基本规格
名称/型号 K15 硬件方案 Main control: X2000; MCU: ESP32-S3; DAC: AK4497S*2; USB decoding: XU316; Bluetooth decoding: QCC5125; AMP: MJE243G/253G discrete transistor current amplification 
工作模式 USB DAC mode/Coaxial decoding mode/Optical decoding mode/Line in mode/Balanced in mode/Bluetooth receiving mode/Streaming media receiving mode/Local playback mode
颜色 黑/银 重量 About 2100g
尺寸 About 244.6x213x66.8mm 音量控制 Knob/Touch-on-display/Remote control
MQA 支持MQA全解码 Driver-free mode (Switch mode) 支持
增益 Ultra high gain mode/Super high gain mode/High gain/Medium gain/Low gain Bluetooth receiving (5.1) SBC/AAC/aptX/aptX LL/aptX HD/aptX Adaptive/LDAC
显示 3.93-inch LCD (240*1020) bezel-less screen Touch-on-display 支持
PEQ Supports 10-band PEQ (No PEQ processing in line input and balanced input) 卓宁链接 支持通过APP设置
WiFi 支持2.4G/5G双频WiFi 固件升级 SOC firmware: Upgrade through the rear USB-A port
MCU firmware: Upgrade through the rear RS232 port
XMOS固件：通过前端或后端USB-C端口升级
远程控制 支持红外遥控（仅随附配件中的遥控器） 指示灯 支持自定义颜色、亮度，支持始终在线指示或RGB脉冲
Max. supported sampling rate (PEQ=OFF) USB decoding: Up to 768kHz/32bit; DSD512 (Native) 屏幕状态指示 Working mode, output mode
Coaxial input decoding: Up to 192kHz/24bit; DSD64 Track format, sampling rate
Optical input decoding: Up to 96kHz/24bit EQ, volume
Streaming decoding: Up to 384kHz/32bit; DSD256 (DOP) Network status, Bluetooth codec
Local playback: Up to 384kHz/32bit; DSD256 增益
自适应阻抗 PO: 8 ~ 150Ω 　 　
BAL: 8 ~ 350Ω 　 　
按键与接口
旋钮 Power on/off knob*1+Analog output level knob*1+Gain level knob*1+Volume knob with button*1+Menu knob with button*1 USB 端口 Type-C USB*3 (Data transmission port*2+RS232 DSP regulating port*1)
USB-A*1 (Data transmission port)
平衡耳机输出 Standard 4.4mm port*1+XLR4 balanced port*1 耳机输出 标准3.5mm端口
数字光纤输入端口 光端口 数字同轴输入端口 RCA端口
平衡线输出端口 XLR3平衡接口 单端线路输出端口 RCA端口
Balanced line input port 标准4.4mm端口 Single-ended line input port RCA端口
拨动开关 Power switch Housing grounding terminal M4 banana port (Can be directly connected to use)
网口 1000Mbps 　 　
电源参数
电源 AC 100-240V~50/60Hz; DC 12V/≥2.5A (either-or) 电池容量 N/A
音频参数
Performance and parameters of headphone output (6.35mm out, USB DAC/Coaxial decoding/Optical decoding, Ultra high gain mode)
输出功率 1 L + R ≥ 1400mW +1400mW (16Ω, THD + N < 1%) 输出阻抗 ＜ 1Ω (32Ω)
