{"id":6856,"date":"2024-09-16T00:26:07","date_gmt":"2024-09-16T04:26:07","guid":{"rendered":"https:\/\/hifisquare.com\/product\/fiio-k9-desktop-headphone-amp-dac\/"},"modified":"2024-09-16T00:26:07","modified_gmt":"2024-09-16T04:26:07","slug":"fiio-k9-desktop-headphone-amp-dac","status":"publish","type":"product","link":"https:\/\/hifisquare.com\/ja\/product\/fiio-k9-desktop-headphone-amp-dac\/","title":{"rendered":"FiiO K9 Desktop Headphone Amp\/DAC"},"content":{"rendered":"<h1><b>Balanced. Budget.<br \/><\/b><\/h1>\n<p><span style=\"font-weight: 400;\">The FiiO K9 Desktop DAC\/Amp is a mid-fi heavyweight. From the DAC to the amplification to the volume adjustment, every part of the K9 is truly balanced for greatly reduced crosstalk and distortion. Featuring Bluetooth 5.1, dual THX chips, and dual ESS DAC chips, it provides everything you need to enjoy extremely high-res sound files like LDAC, 32-bit\/768kHz PCM, and DSD512.<br \/><\/span><\/p>\n<h2><b>Dual DAC chips for truly balanced decoding<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Two ES9068AS DAC chips decode the left and right channels separately, providing a truly balanced experience. These 32-bit chips use ESS\u2019 Hyperstream II architecture boasting high dynamic range and extremely low distortion.\u00a0<\/span><\/p>\n<h2><b>High-end THX amplifier for linear sound<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The signal is passed from the DAC chips to the dual THX AAA 788+ amplifier chips, which provide an extraordinary 780mW of output power at 300\u03a9 and up to 2000mW of output power at 32\u03a9. Known for their low distortion, these amplifier chips serve up a clean and linear sound profile.<br \/><\/span><\/p>\n<h2><b>Bluetooth 5.1\u00a0<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Enjoy the latest hi-fi Bluetooth codecs like LDAC and aptX HD thanks to the K9\u2019s Bluetooth 5.1 chip. Faster and more stable than previous BT versions, Bluetooth 5.1 is even better at providing latency-free hi-def playback.<br \/><\/span><\/p>\n<h2><b>Partitioned design maximizes performance<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The PCB of the K9 features a partitioned layout, fully separating the major sections of the audio circuit: the power supply, signals, and analog signal loop. This guarantees lower distortion and crosstalk for an altogether cleaner output signal.<br \/><\/span><\/p>\n<h2><b>Isolated digital and analog section power supply<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">In addition to the partitioned PCB, the power supplies are also isolated, delivering power to the analog and digital portions separately to further reduce interference.<br \/><\/span><\/p>\n<h2><b>Dual-mode clock management<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Accurate and stable dual-mode clock management allows the K9 to easily play back even 32-bit\/768kHz high-resolution audio with incredible fidelity.<br \/><\/span><\/p>\n<h2><b>120-step volume potentiometer<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The dampened volume knob is powered by ADC curve reconstruction that allows you to precisely and smoothly adjust between 120 levels of volume, with minimal noise and volume deviation between left and right channels.<\/span><\/p>\n<h3><b>\u30b9\u30da\u30c3\u30af<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">DAC: ES9068AS x2<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Decoding chip: XMOS XUF 208<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Amplifier: Dual THX AAA 788+<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Bluetooth chip: QCC5124 Bluetooth 5.1<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Bluetooth format support: LDAC, aptX Adaptive, aptX HD, aptX, aptX LL, AAC, SBC<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Outputs: 6.35mm, 4.4mm, XLR-4, RCA, XLR<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Inputs: USB, optical, coaxial, RCA, 4.4mm<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Output power 1: L+R \u22652000mW + 2000mW (32\u03a9 balanced\/ THD+N <1%)<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Output power 2: L+R \u2265780mW + 780mW (300\u03a9 balanced\/ THD+N <1%)<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">SNR: \u2265124dB (A-weighted, UAC)<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Noise floor: PO <4.8uV (A-weighted, UAC); BAL <9.3uV (A-weighted, UAC)<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Output impedance: <1\u03a9 (32\u03a9 load)<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Weight: About 5.8lbs (2660g)<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Dimensions: 7.8\u201d x 8.7\u201d x 2.8\u201d (200 x 224.5 x 72mm)<\/span><\/li>\n<\/ul>\n<p><!----><\/p>","protected":false},"excerpt":{"rendered":"<p>Balanced. Budget. The FiiO K9 Desktop DAC\/Amp is a mid-fi heavyweight. From the DAC to the amplification to the volume&#8230;<\/p>","protected":false},"featured_media":7252,"comment_status":"open","ping_status":"closed","template":"","meta":[],"etheme_brands":[],"product_brand":[],"product_cat":[15],"product_tag":[184],"class_list":{"0":"post-6856","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-other","7":"product_tag-usb-dac","9":"first","10":"instock","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.8 (Yoast SEO v24.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>FiiO K9 Desktop Headphone Amp\/DAC - HIFISQUARE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hifisquare.com\/ja\/product\/fiio-k9-desktop-headphone-amp-dac\/?wmc-currency=JPY\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"FiiO K9 Desktop Headphone Amp\/DAC\" \/>\n<meta property=\"og:description\" content=\"Balanced. 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