{"product_id":"fiio-k13-r2r-ausiniu-stiprintuvas-su-dac","title":"FiiO K13 R2R, headphone amplifier with DAC","description":"\u003cp\u003e\u003cstrong\u003eFiiO K13 R2R\u003c\/strong\u003e is a high-end stationary DAC and headphone amplifier with a true 24-bit R2R resistor array, designed for people looking for natural, musical and detailed sound. Fully balanced architecture, NOS\/OS modes and powerful amplification allow you to get the most out of both headphones and IEMs.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eDAC:\u003c\/strong\u003e fully differential 24-bit R2R\u003cbr\u003e \u003cstrong\u003eUSB chip:\u003c\/strong\u003e XMOS XU316\u003cbr\u003e \u003cstrong\u003eBluetooth codecs:\u003c\/strong\u003e LDAC \/ AAC \/ SBC\u003cbr\u003e \u003cstrong\u003eFrequency range:\u003c\/strong\u003e 20 Hz - 80 kHz\u003cbr\u003e \u003cstrong\u003eSNR:\u003c\/strong\u003e ≥116dB\u003cbr\u003e \u003cstrong\u003eTHD+N:\u003c\/strong\u003e ~0.017%\u003cbr\u003e \u003cstrong\u003eOutput impedance:\u003c\/strong\u003e \u0026lt;1 Ω\u003cbr\u003e \u003cstrong\u003eDisplay:\u003c\/strong\u003e LCD \u003c\/p\u003e\n\n\u003cp\u003e\u003ciframe width=\"800\" height=\"407\" src=\"https:\/\/www.youtube.com\/embed\/lTNFjqzkVe4\" title=\"HOW IS THIS POSSIBLE? Fiio K13 R2R DAC Review\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\n\u003ch4\u003e DESCRIPTION\u003c\/h4\u003e\n\n\u003cp\u003e \u003cstrong\u003e24-bit fully balanced R2R desktop DAC and headphone amplifier\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e Fully differential true 24-bit R2R DAC resistor arrays\u003cbr\u003e NOS\/OS dual modes\u003cbr\u003e 2400 mW + 2400 mW powerful output power\u003cbr\u003e Bluetooth\u003cbr\u003e DC\/AC dual power supply\u003cbr\u003e 10-band high-precision PEQ\u003cbr\u003e Fully balanced audio amplifier circuit\u003cbr\u003e XLR+RCA preamp\/line output\u003c\/p\u003e\n\n \u003cp\u003e\u003cstrong\u003eFully balanced true 24-bit R2R resistor arrayDAC\u003c\/strong\u003e\u003cbr\u003e FiiO's proprietary four-channel, fully balanced 24-bit R2R resistor array DAC consists of 48 precision thin-film resistors per channel, for a total of 192 resistors across four channels.\u003cbr\u003e Each resistor has an accuracy of 0.1% and low temperature drift (30 ppm). This R2R DAC gives the K13 R2R a uniquely rich and musical sound.\u003cbr\u003e The K13 R2R uses a fully differential architecture, which results in less noise and fewer FFT harmonics, resulting in a darker musical background.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eTwo NOS\/OS modes\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eTwice the fun\u003c\/strong\u003e\u003cbr\u003e NOS mode (Non-Oversampling): Maintains the original sampling rate for decoding, preserving the authentic sound and giving you an organic and immersive music experience.\u003cbr\u003e OS mode (Oversampling): Upsampling to a high sampling rate of 384 kHz for superior audio performance and an even more refined, clearer sound.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003ePreamplifier + power amplifier output\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eDesktop decoding hub\u003c\/strong\u003e \u003cbr\u003eWith a variety of inputs and outputs, this device functions as both a preamplifier and a power amplifier, catering to different listening preferences.\u003cbr\u003e It also supports PCM 384 kHz\/24-bit and DSD256 decoding, allowing high-resolution audio signals to be processed effortlessly to deliver rich sound details and an outstanding listening experience.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eTen-band high-precision PEQ\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eEffortless sound optimization\u003c\/strong\u003e\u003cbr\u003e Thanks to the XMOS XU316 platform, the K13 R2R features a specially designed PEQ* with support for 10 frequency band adjustments in all operating modes.