{"product_id":"fiio-k3-usb-dsd-dac-amp","title":"FiiO K3 USB DSD DAC\/Amp - Discontinued","description":"\u003ch2\u003eK3 Headphone Amplifier \u0026amp; USB-C DAC\u003c\/h2\u003e\n\u003ch3\u003ePocket-sized Power Flexibility\u003c\/h3\u003e\n\u003cp\u003e2 USB audio modes | PCM384k\/DSD256 decoding |\u003cbr\u003eDual headphone outputs Dual digital audio outputs | ADC volume control\u003c\/p\u003e\n\u003ch3\u003eBoost your computer's sound with capable decoding\u003c\/h3\u003e\n\u003cp\u003eEquipped with an XMOS USB receiver chip, the K3 is capable of decoding up to 384kHz\/32 bit PCM and native DSD256 – the same as many DACs costing much more. The K3's dual crystal oscillators ensure that any digital audio signal being fed into the DAC are exactly correct for further enhanced sound quality. Just connect the K3 to your computer via USB to instantly upgrade to high-fidelity sound, and enjoy your music the way it was meant to be heard.\u003c\/p\u003e\n\u003ch3\u003eHighly optimized architecture for maximum potential\u003c\/h3\u003e\n\u003cp\u003eThe K3's well-thought-out internal design consists of two main layers, working  together perfectly in harmony. Digital processing is carried out by the high- performance AKM AK4452 with 32-bit VELVET SOUND technology and fully differential outputs for true balanced output, while the analog signals are handled and amplified by a design consisting of LPF\/voltage amplification and a current drive circuit.\u003c\/p\u003e\n\u003ch3\u003eWash away the noise with low-distortion op-amps \u003c\/h3\u003e\n\u003cp\u003eThe combination of the proven OPA926 with its low-distortion, low-noise, and high output swing along with the professional-grade TI OPA1612 acting as the low-pass  filter (LPF) ensures the K3 effortlessly provides highly resolving sound, pumping out 320mW at 16Ω from the balanced output.\u003c\/p\u003e\n\u003ch3\u003eSimply reliable USB power\u003c\/h3\u003e\n\u003cp\u003eThe K3 adopts the modern USB Type-C input interface for a more reliable and stable connection, including that of power. However, care to ensure an uncompromised power supply doesn't stop there – the K3 implements overvoltage protection (OVP) and a double-filter circuit to ensure power supply stability, while the digital and analog audio circuits each get their own power supply to greatly reduce crosstalk.\u003c\/p\u003e\n\u003ch3\u003eNo more channel imbalances with ADC volume control\u003c\/h3\u003e\n\u003cp\u003eThe secret to effectively eliminating channel volume imbalances is to use an ADC volume control, which is implemented in the K3. Plus, an added side benefit is that by reconstructing the ADC curve, the user is able to smoothly adjust the volume to a more accurate and finer degree, allowing the K3 to be used with headphones of all kinds of sensitivity for a variety of listening needs.\u003c\/p\u003e\n\u003ch3\u003eGain and bass switches to enhance your experience\u003c\/h3\u003e\n\u003cp\u003eThe switch for high and low gain ensures that you  can use the K3 with a wide variety of headphones, and that your listening volume needs are covered. The hardware bass boost switch enhances the dynamic range of the lower frequencies and gives them some extra punch to really make your songs, games, and movies come to life.\u003c\/p\u003e\n\u003ch3\u003eTiny round goodness in the palm of your hand\u003c\/h3\u003e\n\u003cp\u003eThe all-aluminum black body has been painstakingly CNC-machined, anodized, and sandblasted to ensure that the K3 feels robust yet perfectly textured for a great feel in your hands. Combined with its small size, you  can easily take the K3 wherever you need to.\u003c\/p\u003e\n\u003ch3\u003eTwo modes for many situations\u003c\/h3\u003e\n\u003cp\u003eSometimes, you may not have access to a device that can connect to the K3 via USB  Audio Class 2. In these situations, you can go to USB Audio Class 1 mode with just  the flick of a switch.\u003c\/p\u003e\n\u003cp\u003eFor certain situations, you can use the 1.0 mode to enjoy up to 96kHz\/24-bit PCM audio without needing any drivers.\u003c\/p\u003e\n\u003cp\u003eIn high-performance applications, you can use the 2.0 mode to enjoy up to 384kHz\/DSD 256 decoding.\u003c\/p\u003e\n\u003cp\u003e*Using the 2.0 mode requires downloading and installing the FiiO USB driver \u003cbr\u003e*After switching USB modes, you need to either turn the K3 off and on, or unplug and plug in the USB cable.\u003c\/p\u003e\n\u003ch3\u003eA distinctly cohesive tactile audiovisual experience\u003c\/h3\u003e\n\u003cp\u003eThe volume knob, with 45° notches etched onto its surface and perfectly sized to allow easy one-finger operation, is designed to perfectly blend in with the curves of the K3's body for a distinctive touch. Next to the volume knob is an RGB light that indicates what kind of digital audio is being input to the K3, visually confirming what you are hearing in your music.\u003c\/p\u003e\n\u003ch3\u003eDifferent connection options for different scenarios\u003c\/h3\u003e\n\u003cp\u003e1. Connect it to a desktop computer\u003c\/p\u003e\n\u003cp\u003e2. Use the driverless 1.0 mode for business trips\u003c\/p\u003e\n\u003cp\u003e3. Make it a digital turntable connected to an external decoder\u003c\/p\u003e\n\u003cp\u003e4. Connect it to a speaker, using the K3 as a DAC\u003c\/p\u003e\n\u003ch3\u003eDual headphone jacks\u003c\/h3\u003e\n\u003cp\u003eBeing optimized for indoor desktop use, the K3 is equipped with both 3.5mm single-ended and 2.5mm balanced headphone jacks. Both outputs have audio jack detection, which means that when headphones are inserted into the balanced out, balanced boost automatically kicks in resulting in about a 50% output power increase compared to the single-ended out.