{"product_id":"fiio-k9-pro","title":"FiiO K9 Pro – Flagship Desktop DAC \u0026 Headphone Amplifier with THX-AAA 788+","description":"\u003ch1 data-path-to-node=\"7\"\u003eFiiO K9 Pro ESS Flagship Desktop Balanced DAC \u0026amp; Headphone Amplifier\u003c\/h1\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eThe Reference Standard for Desktop Audio.\u003c\/b\u003e The \u003cb data-path-to-node=\"8\" data-index-in-node=\"46\"\u003eFiiO K9 Pro ESS\u003c\/b\u003e is designed for the uncompromising audiophile. As the evolved flagship of the K series, it combines the industry's most powerful DAC chips with a robust linear power supply and legendary THX amplification. It isn't just an amplifier; it is the ultimate command center for your entire Hi-Fi system.\u003c\/p\u003e\n\u003chr data-path-to-node=\"9\"\u003e\n\u003ch2 data-path-to-node=\"10\"\u003eUnrivaled Processing Power\u003c\/h2\u003e\n\u003cp\u003eDual ES9038PRO Flagship DACs\u003c\/p\u003e\n\u003cp\u003eInside the K9 Pro ESS lies a beast: two ESS ES9038PRO DAC chips, one for each channel. These are 8-channel desktop-class processors, capable of rendering texture, depth, and micro-details that mobile chips simply cannot match. With extremely low distortion (THD+N \u0026lt;0.00025%), you hear the music exactly as the recording engineer intended.\u003c\/p\u003e\n\u003cp\u003eTHX AAA 788+ Amplification\u003c\/p\u003e\n\u003cp\u003ePower meets purity. The K9 Pro ESS features the celebrated THX AAA 788+ linear amplifier technology. It delivers a massive 2100mW of power (at 32Ω) while keeping distortion vanishingly low. Whether you are driving sensitive IEMs or demanding planar magnetic headphones, the K9 Pro ESS handles them with effortless dynamics.\u003c\/p\u003e\n\u003chr data-path-to-node=\"13\"\u003e\n\u003ch2 data-path-to-node=\"14\"\u003ePure Power, Pure Sound\u003c\/h2\u003e\n\u003cp\u003eBuilt-in Linear Power Supply\u003c\/p\u003e\n\u003cp\u003eUnlike lesser amplifiers that use external switching power bricks, the K9 Pro ESS integrates a custom toroidal transformer directly into the chassis. This linear power supply, combined with high-end Japanese Nichicon capacitors, ensures a steady, clean flow of energy, resulting in a darker background and richer, punchier bass.\u003c\/p\u003e\n\u003cp\u003eFully Balanced Architecture\u003c\/p\u003e\n\u003cp\u003eFrom the DAC to the volume control to the amplifier, every stage of the K9 Pro ESS is fully balanced. This differential signaling effectively eliminates crosstalk and external interference, providing a massive soundstage with precise imaging.\u003c\/p\u003e\n\u003chr data-path-to-node=\"17\"\u003e\n\u003ch2 data-path-to-node=\"18\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable data-path-to-node=\"19\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetailed Specification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,1,0,0\"\u003e\u003cb data-path-to-node=\"19,1,0,0\" data-index-in-node=\"0\"\u003eDAC Chipset\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,1,1,0\"\u003eDual ESS ES9038PRO (Desktop Class)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,2,0,0\"\u003e\u003cb data-path-to-node=\"19,2,0,0\" data-index-in-node=\"0\"\u003eAmp Technology\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,2,1,0\"\u003eDual THX AAA 788+\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,3,0,0\"\u003e\u003cb data-path-to-node=\"19,3,0,0\" data-index-in-node=\"0\"\u003ePower Supply\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,3,1,0\"\u003eBuilt-in Linear Toroidal Transformer\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,4,0,0\"\u003e\u003cb data-path-to-node=\"19,4,0,0\" data-index-in-node=\"0\"\u003eOutput Power\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,4,1,0\"\u003e≥2100mW (32Ω Balanced) \/ ≥1100mW (300Ω Balanced)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,5,0,0\"\u003e\u003cb data-path-to-node=\"19,5,0,0\" data-index-in-node=\"0\"\u003eBluetooth Chip\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,5,1,0\"\u003eQualcomm QCC5124 (LDAC, aptX HD, aptX Adaptive)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,6,0,0\"\u003e\u003cb data-path-to-node=\"19,6,0,0\" data-index-in-node=\"0\"\u003eInputs\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,6,1,0\"\u003eUSB-B, USB-C, Optical, Coaxial, RCA, 