adjustable brightness, a premium knurled volume knob, and tactile buttons for precise control. At its heart lies the innovative Nutube 6P1 window, precisely cut using laser micro-drilling technology to block EMI while displaying the warm glow of the tube during playback. An intuitive multi-color indicator system effectively displays playback details.<\/p>\n<p>Yellow \u2013 44.1 kHz\/48 kHz<br \/>\nGreen \u2013 88.2 kHz\/96 kHz<br \/>\nDark Blue \u2013 176.4 kHz\/192 kHz<br \/>\nViolet \u2013 352.8 kHz\/384 kHz<br \/>\nLight Blue \u2013 705.6 kHz\/768 kHz<br \/>\nWhite \u2013 DSD64\/DSD128\/DSD256\/DSD512<br \/>\nRed \u2013 Charging indicator<\/p>\n<p><a href=\"https:\/\/en.cayin.cn\/parameter\/7\/124\/709.html\" target=\"_blank\" rel=\"noopener\">Detailed specifications for RU9<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>The Cayin RU9 is a premium portable DAC and amplifier that combines dual AK4493SEQ DAC chips, KORG Nutube 6P1 vacuum tube technology and Gen5 3-stage amplification in a compact 150g package. This versatile device supports high-resolution audio up to DSD512 and PCM 32bit\/768kHz, has 3.5mm and 4.4mm outputs with 3-stage gain control and offers multiple modes, including Performance-enhancing Hyper Mode. With Bluetooth 5.1 supporting premium codecs like LDAC and aptX HD, CNC machined aluminum housing, magnetic leather case and intuitive controls with a 0.96\u2033 screen, the Cayin RU9 is the ultimate solution for audiophiles looking for exceptional portable audio performance.<\/p>\n<p><strong>This is the last copy from the window display!<\/strong><\/p>\n<p><a href=\"https:\/\/en.cayin.cn\/features\/7\/124\/709.html\" target=\"_blank\" rel=\"noopener\">Link for additional product information!<\/a><\/p>","protected":false},"featured_media":19063,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"class_list":["post-19047","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-cayin","product_cat-mobilni-osobni-audio-pojacala-smartphone","desktop-align-center","tablet-align-center","mobile-align-center"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - 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