\u003cbr\u003e With FIIO's proprietary tuning algorithm, accessible via the app or web interface, you can easily use preset tunings such as \"Retro PEQ\" or even simulate and correct the frequency response curves of headphones. You can also export, import, share, and save EQ curves, making sound optimization a breeze.\u003cbr\u003e *PEQ can be used to adjust audio signals with a sampling rate of up to PCM 192 kHz\/24-bit. \u003cbr\u003e**The web version of PEQ can be found at the following website: https:\/\/fiiocontrol.fiio.com\/. The web version of PEQ is only supported for USB input. When using other modes, you can adjust the PEQ via the FIIO Control app.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eFully symmetrical audio amplifier circuit\u003c\/strong\u003e\u003cbr\u003e The entire audio chain, including R2R DAC, LPF, volume control, and headphone amplifier, uses fully differential signal processing for excellent noise suppression, minimal distortion, and a high dynamic range. The amplifier circuit also features gain control, headphone protection mechanisms, and POP noise suppression for a robust and reliable listening experience.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eSpecially designed DC\/AC power supplies\u003c\/strong\u003e \u003cbr\u003eThe built-in 30W switching power supply is protected by a nickel-coated shield cover, which significantly increases noise immunity and ensures a cleaner power supply. In addition, it has an external DC input*, so you can combine it with a more powerful linear power supply to achieve a different sound experience.\u003cbr\u003e *Supported external DC power supply: 12 V, 2.5 A (or more than 2.5 A).\u003cbr\u003e Multi-rail power supply, robust performance: With up to 18 low-noise LDOs and 5 DC\/DC converters, this device features a multi-rail power supply that ensures a strong and clean power supply for exceptional audio output.\u003cbr\u003e Audiophile ELNA RA3 electrolytic capacitors: High-quality ELNA RA3 series audio silk film capacitors and special tantalum electrolytic capacitors work together to provide a pure, stable power supply to the device and deliver a warm, natural sound.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eRobust performance\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eEvery detail comes into its own\u003c\/strong\u003e \u003cbr\u003eWith a balanced output power of 2400 mW + 2400 mW at a load of 32 Ω, the K13 R2R can effortlessly drive both high-fidelity IEMs and headphones, realizing their full potential and reproducing every detail.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eExcellent display\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eSuperior clarity\u003c\/strong\u003e\u003cbr\u003e A specially designed, high-contrast, durable HD LCD display* shows the current status of the device at a glance, including sampling rate, volume, gain, and output mode.\u003cbr\u003e *Durable LCD display, can remain on continuously without risk of burn-in.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eMinimalist design\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eWith technological elegance\u003c\/strong\u003e\u003cbr\u003e The reinforced aluminum alloy unibody chassis, combined with a brand-new \"skylight\" design, not only continues the minimalist design language of the K11 series, but also offers a literal technological insight into the R2R resistor series. The flowing light and vibrant colors emphasize the unique technical aesthetic.