\u003c\/p\u003e\n\u003ch3\u003eLine out connector\u003c\/h3\u003e\n\u003cp\u003eThe 3.5mm line out is driven directly by the OPA1612 op-amp, to ensure as little sound quality reduction as possible. The line out output is also adjustable with maximum power output up to 2Vrms, to ensure compatibility with a wide variety of active speakers and external amplifiers.\u003c\/p\u003e\n\u003cp\u003e*When using the line out, please disconnect any headphones\u003c\/p\u003e\n\u003ch3\u003eCoaxial and Optical digital outs\u003c\/h3\u003e\n\u003cp\u003eThe XMOS USB receiver chip in the K3 directly converts any USB audio input to digital signals output via the coaxial and optical connectors, allowing you to connect to speaker systems, amplifiers, or other external decoders.\u003c\/p\u003e\n\u003cp\u003e*The volume knob does not control digital output volume *The K3 can output digital audio signals up to 192kHz and DSD64 over DoP. Please adjust the settings of the device you are connecting the K3 to if the device does not support the digitally output format.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable border=\"1\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eK3\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eColor\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBlack\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e82g\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e70×58×22mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eVolume Knob\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eADC\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAudio Input\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSB Type-C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eUSB Audio\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSB 1.0 \/ USB 2.0\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSB Chip\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eXMOS XUF208\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eUSB Driver\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eASIO\/KS\/DS\/WASAPI\/DSD DOP(Native)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDAC\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAKM AK4452\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDriver OP AMP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOPA926×2\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLPF OP AMP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTI OPA1612\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eGain Boost\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eL\/H\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBass Boost\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0\/+6dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeadphone Out 1\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.5mm single-ended output\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHeadphone Out 2\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.5mm TRRS balanced output\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLine Out\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCoaxial Out\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRCA for 192kHz, support DSD64 DOP\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOptical Out\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 96kHz\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDrive Ability\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16-150 Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutput Power 1\u003cbr\u003e(3.5mm headphone output)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e220mW(16Ω); 120mW(32Ω)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOutput Power 2\u003cbr\u003e(2.5mm headphone output)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e320mW(16Ω); 200mW(32Ω)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Input\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRecommend DC5V 500mA\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBattery Capacity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTHD+N\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≤0.004%\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOutput Impedance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e＜1.04 Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFrequency Response\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20 Hz~80 kHz\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSNR\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026gt;113 dB (A-weighted)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLine Level\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.9Vrms\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCrosstalk\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≥70 dB (1 kHz)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMAX Output Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7.39 Vp-p\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMAX Output Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e81.6 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"FiiO","offers":[{"title":"Default Title","offer_id":18379940790387,"sku":"K3 New","price":109.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/products\/846302.jpg?v=1762457465","url":"https:\/\/audio46.mom\/products\/fiio-k3-usb-dsd-dac-amp","provider":"Audio46 Headphone Store","version":"1.0","type":"link"}