{"product_id":"cayin-c9ii","title":"Cayin C9ii | Portable Headphone Amplifier","description":"\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto; width: 65%;\" alt=\"Cayin gold logo with shadow\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/cayin-logo-gold-shadow.jpg?v=1691786430\"\u003e\u003c\/p\u003e\n\u003ch4\u003eThe Cayin C9ii Sets a New Benchmark in Sonic Excellence with Three Versatile Timbre Options, Class A\/AB\/Hyper Amplification Modes and Advanced Power Management\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Amplification Circuit:\u003c\/strong\u003e Fully discrete, fully symmetric differential amplification with a three-stage circuit design for superior load-driving capability and enhanced transparency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Amplification Modes:\u003c\/strong\u003e Offers Class A and Class AB modes, along with the newly introduced Hyper Mode, maximizing circuit performance for superior fidelity, dynamics, and soundstage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Timbre Options:\u003c\/strong\u003e Features Tube Timbre with dual \u003ca href=\"https:\/\/www.korgnutube.com\/en\" rel=\"noopener\" target=\"_blank\"\u003eKORG Nutube 6P1\u003c\/a\u003e vacuum tubes for warm, analog-rich sound, Solid-State Timbre for a clean and precise sound profile, and Bypass Timbre for uncolored output, ensuring versatility for different listening preferences.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Quality Power Management:\u003c\/strong\u003e Powered by four high-capacity 21700 batteries with an advanced power supply circuit to ensure stable, high-current delivery for all modes and timbre options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Cayin C9ii headphone amplifier features diagram\" height=\"1365\" width=\"2048\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/cayin-c9ii-features.webp?v=1737578398\"\u003e\u003c\/p\u003e\n\u003ch3\u003ePremium Amplification Technology\u003c\/h3\u003e\n\u003cp\u003eThe Cayin C9ii features a fully discrete, fully symmetric differential amplification architecture with a sophisticated three-stage design. This approach ensures unmatched transparency, a wide dynamic range, and precision in audio reproduction. Its enhanced load-driving capability caters to even the most demanding headphones and IEMs, allowing the C9ii to deliver a balanced, high-fidelity listening experience with ease.\u003c\/p\u003e\n\u003ch3\u003eThree Amplification Modes\u003c\/h3\u003e\n\u003cp\u003eDesigned to cater to diverse listening preferences, the C9ii offers three distinct amplification modes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass A Mode\u003c\/strong\u003e provides rich harmonic textures and a natural, organic sound signature, ideal for immersive music sessions.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass AB Mode\u003c\/strong\u003e balances efficiency and sonic detail, delivering a cleaner sound with tighter control over dynamics.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHyper Mode\u003c\/strong\u003e takes performance to the next level by optimizing the circuit for enhanced soundstage depth, superior dynamics, and crystal-clear fidelity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHeavy-Duty Timbre Circuit\u003c\/h3\u003e\n\u003cp\u003eThe Cayin C9ii features an advanced Gen5 Nutube 6P1 vacuum tube circuit with a fully discrete JFET buffering architecture, paired with a high-performance constant current source design.\u003c\/p\u003e\n\u003cp\u003eThis state-of-the-art three-stage low-gain buffering timbre circuit employs a matched pair of Nutubes as low-gain voltage amplifiers, enabling enhanced load-driving capability.\u003c\/p\u003e\n\u003cp\u003eTo achieve superior audio performance, the circuit integrates 16 \u003ca rel=\"noopener\" href=\"https:\/\/toshiba.semicon-storage.com\/us\/semiconductor\/product\/mosfets\/detail.2SK209.html\" target=\"_blank\"\u003eToshiba 2SK209\u003c\/a\u003e audio-grade JFETs, ensuring stable and consistent current regardless of varying voltage loads. This innovative design delivers a rich, authentic timbre, allowing for precise and dynamic sound reproduction across all listening scenarios.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/cayin-c9ii-thumb-four.webp?v=1737578826\" width=\"2048\" height=\"1365\" alt=\"Cayin C9ii portable headphone amplifier closeup of outputs laying on black table\"\u003e\u003c\/p\u003e\n\u003ch3\u003eVersatile Timbre Selection\u003c\/h3\u003e\n\u003cp\u003eThe C9ii takes customization further with three selectable timbre options:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Timbre\u003c\/strong\u003e utilizes dual KORG Nutube 6P1 vacuum tubes to produce a warm, lush analog sound that exudes musicality.