| 基本规格 |
| 名称/型号 |
K9 AKM |
硬件方案 |
DAC: AK4499EX+AK4191EQ, USB decoding: XUF208, Bluetooth: QCC5124, LPF: OPA1612*2, Volume IC: NJU72315*2, AMP: THX AAA788+*2, transformer: linear transformer |
| 彩色 |
黑色 |
音量控制 |
Analog Potentiometer (ADC sampling) |
| 重量 |
Approximately 2660g |
渠道余额 |
L12 to R12 (0.5dB per stage) |
| 增益 |
L/M/H |
卓苧控制 |
支持部门 |
| 蓝牙格式指示 |
支持部门 |
Sample Rate Indication |
支持部门 |
| 尺寸 |
200x 224.5x 72mm (excluding foot pads) |
固件升级 |
System firmware upgrades through USB, Bluetooth firmware upgrades through ZHUONING Control |
| Deep Standby |
Long press the multi-function key for about 3 seconds |
Low Power Reminder |
None |
| 蓝牙发射 |
None |
蓝牙接收(5.1) |
AAC/SBC/aptX/aptX LL/aptX HD/LDAC/atpX自适应 |
| 蓝牙格式指示灯 |
SBC ：蓝色， AAC ：青色， aptX HD ：黄色， aptX ：紫色， aptX LL ：紫色， LDAC ：白色， atpX自适应：绿色 |
Adapted impedance |
PO:8~150Ω |
| 支持的最大采样率 |
768kHz-32bit/DSD512(USB DAC) |
BAL:8~350Ω |
| 192 kHz-24bit (coaxial) |
| 96 KHz-24bit (fiber) |
| Keys and Interfaces |
| key |
Solid key + toggle switch |
USB |
USB B*1, Type-C*1 |
| Single-ended input interface |
RCA Socket |
Balancing Line Input Interface |
4.4mm balance socket |
| Digital Fiber Input Interface |
optical fiber socket |
Digital Coaxial Input Interface |
RCA插座 |
| Balancing output interface |
4.4mm socket, XLR4 balanced socket |
耳机输出接口 |
standard 6.35mm socket |
| Balancing line output interface |
XLR3 balance socket |
单端线路输出接口 |
RCA Socket |
| 电源参数 |
| 电源 |
AC 100-120V ~/AC 220-240V ~ (recommended) |
电池容量技术 |
None |
| 音频参数 |
| Some performance parameters of single-ended line output |
| 失真加噪声 |
＜0.00027% (1kHz/-0.7dB@10kΩ) |
信噪比 |
≥ 119dB （ A加权） |
| 通道分离 |
≥112dB (1kHz@10kΩ) |
底噪 |
＜2.9μV (A-weighted) |
| 频率响应 |
20Hz ~ 50kHz ：阻尼＜ -3.5dB |
输出水平 |
2.3Vrms (1kHz@10kΩ) |
| Performance Parameters of Balanced Line Output |
| 失真加噪声 |
＜0.00020% (1kHz/-1dB@10kΩ) |
信噪比 |
≥ 128dB （ A加权） |
| 通道分离 |
≥122dB (1kHz@10kΩ) |
底噪 |
＜1.9μV (A-weighted) |
| 频率响应 |
20Hz ~ 50kHz ：阻尼＜ -3.5dB |
输出水平 |
4.7Vrms (1kHz@10kΩ) |
| Headset Output Part Performance Parameters (6.35mm) |
| 输出功率 1 |
L+R≥1000mW+1000mW (16Ω, THD+N＜1%, AUX/UAC/SPDIF/BT IN) |
输出阻抗 |
＜ 1Ω (32Ω) |
| 输出功率 2 |
L+R≥1500mW+1500mW (32Ω, THD+N＜1%, AUX/UAC/SPDIF/BT IN) |
通道分离 |
≥76dB (1kHz@32Ω) |
| 输出功率 3 |
L+R≥200mW+200mW (300Ω, THD+N＜1%, AUX IN) |
失真加噪声 |
＜0.00026% (1kHz/-1.3dB@32Ω) |
| 底噪 |
＜3.0μV (A-weighted) |
信噪比 |
≥ 127dB （ A加权） |
| 频率响应 |
20Hz ~ 50kHz ：阻尼＜ -3.5dB |
输出电压 |
＞21Vp-p |
| balanced headphone output part performance parameters (4.4mm/XLR4) |
| 输出功率 1 |
L+R≥1000mW+1000mW (16Ω, THD+N＜1%, AUX/UAC/SPDIF/BT IN) |
输出阻抗 |
＜ 1Ω (32Ω) |
| 输出功率 2 |
L+R≥2000mW+2000mW (32Ω, THD+N＜1%, AUX/UAC/SPDIF/BT IN) |
通道分离 |
≥116dB (1kHz@32Ω) |
| 输出功率 3 |
L+R≥780mW+780mW (300Ω, THD+N＜1%, AUX IN) |
失真加噪声 |
＜0.00029% (1kHz/-9.5dB@32Ω) |
| 底噪 |
＜5.2μV (A-weighted) |
信噪比 |
≥ 124dB （ A加权） |
| 频率响应 |
20Hz ~ 50kHz ：阻尼＜ -3.5dB |
输出电压 |
＞42Vp-p |