输出功率 2 L+R≥1400mW+1400mW (32Ω, THD+N＜1%) 串扰 ≥76dB (1kHz@32Ω)
输出功率 3 L+R≥180mW+180mW (300Ω , THD+N＜1%) THD+N ＜0.00054% (1kHz/-12dB@32Ω)
输出功率 ＜5.3μV (A-weighted) SNR ≥ 122dB （ A加权）
频率响应 20Hz ~ 20kHz ：衰减＜ 0.2dB
20Hz ~ 80kHz ：衰减< 2.8dB		 峰值输出电压 ＞20.6Vp-p
Performance and parameters of headphone output (6.35mm out, USB DAC/Coaxial decoding/Optical decoding, Super high gain mode)
输出功率 1 L + R ≥ 1400mW +1400mW (16Ω, THD + N < 1%) 输出阻抗 ＜ 1Ω (32Ω)
输出功率 2 L+R≥760mW+760mW (32Ω, THD+N＜1%) 串扰 ≥76dB (1kHz@32Ω)
输出功率 3 L+R≥90mW+90mW (300Ω , THD+N＜1%) THD+N ＜0.00058% (1kHz/-10dB@32Ω)
输出功率 ＜5.3μV (A-weighted) SNR ≥ 119dB （ A加权）
频率响应 20Hz ~ 20kHz ：衰减＜ 0.2dB
20Hz ~ 80kHz ：衰减< 2.8dB		 峰值输出电压 ＞14.6Vp-p
Performance and parameters of single-ended line output (RCA out, USB DAC/Coaxial decoding/Optical decoding)
THD+N ＜0.00071% (1kHz/-11dB@10kΩ) SNR ≥ 119dB （ A加权）
串扰 ≥119dB (1kHz@10kΩ) 输出功率 ＜2.6μV (A-weighted)
频率响应 20Hz ~ 20kHz ：衰减＜ 0.2dB
20Hz ~ 80kHz ：衰减< 2.8dB		 线路输出电平 2.4Vrms  (1kHz@10kΩ)
Performance and parameters of balanced headphone output (4.4mm/XLR4 out, USB DAC/Coaxial decoding/Optical decoding, Ultra high gain mode)
输出功率 1 L + R ≥ 1400mW +1400mW (16Ω, THD + N < 1%) 输出阻抗 ＜ 1.5Ω (32Ω)
输出功率 2 L+R≥3000mW+3000mW (32Ω, THD+N＜1%) 串扰 ≥116dB (1kHz@32Ω)
输出功率 3 L+R≥700mW+700mW (300Ω , THD+N＜1%) THD+N ＜0.00059% (1kHz/-13dB@32Ω)
输出功率 ＜9.5μV (A-weighted) SNR ≥ 120dB （ A加权）
频率响应 20Hz ~ 20kHz ：衰减＜ 0.2dB
20Hz ~ 80kHz ：衰减< 2.8dB		 峰值输出电压 ＞41Vp-p
Performance and parameters of balanced headphone output (4.4mm/XLR4 out, USB DAC/Coaxial decoding/Optical decoding, Super high gain mode)
输出功率 1 L + R ≥ 1400mW +1400mW (16Ω, THD + N < 1%) 输出阻抗 ＜ 1.5Ω (32Ω)
输出功率 2 L+R≥2800mW+2800mW (32Ω, THD+N＜1%) 串扰 ≥116dB (1kHz@32Ω)
输出功率 3 L+R≥350mW+350mW (300Ω , THD+N＜1%) THD+N ＜0.00054% (1kHz/-9dB@32Ω)
输出功率 ＜9.5μV (A-weighted) SNR ≥ 120dB （ A加权）
频率响应 20Hz ~ 20kHz ：衰减＜ 0.2dB
20Hz ~ 80kHz ：衰减< 2.8dB		 峰值输出电压 ＞29Vp-p
Performance and parameters of balanced line output (XLR3, USB DAC/Coaxial decoding/Optical decoding)
THD+N ＜0.00055% (1kHz/-8dB@10kΩ) SNR ≥ 120dB （ A加权）
串扰 ≥117dB (1kHz@10kΩ) 输出功率 ＜3.3μV (A-weighted)
频率响应 20Hz ~ 20kHz ：衰减＜ 0.2dB
20Hz ~ 80kHz ：衰减< 2.8dB		 线路输出电平 4.8Vrms (1kHz@10kΩ)