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid-State Timbre\u003c\/strong\u003e offers a clean and precise sound signature with remarkable clarity and resolution.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBypass Timbre\u003c\/strong\u003e provides a neutral and uncolored signal, preserving the original sound of your audio source.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese timbre options allow users to tailor the audio output to suit their preferences or specific genres of music, delivering unparalleled versatility.\u003c\/p\u003e\n\u003ch3\u003eFlexible Connectivity Options\u003c\/h3\u003e\n\u003cp\u003eThe C9ii ensures compatibility with a variety of audio setups thanks to its balanced (4.4mm) and single-ended (3.5mm) inputs and outputs. This versatility allows the amplifier to seamlessly integrate into both portable and desktop systems, accommodating a wide range of headphones and source devices.\u003c\/p\u003e\n\u003ch3\u003eHigh-Quality Power Supply\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the C9ii’s reliable performance is its robust power supply, powered by four high-capacity 21700 rechargeable batteries. These batteries provide extended playtime, ensuring uninterrupted audio enjoyment. The advanced power management circuit delivers a stable, high-current supply, guaranteeing consistent performance across all amplification modes and timbre settings.\u003c\/p\u003e\n\u003ch3\u003eUnparalleled Sound Performance\u003c\/h3\u003e\n\u003cp\u003eThe Cayin C9ii is meticulously tuned to deliver the ultimate audio experience, transcending the boundaries of portable amplification. Whether you prefer rich analog warmth, precise solid-state detail, or a neutral and uncolored sound, the C9ii adapts to suit your needs.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Inputs\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e3.5mm TRS\u003c\/li\u003e\n\u003cli\u003e4.4mm TRRRS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Outputs\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e3.5mm TRS\u003c\/li\u003e\n\u003cli\u003e4.4mm TRRRS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimbre Circuit (Tube):\u003c\/strong\u003e KORG Nutube 6P1 x2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimbre Circuit (SS):\u003c\/strong\u003e Toshiba 2SK209 JFET x 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput differential Amp:\u003c\/strong\u003e LIS LSK489 + LSJ689 JFET x 4 \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic Volume Control:\u003c\/strong\u003e MUSES72320x2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e Samsung INR18650-35E (3400mAh) x4\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 165 x 88.5 x 30mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 650g\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/Cayin_C9ii_Specs.jpg?v=1737578150\"\u003eC9ii Product and Battery Specs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/Cayin_C9ii_Headphone_Output_Info.jpg?v=1737578151\"\u003eC9ii Headphone Output Specs\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eC9ii Portable Headphone Amplifier\u003c\/li\u003e\n\u003cli\u003eC9ii Battery Module\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSingle-ended Portable Interconnect (3.5mm to 3.5mm)\u003c\/li\u003e\n\u003cli\u003eBalanced Portable Interconnect (4.4mm to 4.4mm)\u003c\/li\u003e\n\u003cli\u003eSamsung Samsung INR18650-35E Batteries x4\u003c\/li\u003e\n\u003cli\u003eUSB-C Charging cable\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUser Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/cayin-c9ii-in-the-box.webp?v=1737578982\" width=\"2048\" height=\"1000\" alt=\"Cayin C9ii portable headphone amplifier in the box\"\u003e\u003c\/p\u003e","brand":"Cayin","offers":[{"title":"Black","offer_id":41778581078091,"sku":"CAY-C9ii-BLK","price":2399.0,"currency_code":"USD","in_stock":true},{"title":"Titanium","offer_id":41813332656203,"sku":"CAY-C9ii-TI","price":2399.0,"currency_code":"USD","in_stock":true},{"title":"Black Open Box","offer_id":41778581110859,"sku":"CAY-C9ii-OB","price":2099.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/cayin-c9ii-main-thumb.webp?v=1737578822","url":"https:\/\/bloomaudio.mom\/products\/cayin-c9ii","provider":"Bloom Audio","version":"1.0","type":"link"}