基本规格
名称/型号 K19 硬件方案 DAC: ES9039SPRO*2; USB: XMOS XU316; Bluetooth decoding: QCC5125;
AMP: 8-way THX788+
工作模式 USB DAC mode/Coaxial decoding mode/Optical decoding mode/HDMI decoding mode/HDMI ARC decoding mode/Bluetooth receiving mode
颜色 黑/银 重量 About 1800g
尺寸 About 250x225x36.7mm 音量控制 远程控制
MQA Support MQA global decoding Drive-free mode (Switch mode) Surpported
增益 Ultra high gain/Super high gain/High gain/Medium gain/Low gain 蓝牙接收(5.1) SBC/AAC/aptX/aptX LL/aptX HD/atpX Adaptive/LDAC
显示 1.30-inch TFT (240*240) fully laminated screen Display status indication Display indication: volume, gain, output mode, working mode, transmission format, sampling rate, EQ, etc.
蓝牙格式指示 Surpported Sample rate indication Surpported
卓宁控制 Surpported 固件升级 System firmware: upgrade through front panel USB interface
XMOS firmware: upgrade via front or rear panel USB interface
Bluetooth Firmware: Upgrade via ZHUONING Control
远程控制 Supports infrared remote control (only the delivered remote control is supported) Sample rate indication
(Knob indicator light)
Blue:44.1/48kHz
支持的最大采样率 USB decoding: supports up to 768kHz/32bit; DSD512 (Native);MQA Yellow:88.2/96/176.4/192/352.8/384/705.6/768kHz
Coaxial input decoding: supports up to 192kHz/24bit; DSD64 Green:DSD64/128/256/512
Optical input decoding: supports up to 96kHz/24bit Magenta:MQA
Coaxial output: supports up to 192kHz/24bit; DSD64 蓝牙格式指示灯
(Knob indicator light)
Bule:SBC
Optical fiber output: supports up to 192kHz/24bit Cyan:AAC
HDMI decoding: supports up to 192kHz/24bit Purple:aptX/aptX LL
HDMI output: supports up to 192kHz/24bit Yellow:aptX HD
HDMI ARC decoding: supports 44.1/48kHz Green:aptX Adaptive
Adaptation impedance PO:8~150Ω White:LDAC
BAL:8~350Ω    
Buttons and Interfaces
按键 Encoder knob (volume knob with button*1+menu knob with button*1) USB 接口 Type-C USB (data transmission interface*2+RS232 DSP adjustment interface*1)
DC power input interface Φ6.2mm DC socket Toggle Switches DC power supply and AC power supply selector switch*1+ground selector switch*1
Digital optical input interface fiber optic socket 数字同轴输入接口 RCA插座
Digital optical output interface fiber optic socket Digital coaxial output interface RCA插座
Balanced output interface Standard 4.4mm socket*1+XLR4 balanced socket*1 耳机输出接口 Standard 6.35mm socket
平衡线输出接口 XLR3 balanced socket 单端线路输出接口 RCA socket*2
HDMI interface HDMI IN interface*1; HDMI OUT(ARC) interface*1 TRIGGER interface Standard 3.5mm headphone jack (TRIGGER IN interface*1+TRIGGER OUT interface*1)
功率参数
电源 Support AC 100-240V~50/60Hz; DC 15V/≥3A (choose one of the two) 电池容量 None
音频参数
Some performance parameters of headphone output (6.35mm output, USB DAC/Coaxial decoding/Optical decoding, Ultra high gain mode)
输出功率 1 L+R≥4000mW+4000mW(16Ω,THD+N<1%) 输出阻抗 < 0.6Ω ( 32Ω )
输出功率 2 L+R≥2300mW+2300mW(32Ω,THD+N<1%) 串扰 ≥75dB (1kHz@32Ω)
输出功率 3 L+R≥270mW+270mW(300Ω ,THD+N<1%) THD+N <0.0003%(1kHz/-6dB@32Ω)
本底噪声 <3.5μV (A-weighted) SNR ≥ 127dB ( A加权)
频率响应 20Hz ~ 20kHz :衰减< 0.2dB
20Hz ~ 80kHz :衰减< 3dB
峰值输出电压 >22.5Vp-p
Some performance parameters of headphone output (6.35mm output, USB DAC/Coaxial decoding/Optical decoding, Super high gain mode)
输出功率 1 L+R≥2400mW+2400mW(16Ω,THD+N<1%) 输出阻抗 < 0.6Ω ( 32Ω )
输出功率 2 L+R≥1250mW+1250mW(32Ω,THD+N<1%) 串扰 ≥75dB (1kHz@32Ω)
输出功率 3 L+R≥135mW+135mW(300Ω ,THD+N<1%) THD+N <0.0003%(1kHz/-4dB@32Ω)
本底噪声 <3.5μV (A-weighted) SNR ≥ 127dB ( A加权)
频率响应 20Hz ~ 20kHz :衰减< 0.2dB
20Hz ~ 80kHz :衰减< 3dB
峰值输出电压 >17.5Vp-p
Some performance parameters of single-ended line output (RCA output, USB DAC/Coaxial decoding/Optical decoding)
THD+N <0.00032%(1kHz/-0.8dB@10kΩ) SNR ≥122dB (A计权)
串扰 ≥110dB (1kHz@10kΩ) 本底噪声 <1.6μV(A计权)
频率响应 20Hz~20kHz: Attenuation <0.1dB
20Hz ~ 80kHz :衰减< 3dB
线路输出电平 2.5Vrms  (1kHz@10kΩ)
Some performance parameters of balanced headphone output (4.4mm/XLR4 output, USB DAC/Coaxial decoding/Optical decoding, Ultra high gain mode)
输出功率 1 L+R≥4000mW+4000mW(16Ω,THD+N<1%) 输出阻抗 < 0.6Ω ( 32Ω )
输出功率 2 L+R≥8000mW+8000mW(32Ω,THD+N<1%) 串扰 ≥120dB (1kHz@32Ω)
输出功率 3 L+R≥1100mW+1100mW(300Ω ,THD+N<1%) THD+N <0.0002%(1kHz/-6dB@32Ω)
本底噪声 <6μV (A-weighted) SNR ≥ 128dB ( A加权)
频率响应 20Hz ~ 20kHz :衰减< 0.2dB
20Hz ~ 80kHz :衰减< 3dB
峰值输出电压 >45Vp-p
Some performance parameters of balanced headphone output (4.4mm/XLR4 output, USB DAC/Coaxial decoding/Optical decoding, Super high gain mode)
输出功率 1 L+R≥4000mW+4000mW(16Ω,THD+N<1%) 输出阻抗 < 0.6Ω ( 32Ω )
输出功率 2 L+R≥5000mW+5000mW(32Ω,THD+N<1%) 串扰 ≥120dB (1kHz@32Ω)
输出功率 3 L+R≥550mW+550mW(300Ω ,THD+N<1%) THD+N <0.0003%(1kHz/-9dB@32Ω)
本底噪声 <6μV (A-weighted) SNR ≥ 126dB ( A加权)
频率响应 20Hz ~ 20kHz :衰减< 0.2dB
20Hz ~ 80kHz :衰减< 3dB
峰值输出电压 >35.8Vp-p
Balanced line output performance parameters (XLR3, USB DAC/Coaxial decoding/Optical decoding)
THD+N <0.00025%(1kHz/0dB@10kΩ) SNR ≥ 128dB ( A加权)
串扰 ≥120dB (1kHz@10kΩ) 本底噪声 <2.0μV (A-weighted)
频率响应 20Hz~20kHz: Attenuation <0.1dB
20Hz ~ 80kHz :衰减< 3dB
线路输出电平 4.8Vrms  (1kHz@10kΩ)

