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Hardware scheme
DAC: AK4452,USB: XMOS XU316,AMP:THX_AAA_28*2
卷滚动
电位器+ ADC采样
No
Samplig rate indication
Blue=PCM
Green =DSD
Magenta=MQA
推荐耳机阻抗
固件升级
System firmware and XMOS can be upgraded via USB
按钮和界面
USB
Headphones ports
3.5mm(phone out/line in), 4.4mm, 2.5mm (Bal to unbal adapters are prohibited)
功率参数
电池寿命和测试条件
3.5mm output:≥13h | 2.5mm/4.4mm output:≥12h
2.5mm/4.4mm output:≥23h
Headphone output performance parameters (3.5mm output)
输出阻抗
THD+N
SNR
频率响应
本底噪声
Balanced output performance parameters(4.4mm/2.5mm,UAC IN)
Balanced output performance parameters(4.4mm/2.5mm,Line IN)
输出功率
串扰
输出水平
20Hz-20KHz:(±:0.2dB)
频率响应曲线1 Test conditions: USB DAC input,-5dB sinusoidal signal, 20Hz-20kHz, headphone output (32 Ω load)红色:左声道;蓝色:右声道
频率响应曲线2 Test conditions: USB DAC input,-5dB sinusoidal signal, 20Hz-50kHz, headphone output (32 Ω load)红色:左声道;蓝色:右声道
频率响应曲线3 Test conditions: USB DAC input,-5dB sinusoidal signal, 20Hz-20kHz, balanced output (32 Ω load)红色:左声道;蓝色:右声道
频率响应曲线4 Test conditions: USB DAC input,-5dB sinusoidal signal, 20Hz-50kHz, balanced output (32 Ω load)红色:左声道;蓝色:右声道
distortion plot 2
Test condition: USB DAC, play-2dB high gain sinusoidal signal, 20Hz-20kHz,BAL output (32 Ω load)
distortion graph 3
distortion graph 1
Test condition: USB DAC, play-6dB high gain sinusoidal signal, 20Hz-20kHz,PO output (32 Ω load)
frequency response curve 5 Test conditions: Line IN input,-5dB sinusoidal signal, 20Hz-20kHz, balanced output (32 Ω load)红色:左声道;蓝色:右声道