Play anything from anywhere, Qplay Casting + NAS Playback

With Roon Ready, 播放, 和 Qplay certifications, the K17 R2R works seamlessly with the platforms 和 devices you already use. Newly added NAS server playback brings your home music library into the picture, 支持部门ing NFS 和 SMB protocols with one-tap access via the 卓宁控制 app. From cloud streaming to lossless local network playback—whatever you want to hear, the K17 R2R gets it to your ears.

Precisely restored audio, Every last detail audible

3 low phase noise femtosecond audio crystal oscillators

The K17 R2R employs two industry-leading ACCUSILICON AS318-L ultra-low phase noise femtosecond crystal oscillators (45.1584MHz, 49.1520MHz) alongside a ZHUONING-customized ultra-low phase noise femtosecond oscillator (12MHz). These significantly reduce the impact of phase noise on audio signals, allowing audio signals of various sampling rates to be precisely 和 faithfully restored—resulting in purer 和 more consistent sound.

Listen with peace of mind with various protection mechanisms that can intelligently detect abnormal conditions 和 perform automatic protection to avoid damage to the machine, including: headphone amp temperature protection, transformer temperature protection, output over加载 protection, output DC protection, 和 power input overcurrent protection.

多项 protection systems, Listen without worries

Eight operating modes

Many usage scenarios

Building on the classic square-和-round design, the side panels have been reimagined. Choose the silver chassis with im端口ed ash wood for a look that's crisp 和 quietly elegant; opt for the 黑 chassis with im端口ed 黑 walnut for a deeper, more reserved sophistication. The organic grain of solid wood 和 the precision of metal finish each other in perfect 对比度—和 because no two pieces of wood are alike, every unit is entirely its own. 多项 knobs provide smooth, intuitive control, while the grille structure ensures efficient heat dissipation. Every last detail has been thoughtfully engineered.

*The side panels are crafted from select natural wood im端口ed from North America. Because every wood grain pattern is uniquely formed by nature, the appearance of the actual product may vary.

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Square 和 circle, The warmth of real wood

The K17 R2R features a M21586Q DSP chip which is capable of double-precision 64-bit floating-point calculations, 和 runs at a high 360MHz clock frequency. This chip is complemented by a high-performance ES9821Q ADC as well as a specially customized ultra-low phase noise femtosecond crystal oscillator. These three components allow the user, in all modes, to utilize the 31-b和 high-precision lossless PEQ. The PEQ is designed to ensure the audio signal is still of high fidelity even after being processed. The chip also allows for robust output protection functionality, ensuring that headphones 和 other connected audio equipment are fully protected.

Specialty chips for specialty uses, Exceptionally strong

An im端口ant part of the K17 R2R is a carefully crafted fully discrete amplifier circuit for headphones. This discrete circuit is of an OP+ transistor current amplification design, equipped with the classic pair of ON Semiconductor MJE243/253 transistors. It is capable of producing high current with low 输出阻抗. The result is up to 4000mW+4000mW 输出功率 in balanced mode, nearly double that of the K9 Pro ESS. This allows it to easily drive various kinds of headphones 和 IEMs 和 to produce smooth, pleasant, 和 natural sound.

Discrete class AB current amplification headphone amplifier

DEL (Dual Engine Limiter) technology together with proprietary algorithms allows the K17 R2R’s PEQ to be capable of dynamic range compression (DRC)/dynamic range expansion (DRE), limiter, 和 compressor adjustment functions. PCM 44.1k~96k signals can be processed in the PEQ without sample rate conversion. Fine adjustments of audio 参数 are thus possible, allowing for adjustment such as a 增益 range of +12~-24dB 和 a Q value range of 0.4dB~128dB. The PEQ allows the user to simulate or correct the 频率响应 curve. PEQ settings can be easily ex端口ed, im端口ed, shared, 和 saved—making it easy for anybody to use the PEQ 和 correct or simulate various 频率响应 curves of different headphones.

31-b和 high-precision lossless PEQ

Find manually adjusting a 31-b和 lossless PEQ too complex? AUTO EQ automatically matches your headphones’ target curve, instantly unlocking your ideal listening profile with a single click while keeping the audio pristine 和 lossless. It also comes packed with built-in presets for Pop, Jazz, 和 Classical, plus the freedom to customize 和 fine-tune b和 by b和—giving you complete personal control over your ideal sound.

支持 AUTO EQ Your ideal sound, One tap away

高-end parts, All for great sound

高-end parts, All for great sound

多项 control methods, Easy to use

The 网口 支持部门s up to Gigabit speeds for fast 和 stable data transmission. The AP6256 Wi-Fi module 支持部门s 2.4G 和 5G wireless networks as an alternative yet equally stable method of transmitting lossless audio.

Wired or wireless, Always online

已标记的按钮和端口

From the DAC, to the I/V conversion, to the low-pass filtering, 和 to headphone amp, the entire audio circuit is of a fully differential circuit architecture design. This ensures both high dynamic range of the signals as well as significantly reduced crosstalk. Various parts of the audio circuit, including the I/V conversion 和 LPF stages, use multiple low-noise precision Texas Instruments (TI) op-amps to ensure dynamic audio output.

Fully balanced design

Precision 电源 design

35W low-noise 线性电源, Five large 4700μF electrolytic capacitors

Separate power supplies for analog 和 digital circuits

多级模拟电源