PO Ultra high gain mode@2V 32Ω

 

THD + N曲线2

 

Test conditions: USB/coaxial/optical input, -4dB sine signal, Super high gain mode, 6.35 headphone output (32Ω load)

PO Super high gain mode@2V 32Ω

BAL PO Ultra high gain mode@4V 32Ω

 BAL PO Super high gain mode@4V 32Ω

BAL LO@4V  10KΩ

LO@2V 10KΩ

频率响应曲线1

 

Test conditions: USB/coaxial/optical input, -5dB sine signal, Ultra high gain, 20Hz-20kHz, 6.35 headphone output (32Ω load)

频率响应曲线2

 

Test conditions: USB/coaxial/optical input, -5dB sine signal, Super high gain, 20Hz-92KHz, 6.35 headphone output (32Ω load)

频率响应曲线3

 

Test conditions: USB/coaxial/optical input, -5dB sine signal, Ultra high gain, 20Hz-20KHz, 6.35 headphone output (32Ω load)

频率响应曲线4

 

Test conditions: USB/coaxial/optical input, -5dB sine signal, Super high gain, 20Hz-92KHz, 6.35 headphone output (32Ω load)

频率响应曲线5

 

Test conditions: USB/coaxial/optical input, -5dB sine signal, Ultra high gain mode, 20Hz-20KHz, 4.4mm/XLR4 balanced output (32Ω load)

频率响应曲线6

 

Test conditions: USB/coaxial/optical input, -5dB sine signal, Super high gain mode, 20Hz-92KHz, 4.4mm/XLR4 balanced output (32Ω load)

Frequency response curve 7

 

Test conditions: USB/coaxial/optical input, -5dB sine signal, Super high gain mode, 20Hz-20KHz, 4.4mm/XLR4 balanced output (32Ω load)

Frequency response curve 8

 

Test conditions: USB/coaxial/optical input, -5dB sine signal, Super high gain mode, 20Hz-92KHz, 4.4mm/XLR4 balanced output (32Ω load)

Frequency response curve 9

 

Test conditions: USB/coaxial/fiber input, -5dB sinusoidal signal, 20Hz-20KHz, RCA line output (10Ω load)

Frequency response curve 10

 

Test conditions: USB/coaxial/fiber input, -5dB sinusoidal signal, 20Hz-92KHz, RCA line output (10KΩ load)

Frequency response curve 11

 

Test conditions: USB/coaxial/optical input, -5dB sinusoidal signal, 20Hz-20KHz, XLR3 balanced line output (10KΩ load)

Frequency response curve 12

 

Test conditions: USB/coaxial/optical input, -5dB sinusoidal signal, 20Hz-92KHz, XLR3 balanced line output (10KΩ load)

THD + N曲线1

 

Test conditions: USB/coaxial/optical input, -6dB sine signal, Ultra high gain mode, 6.35 headphone output (32Ω load)

THD + N曲线3

 

Test conditions: USB/coaxial/optical input, -6dB sine signal, Ultra high gain mode, 4.4mm/XLR4 balanced headphone output (32Ω load)

THD + N曲线4

 

Test conditions: USB/coaxial/optical input, -9dB sine signal, Super high gain mode, 4.4mm/XLR4 balanced headphone output (32Ω load)

THD+N curve 5

 

Test conditions: USB/coaxial/fiber input, -0.8dB sinusoidal signal, RCA line output (10KΩ load)

THD+N curve 6

 

Test conditions: USB/coaxial/optical input, 0dB sine signal, XLR3 balanced line output (10KΩ load)