4.4mm Balanced\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,7,0,0\"\u003e\u003cb data-path-to-node=\"19,7,0,0\" data-index-in-node=\"0\"\u003eOutputs\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,7,1,0\"\u003eXLR-4, 4.4mm Balanced, 6.35mm SE, XLR Line-Out, RCA Line-Out\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,8,0,0\"\u003e\u003cb data-path-to-node=\"19,8,0,0\" data-index-in-node=\"0\"\u003eDimensions\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,8,1,0\"\u003e200 x 224.5 x 72 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,9,0,0\"\u003e\u003cb data-path-to-node=\"19,9,0,0\" data-index-in-node=\"0\"\u003eWeight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,9,1,0\"\u003eApprox. 2.75kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr data-path-to-node=\"20\"\u003e\n\u003ch2 data-path-to-node=\"21\"\u003eWhy Choose the K9 Pro ESS?\u003c\/h2\u003e\n\u003cul data-path-to-node=\"22\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"22,0,0\"\u003e\u003cb data-path-to-node=\"22,0,0\" data-index-in-node=\"0\"\u003eGold Standard Build:\u003c\/b\u003e Features the signature \u003cb data-path-to-node=\"22,0,0\" data-index-in-node=\"44\"\u003eGold PVD Volume Knob\u003c\/b\u003e and internal gold-plated PCB traces, symbolizing its flagship status.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"22,1,0\"\u003e\u003cb data-path-to-node=\"22,1,0\" data-index-in-node=\"0\"\u003eMQA Full Decoding:\u003c\/b\u003e Supports 8x MQA unfolding for studio-quality streaming from Tidal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"22,2,0\"\u003e\u003cb data-path-to-node=\"22,2,0\" data-index-in-node=\"0\"\u003eComprehensive Bluetooth:\u003c\/b\u003e Not just a wired beast, it supports high-res Bluetooth 5.0 reception for convenient wireless playback.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"22,3,0\"\u003e\u003cb data-path-to-node=\"22,3,0\" data-index-in-node=\"0\"\u003eSide-Mounted USB-C:\u003c\/b\u003e Thoughtfully designed with a USB-C port on the side for quickly connecting a phone or tablet without reaching behind the unit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"23\"\u003e\n\u003ch2 data-path-to-node=\"24\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003eWhat is the difference between K9 and K9 Pro ESS?\u003c\/p\u003e\n\u003cp\u003eThe K9 Pro ESS uses the superior Dual ES9038PRO DACs (vs. ES9068AS in the K9) and features a more advanced internal layout with premium components. Visually, the K9 Pro has a gold volume knob, while the K9 is black.\u003c\/p\u003e\n\u003cp\u003eCan I use it as a pre-amp for my speakers?\u003c\/p\u003e\n\u003cp\u003eAbsolutely. The K9 Pro ESS has dedicated XLR and RCA Line-outs. Switch to \"PRE\" mode to control the volume of your active speakers or power amp using the K9 Pro's high-precision knob.\u003c\/p\u003e\n\u003cp\u003eDoes it heat up?\u003c\/p\u003e\n\u003cp\u003eAs a high-power Class AB equivalent amplifier with a linear power supply, it will get warm. This is normal and indicates the components are operating at optimal performance. The aluminum chassis acts as an efficient heat sink.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMake it Wireless: Connect the\u003ca href=\"https:\/\/emiuzek.com\/products\/fiio-sr11\" target=\"_blank\" title=\"fiio sr11\" rel=\"noopener\"\u003e \u003cb data-path-to-node=\"38,1,0\" data-index-in-node=\"35\"\u003eFiiO SR11\u003c\/b\u003e\u003c\/a\u003e via USB or Coaxial to add Roon Ready and AirPlay streaming to your K9 Pro ESS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fiio","offers":[{"title":"Black \/ US","offer_id":43722957389917,"sku":null,"price":939.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ AU","offer_id":43722957422685,"sku":null,"price":939.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ EU","offer_id":43722957455453,"sku":null,"price":939.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ UK","offer_id":43722957488221,"sku":null,"price":939.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/FiioK9Pro1.webp?v=1758808758","url":"https:\/\/emiuzek.com\/ja\/products\/fiio-k9-pro","provider":"EMiUZEK","version":"1.0","type":"link"}