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eLDAC Bluetooth in high resolution\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eEnjoy truly wireless hi-fi\u003c\/strong\u003e \u003cbr\u003eWith support for Bluetooth 5.4 and reception for LDAC\/AAC\/SBC codecs, the K13 R2R lets you immerse yourself in a world of high-quality music, even when playing wirelessly.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003ePrecisely engineered\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003ePerfect performance\u003c\/strong\u003e\u003cbr\u003e Three gain stages, three independent volume curves: Thanks to the different gain stages, the K13 R2R adapts better to different types of IEMs and headphones, ensuring a better listening experience.\u003cbr\u003e Overheating protection, overload protection: When abnormal operating conditions are detected, protective mechanisms are automatically activated to prevent damage to the device and increase safety.\u003cbr\u003e Adjustable RGB lighting: The RGB lighting not only indicates the current audio sampling rate, but you can also adjust the brightness, colors, and whether it pulses or not.\u003cbr\u003e 1-99 minute timer shutdown*: Convenient features that meet your needs.\u003cbr\u003e *The timer shutdown works once after each setting.\u003c\/p\u003e\n\n\u003ch4\u003e TECHNICAL DATA\u003c\/h4\u003e\n\n\u003cp\u003e\u003cbr\u003e Color: Black, Silver\u003cbr\u003e Main control chip (MCU): ESP32-S3 \u003cbr\u003eUSB chip: XMOS XU316\u003cbr\u003e DAC: Fully differential true 24-bit R2R DAC resistor arrays\u003cbr\u003e Volume control chip: NJW1195AV\u003cbr\u003e R2R and LPF operational amplifiers: 4x OPA1642\u003cbr\u003e LO buffer operational amplifiers: 2x LTA8092\u003cbr\u003e Headphone amplifier: 2x OPA1642 + 2x TPA6120A\u003cbr\u003e USB input: 384 kHz\/32-bit, DSD256\u003cbr\u003e Coaxial input: 192 kHz\/24-bit, DSD64\u003cbr\u003e Optical input: 96 kHz\/24-bit\u003cbr\u003e USB port: Dual Type-C\u003cbr\u003e Display: Custom LCD\u003cbr\u003e Power supply: AC 100-240 V, 50\/60 Hz DC 12 V\/2.5 A\u003cbr\u003e Dimensions: approx. 210 x 188 x 42 mm (including feet)\u003cbr\u003e Weight: approx. 980 g\u003cbr\u003e Single-ended output power 1: L+R ≥ 1220 mW + 1220 mW (32 Ω, THD+N \u0026lt; 1%) (32 Ω\/SE\/high gain)\u003cbr\u003e Single-ended output power 2: L+R≥150 mW+150 mW (300 Ω, THD+N＜1%) (300 Ω\/SE\/high gain)\u003cbr\u003e Balanced output power 1: L+R≥2400 mW+2400 mW (32 Ω, THD+N＜1%) (32 Ω\/balanced\/high gain)\u003cbr\u003e Balanced output power 2: L+R≥600 mW+600 mW (300 Ω, THD+N＜1 %) (300 Ω\/balanced\/high gain)\u003cbr\u003e Frequency response: 20 Hz to 80 kHz\u003cbr\u003e Attenuation \u0026lt; 2.9 dB\u003cbr\u003e SNR: ≥ 116 dB (A-weighted) \u003cbr\u003eNoise: PO \u0026lt; 9 uV (A-weighted); BAL \u0026lt; 18 uV (A-weighted)\u003cbr\u003e Output impedance: PO \u0026lt; 0.7 Ω (32 Ω load); BAL＜1 Ω (32 Ω load)\u003cbr\u003e THD+N: approx. 0.0173% (1 kHz\/-6 dB at 32 Ω)\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eWhat's in the box\u003c\/strong\u003e\u003cbr\u003e 1x K13 R2R\u003cbr\u003e 1x power cable\u003cbr\u003e 1x infrared remote control\u003cbr\u003e 1x USB data cable\u003cbr\u003e 1x headphone adapter\u003cbr\u003e 1x quick start guide\u003cbr\u003e 1x warranty card\u003c\/p\u003e","brand":"FiiO","offers":[{"title":"Black","offer_id":52572995584341,"sku":"K13 R2R-B","price":319.0,"currency_code":"EUR","in_stock":true},{"title":"Silver","offer_id":52572995617109,"sku":"K13 R2R-S","price":319.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1356\/2245\/files\/FiiO-K13-R2R-ausiniu-stiprintuvas-su-DAC_82a1156b.webp?v=1771663724","url":"https:\/\/www.autogarsas.lt\/en\/products\/fiio-k13-r2r-ausiniu-stiprintuvas-su-dac","provider":"AUTOGARSAS.LT","version":"1.0","type":"link"}